Array initialisation

Question

int a[ ][ ]=new int [5][5];
for (int i=0;I<5;I++)
{
for(int j=0;j<I+1;j++)
System.out.print(a[i][j]+" ");
}
System.out.println();

this code outputs
0
0 0
0 0 0... and so on..
Why so?
since I didn't initialise the array values. how does it give 0?
I hope I made myself clear.

Answer 1

Default value of uninitialized variables of int, float, double is 0.

Answer 2

okay, Thanks :)