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- Tkinter - Basic Elements to create GUI
What is Tkinter? Tkinter is an inbuilt Python module used to create simple GUI application. It is the most commonly used module for GUI apps in Python. It has many geometry managers which make it more attractive. It is by default come with python so no need to worry about it. In this, I am using python 3.7 version. So that before starting it first fix your version issue. You can download Python latest version, directly from the Python official website. Steps which you can follow before start writing code 1 - import tkinter module first from tkinter import * or import tkinter as tk or import tkinter 2 - In the second step initialize window manager using, tkinter.Tk() root = tk.TK() or root = TK() 3 - Then set window title root.title("My app") Tkinter has many GUI widgets, which used to create attractive GUI, in this blog we will learn some important geometry manager like grid(), pack(), etc., which used to maintain the position of widgets. Before start first we understand basic Tkinter code format: Tkinter Widgets Before starting to create Tkinter GUI first have knowledge all Tkinter widgets, here we provided list of all Tkinter widgets Button: Button widget is used to place the buttons in the Tkinter Canvas: Canvas is used to draw shapes in your GUI Check button: The check button is used to create the check buttons in your application. You can select more than one option at a time. Entry: Entry widget is used to create input fields in the GUI. Frame: Frame is used as containers in the Tkinter. Label: Label is used to create a single line widgets like text, images, etc.., Menu: Menu is used to create menus in the GUI. Syntax: from tkinter import * root = Tk() ### Add window title and set size here ### ### Add widgets here ### root.mainloop() Example to set Tkinter Geometry Here we will discuss some examples which clearly understandable. Before start it first we know all geometry methods: pack() grid() place() These are the topmost important methods which used to set all Tkinter GUI but here some point which is necessary to know. Point 1: We can't use pack() with grid() geometry so before starting it is decide which is important to create GUI. In my overview, if any previous conditions are not given then you choose grid(), because you can easily set x and y dimension: For Example: grid(row = 10, column = 50) And pack() can we define using pack(side = Option) where the option is LEFT, RIGHT. TOP, BOTTOM Point 2: You can use pack() with the place(x= 10, y=20), you can use both GUI in the same both are work. This is the better way to create a Tkinter GUI. Example to create a GUI using grid() In this example, we use some mathematical calculations like a sub, add, multiplication, division like a simple calculator, and output shown in the label below the button. Here we attached screenshots of output here for your better understanding regarding this. Here we attached the code which is completely done using grid(). You can also try itself pack() with place using this. Set Label entry using StringVar() First, define it: in the constructor class self.result = StringVar() Then use it in methods to print results in the label and updated by the new value. Pass variable to label: self.result_lebel = Label(self.master,textvariable=self.result, bg = "skyblue") self.result_lebel.config(font=("Lato", 15)) self.result_lebel.pack() Then print the result using methods: for example def add(self): num1 = int(self.entry_1.get()) num2 = int(self.entry_2.get()) result = num1 + num2 self.result.set("The Sum is " + str(result)) The Second Syntax we will use frame it is very important to divide the window into more than two parts Using Frame Creating Tkinter Gui using a frame. Here we use some basic syntax to create the GUI using frame. It uses when we needed to divide the window into many parts as per your choice. We can use a simple frame as: First set frame using a master or main window, then use as per given below syntax of code: If you like Codersarts blog and looking for Programming Assignment Help Service, Database Development Service, Web development service, Mobile App Development, Project help, Hire Software Developer, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in the comment section below if you find anything incorrect in this blog post
- JavaScript Tutorial- Part 2
JavaScript Comments JavaScript comments is used to explain JavaScript code, and to make it more readable. JavaScript comments is also used to prevent execution, when testing alternative code. Single Line Comments Single line comments starts with //. Any text after // till the end of the line will be ignored by JavaScript (that is will not be executed). Example: Multi-line Comments Multi-line comments start with /* and end with */. Any text between /* and */ will be ignored by JavaScript. Example: Using Comments to Prevent Execution Using comments to prevent execution of code is suitable for code testing. Adding // in front of a code line changes the code lines from an executable line to a comment. Example: JavaScript Variables JavaScript variables are containers for storing data values. Data are placed in these containers and then referred by simply naming the container. Before using a variable in a JavaScript program, it is declared with the var keyword. Example: In the above example: a stores the value 