Create a function that takes a value as an argument and returns the type of this value. You should get the real type of a value (JavaScript typeof doesn't return the real object type of values and you need to fix that). Examples realType (1) → "number" realType("a") "string" realType(true) realType([]) "array" realType(null) - - "boolean" - "null"

Create a function that takes a value as an argument and returns the type of this value. You should get the real type of a value (JavaScript typeof doesn't return the real object type of values and you need to fix that). Examples realType (1) → "number" realType("a") "string" realType(true) realType([]) "array" realType(null) - - "boolean" - "null"

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 14RQ

See similar textbooks

Similar questions

Computer Science You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date d, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email and ArrayList of Messages provide getters/setters, constructors, toString addMessage(Message m) method which will add new message to the list. Provide following options to the user using JFrame. Login which will help user login to the application. View Friends (Display List of All Friends) View Messages ( This should display all message of a Friend) Send message (This should ask for friend name and message match the friend name and write that message to the array list).
Using JAVASCRIPT write an object prototype for a Person that has a name and age, has a printInfo method, and also has a method that increments the persons age by 1 each time the method is called. Create two people using the 'new' keyword, and print both of their infos and increment one persons age by 3 years. Use an arrow function for both methods */ // Create our Person Prototype // Use an arrow to create the printInfo method // Create another arrow function for the addAge method that takes a single parameter // Adding to the age
Create an object prototype called Gradebook that will pass an array of grades for a student as a parameter. - Create a boolean in Gradebook madeHonourRoll that will check whether or not the student has made honour roll - Create a function within Gradebook, that will calculate the average of the grades passed - Create a function outside of Gradebook, that will check if the grades are over an 80% average. Return madeHonourRoll as true if the student has made over 80% average. - Create a function outside Gradebook, called toString(), that will output to console whether or not the student has made the honour roll.
1. Dummy GUI Application by Codechum Admin A GUI Application is an application that has a user interface that the user can interact with. For this program, we will be simulating this behavior. First, implement another class called Checkbox which implements the Clickable interface which has only one method: public void click(). The Checkbox will have the following properties: private boolean isChecked (defaults to false upon the creation of object) private String text Additionally, it should have the following methods: the implementation of the click() method If the isChecked is currently false, this will set the isChecked to true and will then print the message "Checkbox is checked". If it is currently true, this will set the isChecked to false and will then print the message "Checkbox is unchecked". Note that the messages to be printed should have also print a new line at the end. an override of the toString() method which returns the message: "Checkbox ({text} - Clicked…
Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…
For each object class include the following: displayPromotion () method which can be used to display the following messages:Video Game: Only certain of video game will be getting 10% discount.Sport Game: Booking court on week days will be getting 15% discount.Overridden toString() method that returns a string containing all the data fields’values.(photo 111) Write a driver program that uses a polymorphic array to store information for various video games and sport games. Use an array initializer to initialize the array with values. Then, display a list with all the game information. A sample output is provided below:(photo 112)
A class object can encapsulate more than one [answer].
question in javascript Create an object prototype called Gradebook that will pass an array of grades for a student as a parameter. - Create a boolean in Gradebook madeHonourRoll that will check whether or not the student has made honour roll - Create a function within Gradebook, that will calculate the average of the grades passed - Create a function outside of Gradebook, that will check if the grades are over an 80% average. Return madeHonourRoll as true if the student has made over 80% average. - Create a function outside Gradebook, called toString(), that will output to console whether or not the student has made the honour roll.
CODE IN JAVA Please look at the attached image for the information about the format the code should be in The code should be in two different .java files one with getFirstName, getLastName and getZipCode; the other file would be containing the main method Design and implement an application that reads a sequence of up to 25 pairs of names and postal (zip) codes for individuals. Store the data in an object of a class called “NameAndZip”, designed to store a first name (String), last name (String), and a postal code (int). Create a driver class called “NameAndZipList”. Assume that each line of input will contain two strings followed by an integer value. You will then create an object for each line read in and store that object in an array of NameAndZip objects. After the Names and Codes have been entered, print the list in an appropriate format to the screen using the toString method in the NameAndZip class. To test the program enter 3 names and codes.
JAVA Include Code Comments create a public class named ArrayUtility In ArrayUtility class, create a public static method toString that receives an array of int's, a start string, a separator string and an end string. It returns a String starting with the start string, followed by the array elements separated by the separator and ending with the end string. create a public class named ArrayUtilityTest In ArrayUtilityTest class, create a public static method toStringTest that prints the results for the following 5 lengths of arrays, using different types of brackets and separators for each: empty, singleton, two elements, 5 elements and 20 elements. Call only this class in the main method and check the results. In ArrayUtility class, create a public static method equals that receives two arrays of int's and returns true if they have the same length and equal corresponding elements. In ArrayUtilityTest class, create a public static method equalsTest that prints the results for the…
public class StairViewer public static void main(String(] args) // Step 2: Create a rectangle and draw it as the // top step of the stair // location: (20, 10) // size: (20, 20) 18 // Step 3: Create a rectangle and draw it as the 19 // middle step of the stair 20 // location: below the top step, aligned on left // size: (40, 20) 21 22 23 24 // Step 4: Create a rectangle and draw it as the 25 // bottom step of the stair 26 // location: below the middle step, aligned on left // size: (60, 20) 27 28 29 30 } 31 32
9 public class PictureViewer 10{ public static void main(String[] args) 11 12 // Step 2: Fix the syntax errors and submit it to Codecheck to pass the test. // Note: Do not add or remove any statements 13 // 14 15 // Do not change the semantics of each statement Do not add or remove any variables Do not add or remove any objects Magic numbers are allowed 16 17 18 // 19 // 20 // Create an object of Picture by loading an image Picture pic = Picture("starry_night.png"); 21 22 23 // Display the width and height System.out.println("Width : " + pic.getWidth()); System.out.println("Height: 24 25 + pic.getHeight()); %3D 26 27 // Increase the width by 50 on both sides and // increase the height by 40 on both sides. // Must use dw and dh when calling method grow(). int dw, dh = 40; pic.grow(dw, dh); 28 29 30 31 32 33 // Display the width and height System.out.println("Width : System.out.println("Height: 34 + pic.getWidth()); + pic.getHeight()); 35 36 37 // Draw the picture draw(); 38 39 40 //…