Home/ Questions/Q 8893899
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-14T23:21:47+00:00

class MyObject { static int instanceCounter = 0; static int counter = 0; MyObject()

  • 0
class MyObject {

static int instanceCounter = 0;

static int counter = 0;

MyObject() {

instanceCounter++;

counter = counter + 1;

}

}

I am using the static ints to get this output:

Value of instanceCounter for Object 1: 5

Value of instanceCounter for MyObject: 5

Value of Counter for Object 1: 1

Value of Counter for Object 2: 2

Value of Counter for Object 3: 3

Value of Counter for Object 4: 4

Value of Counter for Object 5: 5

but its displaying

Value of instanceCounter for Object 1: 5

Value of instanceCounter for MyObject: 5

Value of Counter for Object 1: 5

Value of Counter for Object 2: 5

Value of Counter for Object 3: 5

Value of Counter for Object 4: 5

Value of Counter for Object 5: 5

my runner class

class RunMyObject {

public static void main(String[] args) {

MyObject Object1 = new MyObject();

MyObject Object2 = new MyObject();

MyObject Object3 = new MyObject();

MyObject Object4 = new MyObject();


MyObject Object5 = new MyObject();

System.out.println(“Value of instanceCounter for Object 1: ” + Object1.instanceCounter);

System.out.println(“Value of instanceCounter for MyObject: ” + MyObject.instanceCounter);

System.out.println(“Value of Counter for Object 1: ” + Object1.counter);

System.out.println(“Value of Counter for Object 2: ” + Object2.counter);

System.out.println(“Value of Counter for Object 3: ” + Object3.counter);

System.out.println(“Value of Counter for Object 4: ” + Object4.counter);

System.out.println(“Value of Counter for Object 5: ” + Object5.counter);

}

}

and if i remove static this is what it displays

Value of instanceCounter for Object 1: 5

Value of instanceCounter for MyObject: 5

Value of Counter for Object 1: 1

Value of Counter for Object 2: 1

Value of Counter for Object 3: 1

Value of Counter for Object 4: 1

Value of Counter for Object 5: 1

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Since instanceCounter is a static variable, all objects share the same variable. Since you are incrementing the instanceCounter during each object construction, at the end of creating 5 objects, its value is 5.
    Consequently you get the output as 5 in all your sys outs. Thats the point of static

    EDIT
    To achieve what you need, do the following: 

    class MyObject  {

    static int instanceCounter = 0;

    int counter = 0;

    MyObject() 
    {
        instanceCounter++;
        counter = instanceCounter;
    }

}
    • 0