10 b stores the value 2 c stores the value 20 Note:- JavaScript variables are containers for storing data values. JavaScript Identifiers All JavaScript variables must be identified with unique names. These unique names are called identifiers. Identifiers can be short names (like a and b) or more descriptive names (name, age, totalPrice). The general rules for constructing names for variables (unique identifiers) are: Names can contain letters, digits, underscores, and dollar signs.Names must begin with a letter Names can also begin with ( $ ) and ( _ ). Names are case sensitive (a and A are different variables). Reserved words (like JavaScript keywords) cannot be used as names. Note:- JavaScript identifiers are case-sensitive. The Assignment Operator In JavaScript, the equal sign (=) is an "assignment" operator, not an "equal to" operator. The "equal to" operator is written like (==) in JavaScript. JavaScript Data Types JavaScript can handle many types of data. Strings are written inside double or single quotes. Numbers are written without quotes. Text values are called text strings. If a number is written in quotes, it will be treated as a text string. Example: Declaring (Creating) JavaScript Variables Creating a variable in JavaScript is called "declaring" a variable. In JavaScript variable is declared with var keyword: var name; After the declaration, the variable has no value (technically it has the value of undefined). The equal sign is used to assign the value to the variable: name = "Mukesh"; Value can also be assigned to the variable when it is declared: var name = "Mukesh"; Example: Declaring variables at the beginning of the script is preffered. One Statement, Many Variables Many variables can be declared in one statement. The statement is started with var and separated with comma. Example: A declaration can also be span in multiple lines. Undefined Value In JavaScript, variables are usually declared without a value. The value can be anything and will be provided later, like user input. A variable declared without a value will have the undefined value. Example: Re-Declaring JavaScript Variables If a JavaScript variable is re-defined, it will not lose its value. Example: JavaScript Operators An operator is capable of manipulating a certain value or operand. Operators are used to perform specific mathematical and logical computations on operands. There are various operators supported by JavaScript: Arithmetic Operators Comparison Operators Logical Operators Assignment Operators Ternary Operators typeof Operator Example: JavaScript Arithmetic Operators Arithmetic operators are used to perform arithmetic on numbers: Operator Description + Addition - Subtraction * Multiplication ** Exponentiation (ES2016) / Division % Modulus (Division Remainder) ++ Increment -- Decrement JavaScript Assignment Operators Assignment operators assign values to JavaScript variables. Operator Example Same As = x = y x = y += x += y x = x + y -= x -= y x = x - y *= x *= y x = x * y /= x /= y x = x / y %= x %= y x = x % y **= x **= y x = x ** y JavaScript String Operators The + operator is also used to add (concatenate) strings. Example: When used on strings, the + operator is called the concatenation operator. Adding Strings and Numbers Adding two numbers, will return the sum, but adding a number and a string will return a string: Example: If a number and a string is added, the result will be a string! JavaScript Comparison Operators Operator Description == equal to === equal value and equal type != not equal !== not equal value or not equal type > greater than < less than >= greater than or equal to <= less than or equal to ? ternary operator JavaScript Logical Operators Operator Description && logical and || logical or ! logical not JavaScript Type Operators Operator Description typeof Returns the type of a variable instanceof Returns true if an object is an instance of an object type JavaScript Functions A function is a set of statements that take inputs, perform some specific computation and produces output. A JavaScript function is executed when "something" invokes it (calls it). Example: JavaScript Function Syntax A JavaScript function is defined with the function keyword, followed by a functionName, followed by parentheses (). The parentheses may include parameter names separated by commas: (parameter1, parameter2, ...) The code to be executed, by the function, is placed inside curly brackets: {} Syntax: function functionName(parameter1, parameter2) { // code to be executed } Function parameters are listed inside the parentheses () in the function definition. Function arguments are the values received by the function when it is invoked. Inside the function, the arguments (the parameters) behave as local variables. Function Invocation JavaScript Function Invocation is used to executes the function code and it is common to use the term “call a function” instead of “invoke a function”. The code inside a function is executed when the function is invoked. Function Return The return statement begins with the keyword return separated by the value which we want to return from it. When JavaScript reaches a return statement, the function will stop executing. If the function was invoked from a statement, JavaScript will "return" to execute the code after the invoking statement. Functions often compute a return value. The return value is "returned" back to the "caller". Example: Functions Used as Variable Values Functions can be used the same way as you use variables, in all types of formulas, assignments, and calculations. Example: Local Variables Local variables are variables that are defined within functions. They have local scope, which means that they can only be accessed from within the function. Example: Since local variables are only recognized inside their functions, variables with the same name can be used in different functions. Local variables are created when a function starts, and deleted when the function is completed. JavaScript Objects As we know, JavaScript variables are containers for data values. JavaScript primitive data-types(Number, String, Boolean, null, undefined and symbol) stores a single value depending on their types. Objects are variables too. But objects can contain many values. The values are written as name:value pairs (name and value separated by a colon). JavaScript objects are containers for named values called properties or methods. Example: Object Definition You define (and create) a JavaScript object with an object literal. Spaces and line breaks are not important. An object definition can span multiple lines. Example: Object Properties The name:values pairs in JavaScript objects are called properties: Property Property Value first NameJohn last NameDoe age 50 eyeColor blue Accessing Object Properties Object properties can be accessed in two ways: objectName.propertyName or objectName["propertyName"] Example: Object Methods Objects can also have methods. Methods are actions that can be performed on objects. Methods are stored in properties as function definitions. Property PropertyValue firstName John lastName Doe age 50 eyeColor blue fullName function() {return this.firstName + " " + this.lastName;} Note:- A method is a function stored as a property. In a function definition, this refers to the "owner" of the function. Accessing Object Methods An object method is a function definition, stored as a property value. An object method can be accessed with the following syntax. objectName.methodName() Example: If a method is accessed without the () parentheses, it will return the function definition: Do Not Declare Strings, Numbers, and Booleans as Objects! When a JavaScript variable is declared with the keyword "new", the variable is created as an object: var x = new String(); // Declares x as a String object var y = new Number(); // Declares y as a Number object var z = new Boolean(); // Declares z as a Boolean object Avoid String, Number, and Boolean objects. They complicate your code and slow down execution speed. JavaScript Events HTML events are "things" that happen to HTML elements. When JavaScript is used in HTML pages, JavaScript can "react" on these events. HTML Events An HTML event can be something the browser does, or something a user does. Here are some examples of HTML events: An HTML web page has finished loading An HTML input field was changed An HTML button was clicked Often, when events happen, you may want to do something. JavaScript lets you execute code when events are detected. HTML allows event handler attributes, with JavaScript code, to be added to HTML elements. With single quotes: With double quotes: In the following example, an onclick attribute (with code), is added to a element: Example: In the example above, the JavaScript code changes the content of the element with id="demo". Common HTML Events Here is a list of some common HTML events: Event Description onchange An HTML element has been changed onclick The user clicks an HTML element onmouseover The user moves the mouse over an HTML element onmouseout The user moves the mouse away from an HTML element onkeydown The user pushes a keyboard key onload The browser has finished loading the page What can JavaScript Do? Event handlers can be used to handle, and verify, user input, user actions, and browser actions: Things that should be done every time a page loads Things that should be done when the page is closed Action that should be performed when a user clicks a button Content that should be verified when a user inputs data Many different methods can be used to let JavaScript work with events: HTML event attributes can execute JavaScript code directly HTML event attributes can call JavaScript functions You can assign your own event handler functions to HTML elements You can prevent events from being sent or being handled JavaScript Strings JavaScript strings are used for storing and manipulating text. A JavaScript string is zero or more characters written inside quotes. Single or double quotes can be used. Quotes can be used inside a string, as long as they don't match the quotes surrounding the string. Example: String Length To find the length of a string, use the built-in length property. The length property returns the length of a string. Example: Escape Character The backslash (\) escape character turns special characters into string characters: Code Result Description \' ' Single quote \" " Double quote \\ \ Backslash The sequence \" inserts a double quote in a string: Example: Six other escape sequences are valid in JavaScript: Code Result \b Backspace \f Form Feed \n New Line \r Carriage Return \t Horizontal Tabulator \v Vertical Tabulator Note:- The 6 escape characters above were originally designed to control typewriters, teletypes, and fax machines. They do not make any sense in HTML.
