Heaps

programming
1

Hi

I’m trying to print a 4-heap

This is my code:

public AnyType printH(AnyType t, int depth)
       {
           if (t != null)
           {   
              for( int i = 1; i < depth; i++ )
              System.out.print( "	" );
              System.out.println(t);
   
              int a = 4 * (indexnode - 1) + 1;
              
              if (a + 4 < array.length-1)
              {
                  printH(array[a + 1], depth+1);
                  indexnode++;
                  printH(array[a + 2], depth+1);
                  indexnode++;
                  printH(array[a + 3], depth+1);
                  indexnode++;
                  printH(array[a + 4], depth+1);
                  indexnode++;
              }
                  return t;
           }
           else
                  System.out.println("Empty heap");
           
           return t;
       }
   
  private int indexnode = 1;

And my output:
1
Empty heap
Empty heap
Empty heap
Empty heap
2
3
4
5
6
7
8
9
10

The output is supposed to be:
(indicated with tab where there is supposed to be a tab)
1
tab 2
tab tab 6
tab tab 7
tab tab 8
tab tab 9
tab 3
tab tab 10
tab 4
tab 5

What am I doing wrong?