1. objects2,184,435
2. CEHJ1,507,136
3. mwvisa1227,345
4. a_b226,803
5. ksivananth192,759
6. basav_com137,179
7. mrjoltcola117,666
8. Thomas4...112,534
9. gibu_geo...94,983
10. jim_cakalic82,790
11. sciuriware76,022
12. fsze8875,772
13. Christofer...67,138
14. Interactive...56,592
15. dravidnsr56,064
16. bluebelldis...55,751
17. ozlevanon54,968
18. Kuldeepc...42,700
19. Bart_Cr41,380
20. n_sachin140,200
21. mrcoffee...35,716
22. gurvinder...33,917
23. Venabili33,908
24. rpnman33,344
25. rrz@87...31,244

1. objects12,158,018
2. CEHJ10,113,129
3. zzynx1,630,526
4. mayankea...1,438,443
5. TimYates1,342,245
6. sciuriware1,131,993
7. girionis1,022,287
8. ksivananth792,550
9. Ajay-Singh790,745
10. heyhey_515,764
11. jim_cakalic504,446
12. aozarov483,814
13. mwvisa1469,782
14. Javatm456,951
15. orangehe...393,681
16. hoomanv378,789
17. Webstorm359,422
18. sudhakar...351,968
19. bloodredsun321,737
20. cmalakar312,277
21. StillUnAw...300,197
22. suprapto45295,202
23. petmagdy288,188
24. Giant2287,095
25. contactka...265,356

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6.2

insertion

Asked by compscigirl in Java Programming Language

Tags: method

hi, i'm doing a BinarySearchTree program and i'm having a problem with the insertion method.
the pseudocode for insertion was
*void insert (TreeNode node, Object data)
            // Will insert data into an ordered binary tree.
            // The solution is recursive.
            {
              if
              node points to null, insert data as a new TreeNode pointed to by node
              else
              if (data < node.getValue())
              recursively insert data to the left
              else if (data > node.getValue())
              recursively insert data to the right
            }

my implementation:

private void insert(TreeNode node, Object data)
{
            if (node == null)
                  node.setValue(new TreeNode(data, null, null));
            else
            {
                  if (((Item)data).compareTo((Item)node.getValue()) < 0)
                   insert(node.getLeft(), data);
                  else
                        insert(node.getRight(), data);
            }
      }

i know that this code gives me NullPointerException since i can't setValue on a null node
but how else am i going to insert data into null nodes??

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20090824-EE-VQP-74

insertion

Asked by compscigirl in Java Programming Language

Tags: method

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