- JavaScript Tutorial Part 1
JavaScript JavaScript is the programming language of HTML and the Web. It is a very powerful client-side language. JavaScript is mainly used for enhancing the interaction of a user with the webpage. JavaScript is also being used in game development and Mobile application development. As JavaScript is a scripting language it can not run on its own. The browser is responsible for running JavaScript code. JavaScript is compatible with all new web browsers, like Internet Explorer, Google Chrome, Firefox, etc. Also it can run on any operating system including Windows, Linux or Mac. Why Study JavaScript? JavaScript is one of the 3 languages all web developers must learn: HTML to define the content of web pages CSS to specify the layout of web pages JavaScript to program the behavior of web pages The In HTML, JavaScript code must be inserted between tags. Example: z JavaScript Functions and Events A JavaScript function is a block of JavaScript code, that can be executed when "called" for. For example, a function can be called when an event occurs, like when the user clicks a button. You will learn much more about functions and events in later chapters. JavaScript in or Any number of scripts can be placed inside a HTML Page. Scripts can be placed in the , or in the section of an HTML page, or in both. JavaScript in Here, a JavaScript function is placed in the section of an HTML page. The function is invoked (called) when the button is clicked. Example: JavaScript in Here, a JavaScript function is placed in the section of an HTML page. The function is invoked (called) when a button is clicked. Example: Placing scripts at the bottom of the element improves the display speed, because script interpretation slows down the display. External JavaScript Scripts can also be placed in external files: External file: myScript.js function myFunction() { document.getElementById("demo").innerHTML = "Paragraph changed."; } External scripts are practical when the same code is used in many different web pages. JavaScript files have the file extension .js. To use an external script, put the name of the script file in the src source) attribute of a External References External scripts can be referenced with a full URL or with a path relative to the current web page. This example uses a full URL to link to a script. Example: JavaScript Output JavaScript Output defines the ways to display the output of a given code . JavaScript Display Possibilities JavaScript can "display" data in different ways: Writing into an HTML element, using innerHTML. Writing into the HTML output using document.write(). Writing into an alert box, using window.alert(). Writing into the browser console, using console.log(). Using innerHTML To access an HTML element, JavaScript can use the document.getElementById() method. The id attribute defines the HTML element. The innerHTML property defines the HTML content: Example: Changing the innerHTML property of an HTML element is a common way to display data in HTML. Using document.write() For testing purposes, it is convenient to use document.write(). Example: Note:- Using document.write() after an HTML document is loaded, will delete all existing HTML. The document.write() method should only be used for testing. Using window.alert() You can use an alert box to display data: Example: Using console.log() For debugging purposes, you can use the console.log() method to display data. Example: JavaScript Statements The programming instruction written in a program in a programming language are known as statements. Example: JavaScript Programs A computer program is a list of "instructions" to be "executed" by a computer. In a programming language, these programming instructions are called statements. A JavaScript program is a list of programming statements. In HTML, JavaScript programs are executed by the web browsers. JavaScript Statements JavaScript statements are composed of: Values Operators Expressions Keywords and Comments This statement tells the browser to write "I am a statement." inside an HTML element with id="demo": Example: Most JavaScript programs contain many JavaScript statements. The statements are executed, one by one, in the same order as they are written. Note:- JavaScript programs and JavaScript statements are often called JavaScript code. Semicolons ( ; ) Semicolons separate JavaScript statements. Add a semicolon at the end of each executable statement. Example: Note:- When separated by semicolons, multiple statements on one line are allowed. Ending statements with semicolon is not required, but highly recommended. JavaScript White Space JavaScript ignores multiple spaces. So white space can be added to script to make it more readable. The following lines are equivalent: var person = "Here"; var person="Here"; It is usually considered to put spaces around operators ( = + - * / ): var x = y + z; JavaScript Line Length and Line Breaks For best readability, programmers often like to avoid code lines longer than 80 characters. If a JavaScript statement does not fit on one line, the best place to break it is after an operator or a comma. Example: JavaScript Code Blocks JavaScript statements can be grouped together in code blocks, inside curly brackets {...