treenode.java

经典问题

//package datastruct;


import java.util.*;

public class TreeNode {

    public TreeNode lchild,rchild;
    public String data;
    public TreeNode()
    {
        lchild=null;
        rchild=null;
    }
    
    public TreeNode(String st)
    {
        data=st;
        lchild=rchild=null;
    }        
    
    public TreeNode(String st,TreeNode lchild,TreeNode rchild)
    {
        data=st;
        this.lchild=lchild;
        this.rchild=rchild;
    }       
}