Q Consider the following class public class IdentifyMyParts

Q. Consider the following class:

public class IdentifyMyParts

{

private int x = 7;

private int y = 3;

}

a. What are the instance variables?

b. What is the output from the following code:

IdentifyMyParts a = new IdentifyMyParts();

IdentifyMyParts b = new IdentifyMyParts();

a.y = 5;

b.y = 6;

a.x = 1;

b.x = 2;

System.out.println(\"a.y = \" + a.y);

System.out.println(\"b.y = \" + b.y);

System.out.println(\"a.x = \" + a.x);

System.out.println(\"b.x = \" + b.x);

I need the answer to be compied to Word not a picture.

Solution

a) The instance variable is y

b) The output of the following above code is

a.y = 5

b.y = 6

a.x = 2

b.x = 2

IdentifyMyParts.x = 2

Here in the program x is defined as a public static int in the class IdentifyMyParts, every reference to x will have the value that was last assigned because x is a static variable (and therefore a class variable) shared across all instances of the class. That is, there is only one x: when the value of x changes in any instance it affects the value of x for all instances of IdentifyMyParts.