}. The purpose of code blocks is to define statements to be executed together. In JavaScript functions the statements are grouped together in blocks. Example: JavaScript Keywords JavaScript statements often start with a keyword to identify the JavaScript action to be performed. Keyword Description break Terminates a switch or a loop continue Jumps out of a loop and starts at the top debugger Stops the execution of JavaScript, and calls (if available) the debugging function do ... while Executes a block of statements, and repeats the block, while a condition is true for Marks a block of statements to be executed, as long as a condition is true function Declares a function if ... else Marks a block of statements to be executed, depending on a condition return Exits a function switch Marks a block of statements to be executed, depending on different cases try ... catch Implements error handling to a block of statements var Declares a variable Note:- JavaScript keywords are reserved words. Reserved words cannot be used as names for variables JavaScript Syntax JavaScript is the lightweight and dynamic computer programming language. It is used to create client side dynamic pages. It is open source and cross-platform language. JavaScript syntax is the set of rules, how JavaScript programs are constructed: var a, b, c; // How to declare variables a = 10; b = 2; // How to assign values c = a * b; // How to compute values JavaScript Values The JavaScript syntax defines two types of values: Fixed values and variable values. Fixed values are called literals. Variable values are called variables. JavaScript Literals The most important rules for writing fixed values are: 1. Numbers are written with or without decimals. 2. Strings are text, written within double or single quotes: JavaScript Variables In a programming language, variables are used to store data values. JavaScript uses the var keyword to declare variables. An equal sign is used to assign values to variables. JavaScript Operators JavaScript uses arithmetic operators ( + ), ( - ), ( * ), ( / ) to compute values: ( 10 + 2 ) * 5 JavaScript uses an assignment operator ( = ) to assign values to variables: var a, b; a = 10; b = 2; JavaScript Expressions An expression is a combination of values, variables, and operators, which computes to a value. The computation is called an evaluation. Example: JavaScript Keywords JavaScript keywords are used to identify actions to be performed. The var keyword tells the browser to create variables. Example: JavaScript Comments Not all JavaScript statements are "executed". Code after double slashes // or between /* and */ is treated as a comment. Comments are ignored, and will not be executed: JavaScript is Case Sensitive All JavaScript identifiers are case sensitive. The variables Name and name are two different variables. Example: Note:- JavaScript does not interpret VAR or Var as the keyword var. JavaScript and Camel Case Historically, programmers have used different ways of joining multiple words into one variable name: 1. Hyphens: first-name, last-name, master-card, inter-city. Note:- Hyphens are not allowed in JavaScript. They are reserved for subtractions. 2. Underscore: first_name, last_name, master_card, inter_city. 3. Upper Camel Case (Pascal Case): FirstName, LastName, MasterCard, InterCity. 4. Lower Camel Case: JavaScript programmers tend to use camel case that starts with a lowercase letter: firstName, lastName, masterCard, interCity. If you like Codersarts blog and looking for Assignment help, Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in comment section below if you find anything incorrect in this blog post.
- HTML Forms Templates using CSS
HTML Form Templates An HTML Form is a document which stores information of a user on a web server using interactive controls. It is a section of a document containing form elements. Form elements are various types of input elements, such as text fields, checkboxes, radio buttons, submit buttons, labels and so on. The HTML tag is used for declaring a form. This tag comes in pairs. The special elements which are called controls are written between opening () and closing () tags. The following form elements are used to create a form: <button> <select> <option> <fieldset> <label> Here you can find a collection of various kinds of forms which are created using only HTML and CSS. The below forms are free to use, you have to copy the code and can paste in any local editor to run it. HTML Forms Examples: 1. HTML Enquiry Form using CSS 2. HTML Message Sending Form using CSS 3. HTML Registration Form using CSS 4. HTML Form using CSS 5. HTML Login Form using CSS 6. HTML Sign-up or Sign-In with Social Network using CSS 7. HTML Payment Form using CSS If you like Codersarts blog and looking for Assignment help, Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in comment section below if you find anything incorrect in this blog post.
