write a java program to describe instance variable.

class test
{
	int roll_no; //instance_variable
}
class instance_variable
{
	public static void main(String a[])
	{
		test obj1= new test(); //create object of test class 
		test obj2= new test();
		obj1.roll_no=10;
		obj2.roll_no=20;
		System.out.println("roll_no of object1="+obj1.roll_no);
		System.out.println("roll_no of object2="+obj2.roll_no);
	}
}

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