IN JAVA What is output? Item jar = new Item(); Item ball = new Item(); System.out.println(Item.count); public class Item{ public static int count = 1; public Item(){ count++; } }
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IN JAVA
What is output?
Item ball = new Item();
System.out.println(Item.count);
public static int count = 1;
public Item(){
count++;
}
}
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- Java Program What is the output of this problemcomplete the missing code. public class Exercise09_04Extra { public static void main(String[] args) { SimpleTime time = new SimpleTime(); time.hour = 2; time.minute = 3; time.second = 4; System.out.println("Hour: " + time.hour + " Minute: " + time.minute + " Second: " + time.second); } } class SimpleTime { // Complete the code to declare the data fields hour, // minute, and second of the int type }package citytech.calculator; public class Calculator { public static void main(String[]args) { System.out.println("Basic Calculator"); //declaring variable: //dataType variableName = value ; double num1 = 10.0; double num2 = 30.0; sum(num1, num2); multiply(num1, num2); } public static void sum(double n1, double n2) { double result = n1 + n2; System.out.println("Sum: "+result); } public static void multiply(double n1, double n2) { double result = n1 * n2; System.out.println("Multiply: "+result); } } Question: Please Check the Calculator app and add subtract and division methods
- Java true or false: The method public boolean simpleMethod() { return true; } is a valid mutator?public class Animal { public static int population; private int age; } public Animal (int age) { this.age = age; population++; } + msg); public void say (String msg) { System.out.print("Saying: " System.out.print(" for "); System.out.print(getHuman Years()); System.out.println(" years."); } public int getHuman Years() { return age; } public class Mammal extends Animal { private String species; public Mammal(String species, int age) { super (age); this. species species; } } } = public int getHuman Years() { if (species.equals("dog")) 1 else return super.getHumanYears() * 7; return super.getHumanYears(); €// This class discounts prices by 10% public class DebugFour4 { public static void main(String args[]) { final double DISCOUNT_RATE = 0.90; int price = 100; double price2 = 100.00; tenPercentOff(price DISCOUNT_RATE); tenPercentOff(price2 DISCOUNT_RATE); } public static void tenPercentOff(int p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println("Ten percent off " + p); System.out.println(" New price is " + newPrice); } public static void tenPercentOff(double p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println"Ten percent off " + p); System.out.println(" New price is " + newprice); } }
- 8) Now use the Rectangle class to complete the following tasks: - Create another object of the Rectangle class named box2 with a width of 100 and height of 50. Note that we are not specifying the x and y position for this Rectangle object. Hint: look at the different constructors) Display the properties of box2 (same as step 7 above). - Call the proper method to move box1 to a new location with x of 20, and y of 20. Call the proper method to change box2's dimension to have a width of 50 and a height of 30. Display the properties of box1 and box2. - Call the proper method to find the smallest intersection of box1 and box2 and store it in reference variable box3. - Calculate and display the area of box3. Hint: call proper methods to get the values of width and height of box3 before calculating the area. Display the properties of box3. 9) Sample output of the program is as follow: Output - 1213 Module2 (run) x run: box1: java.awt. Rectangle [x=10, y=10,width=40,height=30] box2: java.awt.…In C# using System; using static System.Console; using System.Globalization; class JobDemo4 { static void Main() { RushJob[] jobs = new RushJob[5]; int x, y; double grandTotal = 0; bool goodNum; for(x = 0 ; x < jobs.Length; ++x) { jobs[x] = new RushJob(); Write("Enter job number "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } while(!goodNum) { Write("Sorry, the job number " + jobs[x].JobNumber + " is a duplicate. " + "\nPlease reenter "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } }…FIX THE CODE PROVIDED BELOW Part 2 - Syntax Errors and Troubleshooting The code below has many syntax (and other) errors. Tasks:Compile the code and fix the errors one at a time. // Lab1a.java // This short class has several bugs for practice. // Authors: Carol Zander, Rob Nash, Clark Olson, you public class Lab1a { public static void main(String[] args) { compareNumbers(); calculateDist(); } publicstatic void compareNumbers() { int firstNum = 5; int secondNum; System.out.println( "Sum is: + firstNum + secondNum ); System.out.println( "Difference is: " + (firstNum - secondNum ); System.out.println( "Product is: " + firstNun * secondNum ); } public static void calculateDistance() { int velocity = 10; //miles-per-hour int time = 2, //hoursint distance = velocity * timeSystem.out.println( "Total distance is: " distanace); } } Part 3 - Print Statements and Simple Methods Use "print" and "println" statements, but use method calls to reduce the number of repeated "print"and "println"…
- Here is the class MyBookShelfTester public class MyBookShelfTester {public static void main(String[] args) {MyBookShelf bookShelf = new MyBookShelf(); Book book1 = new Book("Diaspora", "Greg Egan");Book book2 = new Book("What if?", "Randall Munroe");Book book3 = new Book("Foundation", "Isaac Asimov");Book book4 = new Book("Solaris", "Stanislaw Lem");Book book5 = new Book("The Hitchhiker's Guide to the Galaxy", "Douglas Adams"); bookShelf.addCount(book1);bookShelf.addBook(book2);bookShelf.addBook(book3);bookShelf.addBook(book4);bookShelf.addBook(book5); book1.addRating(5);book1.addRating(5);book1.addRating(4);book1.addRating(4); book5.addRating(5);book5.addRating(5);book5.addRating(4); book4.addRating(5);book4.addRating(5); book1.checkOut();book2.checkOut();book3.checkOut();book4.checkOut();book5.checkOut(); book1.returnToLibrary();book2.returnToLibrary();book3.returnToLibrary();book4.returnToLibrary();book5.returnToLibrary(); Book diaspora = bookShelf.getBookByTitle("Diaspora");Book…// Simulates a simple car with operations to drive and check the odometer.public class SimpleCar { // Number of miles driven private int miles; public SimpleCar(){ miles = 0; } public void drive(int dist){ miles = miles + dist; } public void reverse(int dist){ miles = miles - dist; } public int getOdometer(){ return miles; } public void honkHorn(){ System.out.println("beep beep"); } public void report(){ System.out.println("Car has driven: " + miles + " miles"); } }package go; package demo; public class Pokemon { import ; // import Pokemon class (#1) private int hitPoints; static int population; public class Main { public static void main(String[] args) { void attack() { // implementation this.evolve(); } public void evolve() { // implementation } } Pokemon pika = new Pokemon(); pika.hitPoints = 30; (#2) System.out.print(Pokemon.population);(#3) pika.attack(); (#4) pika.evolve(); (#5) } 1. How can we retrieve the value of hitPoints without allowing any other class to change its value? a) Change the access modifier of bitPoints to public b) Change the access modifier of hitPoints to default c) Make the hitPoints a static attribute d) Declare a new public method, say şetHitPoints(int value), that sets the value of hitPoints e) None of the above