- What is Hibernate : Java Programming Help
Hibernate is one of the best ORM framework available for java ORM : Object Relation Mapping If you think about this software world. WE HAVE SOFTWARES and data . The main thing is data . May be we want to access,save,modify to do that we write an application. That application can be written in any lang : C#, java, Python and if you work with the lang .and you want to connect them with the help of the database then we need connector that can be implemented with the help of JDBC So you as a programmer you have to write the application if you are using java then you have to thing in terms of object. And in other hand we have table is database and we write sql queries. What happen if you don’t have to write SQL queries that where the ORM framework is famous so based on your classes based on your how many object you have created it will define your table and data. Prerequisites of Hibernate : You should be know 1 thing 1: java 2: Sql Concepts We have to know how to connect them Hibernate theory: Hibernate is ORM tools to persist the data. Let me give the example : like we are living the real world and we are dealing with the real life software and we can build the software with the help of any lang. one of the lang we use to develop is java.when you make any software then that software is working on data. Now the data can be any variable(int,float) any objects(Students, Employee) Suppose we are creating 1 class Class Student{ Int id; String name; } And when we create any object of this class then it will be having two values and I wanna make sure that those value get stored somewhere(Mysql,Oracle) Concept of store the data into tha database it s persistent . Varaible in the class is transient e normally we don’t store the data into the databse .we use JDBC to connect our application to the database. But java developer is not comfortable with sql lang to work on databse we must know the sql lang . so here solution is that Hibernate. How to develop project for hibernate or maven 1 ) By the help of maven you can create open eclipse->new > maven project->internal(select quick start maven1.1) then give name of your project and then next 2 ) Now open any browser type mvnrepositry.com Type over there hibernate and search for it and now copy the dependencies and then paste into the porm.xml file and now you have 2 use mysql connector as well. And 1 more thing to work in hibernate there is configuration file of hibernate is also use so for that you have to install 1 software Go to eclipse marketplace and now type there hibernate and you will see Now your project sturcutre is ready; Now create 1 Pojo class I have created student class Student.java package com.codersarts.DemoHib; import javax.persistence.Entity; import javax.persistence.Id; @Entity public class Student { @Id private String id; private String name; private String contact; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getContact() { return contact; } public void setContact(String contact) { this.contact = contact; } } App.java package com.codersarts.DemoHib; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; import org.hibernate.service.ServiceRegistry; import org.hibernate.service.ServiceRegistryBuilder; /** * Hello world! * */ public class App { public static void main( String[] args ) { Student stu1 = new Student(); stu1.setId("01"); stu1.setName("Ankit"); stu1.setContact("8247666541"); Configuration con = new Configuration().configure().addAnnotatedClass(Student.class); ServiceRegistry reg = new ServiceRegistryBuilder().applySettings(con.getProperties()).buildServiceRegistry(); SessionFactory sf = con.buildSessionFactory(reg); Session session = sf.openSession(); Transaction tx = session.beginTransaction(); session.save(stu1); tx.commit(); } } Hibernate.cfg.xml org.postgresql.Driver coder jdbc:postgresql://localhost:5432/customer postgres org.hibernate.dialect.PostgreSQLDialect update We should use here update because whn we use ceate here then every time new Table will created and prvious one will be deleted And when we use update the it first check if the table is exist or not if not then it created first time after that it updated in that table. How to configure hibernate.cfg.xml file? Here I am using postgres SQL So I am providing detail so postgres like that. Right click on project and go to on the and the hibernate click here to download the pdf file here
- C++ Coding Help: Project and Assignment Help
C++ Program which includes inheritance, overloaded addition, subtraction, comparison, input, and output operators for Currency, polymorphic construction of Currency objects in the Wallets, Overloaded subscripts in Wallet and in clear and intuitive user interactivity. If you like Codersarts blog and looking for C++ Programming Assignment Help Service, Database Development Service, C++ Coding Help, C++ Project Help, Hire Software Developer, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in the comment section below if you find anything incorrect in this blog post
- Appointment Scheduler - Java GUI or Java Project Help
Program Description This application will allow the user to store and retrieve appointment information from a scheduler. The scheduler is (at present) very general, and could potentially be used to book an appointment for anything, e.g. logging appointments in a dentist’s office, scheduling a meeting with a boss about a project, or booking an appointment to have a muffler replaced. Regardless of the nature of the meeting, each appointment will need the following information: 1. The name of the person/client booked 2. The client’s phone number 3. The date and time of the meeting 4. (Optionally) Information about the activity involved. In the last category, if the appointment was with a dentist, the activity could be something like “Cavity”, “New crown”, “New filling”, “Root canal”, “Cleaning and plaque removal”, etc. If it’s a meeting with your boss, the activity could be “Discuss performance evaluation”, “Progress on Project”, “Software update issues”, “Budget considerations”, etc.