programming test for visualdna

PrintBST.java

class PrintBST 
{
  public static void print(BST bst) 
  {
    BST left = bst.getLeftChild();
    BST right = bst.getRightChild();
    if(left != null) 
    {
      PrintBST.print(left);
    }
    if(right != null) 
    {
      PrintBST.print(right);
    }
    System.out.println(bst.getValue());
  }
  
  public static void main(String[] args) 
  {
    BST bst = BST.getSampleInstance();
    PrintBST.print(bst);
  }
}