How many objects?

[Shiva Mohan]

int[][] i=new int[1][2];//total 4 objects are created

int[][] i=new int[2][2];//total 7 objects are created

Am i correct? is there anyway to find out how many objects are created in coding way?Please help.

[Anton Uwe]

Mhhh, in my opinion the following is correct:

A) int[][] i=new int[1][2]; // will create 2 Objects

B) int[][] i=new int[2][2]; // will create 3 Objects


In A) the first object is referenced by "i", the second by "i[0]".
In B) the first is ref. by "i", second and third by "i[0]" and "i[1]".


Edit. Added comment.
[ February 25, 2007: Message edited by: Anton Uwe ]

[pete stein]

Good golly, and I'm' here to suggest a totally different answer???

When I run this code I see 3 objects for the first case and 5 for the second:

public class HowManyObjs {
 
    public static void main(String[] args) {
        int[][] i = new int[1][2];
        int[][] j = new int[2][2];
 
        // i produces 3 objects.  i itself and the matrix it points to.
        System.out.println("i = " + i);
        System.out.println("i[0][0] = " + i[0][0]);
        System.out.println("i[0][1] = " + i[0][1]);
 
        // j produces 5 objects.  j itself and the matrix it points to.
        System.out.println("j = " + j);
        System.out.println("j[0][0] = " + j[0][0]);
        System.out.println("j[0][1] = " + j[0][1]);
        System.out.println("j[1][0] = " + j[1][0]);
        System.out.println("j[1][1] = " + j[1][1]);
    }
}

It also depends on what you mean by "objects". I'm refering to places in memory that hold a value.
/Pete
[ February 25, 2007: Message edited by: pete stn ]

[Keith Lynn]

I agree with Anton. The elements of an int[] aren't objects.

[pete stein]

Originally posted by Keith Lynn:
I agree with Anton. The elements of an int[] aren't objects.

Oops I stand corrected. Keith Lynn is correct. My lame excuse is that I come to Java from the c# world, and in c# everything, even a primitive type, is a subclass of Object.
[ February 25, 2007: Message edited by: pete stn ]