—the actual nature of the activity will vary depending on the context in which the scheduler is used. In this first assignment, the Scheduler object stores an array of Appointment objects, and each appointment stores the four pieces of information indicated above. Note that we consider each appointment to be exactly 1 hour long to avoid complicating the code too much for now. Furthermore, our company is only open from 8 a.m. to 5 p.m., limiting each day to nine appointments maximum, with the last appointment starting at 4 p.m...more on this shortly. Appointments are located by looping through the Appointments array up to the last Appointment loaded, searching each appointment by its date and time until the desired Appointment object is found. This can also be used to display a daily schedule of all appointments. But in the present version of the program, appointments cannot be deleted (yet), nor can the array be sorted (yet); these and other features will be added to the software in the next iteration of the program. I. Load the Project, package, and classes a. In Eclipse, add a new project called CST8284_19F_Assignment1. To this project add a package called cst8284.asgt1.scheduler. Then, following the UML diagram below, add each of the five classes indicated to the package. b. Before you proceed to the details of each class in Section II, note the following ‘rules’ about this assignment, which must be strictly adhered to: i. Follow the UML diagram exactly as it is written, according to the most up-to-date version of this document. You cannot add members that are not written in the UML diagram, nor can you neglect any of them either—and this applies to features that don’t appear to have any use in your code (and on this note, be sure to see the next item). If it’s written in the UML, it’s not optional: write the code you’re directed to write, or marks will be deducted. And if you want to get creative with the requirements, feel free to do so. But do so on your own time, and do not submit your ‘improved’ version and expect to get marks for it. In short: if you hand in an assignment that differs in any way from the UML, you will lose marks. ii. Aside from some of the getters and setters used in the smaller classes, all methods indicated in the UML are expected to be put to use in your code. So if there’s a method that’s required in the UML and you’re not using it, you’re probably missing something, and your code is not being used correctly—and you will lose marks. Take the UML as an indication not just of what needs to be coded, but of how the code is to be connected in a well-written, optimized application (given the rather limited requirements of this assignment). So if you can’t figure out where certain features (such as the private static final constants declared in the Scheduler class) will be used in code, think first, then ask if you’re stuck: these things exist for a reason. iii. Employ best practices at all times: reuse code, don’t copy and paste; don’t declare variables unnecessarily; keep your code to the minimum needed to ensure the program functions reliably, and avoid over coding your application; only setters and getters talk directly to private fields, everything else uses public setters and getters; chain overloaded constructors and methods. Note that this last item applies, e.g. between the toString() method used by the Appointment class and the toString() methods used in its composite members, such as TelephoneNumber and Activity. Additional information on the expectations for this project is included at the end of this document under ‘III. Notes, Suggestions, Tips, and Warnings.’ II. Write the code indicated for each class As seen in the UML diagram below, five classes will be needed in this application: Scheduler, SchedulerLauncher, Appointment, TelephoneNumber, and Activity. Additionally, you’ll be making heavy use of Oracle’s Calendar class, which holds the date and time of each appointment. Information on this class is available at several sites, but the following contains useful examples for those unfamiliar with this class; it’s probably the best way to get started with Calendar. See: https://www.geeksforgeeks.org/calendar-class-in- java-with-examples/ As always, be sure to cite any websites you used during the construction of your application. Regarding the five classes you’ll be coding: there are a few general ideas to keep in mind as you proceed (specific details on each class are included afterward). Some of these comments are most obvious from the UML diagram, but a few things can only be inferred by careful examination: First: Only the Scheduler class handles the input and output of information. You should not have, nor need to use, Scanner in any other class. And the same goes for outputting Strings: only Scheduler handles I/O. Other classes than Scheduler may store String data, but all access to these Strings is made via the appropriate methods for that class, such as toString(). Second: We assume, for now, that the user of our application is well-behaved and will not be entering any bad data—an assumption we’ll overturn in a later assignment. But at this point, there’s no need to check the validity of the data; we’ll be doing this in the setters at some later date. Third: once you’ve instantiated a new Appointment object and saved it to the appointments array in the save appointmentsToArray() method, remember that everything goes through setters and getters from this point onward. For example: getAppointments[getAptIndex()]. getTelephoneNumber().toString() returns a String version of the telephone number belonging to the Appointment object stored in the appointments array having the index value returned by getAptIndex(). (Note that ‘Apt’ is used as shorthand for ‘Appointment’ in some of the member names.) Detailed descriptions of each of the five classes used in this application follow. a) Each instance of an Appointment class is characterized by the five properties indicated in the UML diagram for that class: the first and last name Strings; a Calendar to store the date and time of the appointment; the contactee’s telephone number; and the Activity, which can be used to store, at a minimum, a description of what the appointment is about. As indicated in the UML diagram for Appointment, you must write getters and setters for each of these five fields, the latter of which should be used when saving values in the constructors (which should, in turn, be chained). As indicated above, note that the Appointment