Reverse Traversal

  public void reverse( ) {

Node node = root;
 Stack<Node> stack = new Stack<Node>( );
 while( ! stack.isEmpty( ) || node != null ) {
 if( node != null ) {
 stack.push( node );
 node = node.right;
 } else {
 node = stack.pop( );
 System.out.print( node.data + " " );
 node = node.left;
 }
 }
}

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