toString() method will need to call upon the toString()’s of Calendar, TelephoneNumber, and Activity, along with the getters for the first and last names, and use these strings to construct the string used in outputting Appointment information to the console. Aside from these features, the code for the Appointment class is straightforward, since an Appointment object mostly just holds the information; by itself, it doesn’t need to do much. The Activity class is similarly boring; we’ll put it to better use in a later assignment. For now, just write simple getters and setters as indicated in the UML. Activity’s toString() should call on the getActivity() method to obtain its output String. The TelephoneNumber class is slightly livelier. The components of a phone number are (1) its area code, (2) its prefix, and (3) it’s line number—roughly stated, the first, second and third fields in a String like “613-555-1212”. The constructor takes in a String in this form and parses it into its three fields, using the appropriate setters for storage. As indicated in the sample output at the end of this document, toString() should return a String in the form “(613) 555-1212” b) SchedulerLauncher is the main point of entry for this program, hence it will contain the main() method. It has only one purpose, to launch the application by first instantiating a new Scheduler object, and then calling its launch() method—that’s all. c) As noted above, Scheduler handles all the I/O for this application, as well as storing instantiated Appointment objects to the appointments array. The aforementioned launch() method displays the menu to the user and executes the result of the user’s selection. Note that its operation will call on two methods, displayMenu() and executeMenuItem(). This makes testing easier and has the added benefit that it will allow for a smoother transition to a GUI interface later in the semester. As indicated in the sample output below, your program should loop through inside launch() until the user selects the EXIT value to quit the application. Note the four fixed constants SAVE_APPOINTMENT, DISPLAY_SCHEDULE, DISPLAY_APPOINTMENT, and EXIT. These should be used in your code to ease readability, particularly in the switch() statement that determines which action to execute based on the menu presented to the user. 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- Data Analytics: Data Science Project Help
This assessment uses data from the United States Social Security Administration (SSA) which contains names of babies born between 1990 and 2010. The objectives of this assessment are as follows: (1) visualize the total male and female babies over time, (2) tabulate the most and least popular baby names, and (3) analyze trends in names. You are provided with a file “DATA(1990-2010).csv’ which contains information such as name, sex, the total number and the year of births. Using this file, your tasks are as follows: Task 1: Create a pivot table of total births by sex and year and then plot them (Figure 1). Task 2: Calculate the total births over the sample period by grouping the data by name and sex. Subset the group into male and female. Using these subsets, select the top and bottom 3 male and female names. In total, you should have 12 names in total. Report them in a single table (Table 1). Task 3: Using the top male and female names (two names in total), check their trends over time, i.e. plot the total births with these names from 1990 to 2010 (Figure 2). In order to do this, you would first need to create a pivot table. After completing the above tasks, you should have two figures and one table in total. Make a written report of these findings. Your Python script is to be attached in the Appendix of the report. Instructions: 1. You are to conduct analyses on the dataset provided and translate it into a written report. 2. 10% of your marks will be based on the Python script and another 10% from the report that you wrote. 3. The report uses font type: Times New Roman (12pt & 1.5 spacing) and must not exceed three pages. 4. Submit both your Python script and written report to Blackboard before the due date. If you like Codersarts blog and looking for Programming Assignment Help Service, Machine learning Assignment or project Help, Database Development Service, Web development service, Mobile App Development, Project help, Hire Software Developer, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in the comment section below if you find anything incorrect in this blog post.
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- HTML Tutorial Part-4
HTML File Paths Path Description photo.jpg is located in the same folder as the current page photo.jpg is located in the images folder in the current folder photo.jpg is located in the images folder at the root of the current web photo.jpg is located in the folder one level up from the current folder HTML File Paths A file path describes the location of a file in a web site's folder structure. When linking to external files, file paths are used: Web pages Images Style sheets JavaScripts. Absolute File Paths An absolute file path defines the full URL address to an internet file. Example: Relative File Paths A relative file path points to a file relative to the current page. Example: HTML Head The HTML Element The element is a container for metadata (data about data) and is placed between the tag and the tag. HTML metadata is data about the HTML document. Metadata is not displayed. Metadata typically define the document title, character set, styles, scripts, and other meta information. The following tags describe metadata:
- Party Invitation - HTML and CSS Assignment Help
Here, we will attached some screenshot of assignment so you can easily understand it, and try to write own code as per given screenshots and if face some difficulties to do this then contact us and get instantly help by codersarts. First create Home page with menu bar: About page: After this creating Invite page which is look like that When we click on Submit invite it show invitation form which is send to your friends: If you like Codersarts blog and looking for Assignment help,Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in comment section below if you find anything incorrect in this blog post









