just for fun~public class TreeTest { public static void main(String[] args) { Set<TreeVo> tree = new TreeSet<TreeVo>(); TreeVo vo1 = new TreeVo(1,2); TreeVo vo2 = new TreeVo(2,3); TreeVo vo3 = new TreeVo(3,1); if(addTree(tree, vo1)){ tree.add(vo1); } if(addTree(tree, vo2)){ tree.add(vo2); } if(addTree(tree, vo3)){ tree.add(vo3); }
public static void main(String[] args) {
Set<TreeVo> tree = new TreeSet<TreeVo>();
TreeVo vo1 = new TreeVo(1,2);
TreeVo vo2 = new TreeVo(2,3);
TreeVo vo3 = new TreeVo(3,1);
if(addTree(tree, vo1)){
tree.add(vo1);
}
if(addTree(tree, vo2)){
tree.add(vo2);
}
if(addTree(tree, vo3)){
tree.add(vo3);
}
}
public static boolean addTree(Set tree,TreeVo vo){
if(tree.contains(vo)){
System.out.println("its fail because exit:"+ vo.getNext());
return false;
}else{
System.out.println("its ok:" + vo.getNext());
return true;
}
}}
/**
* 文件名:TreeVo.java
* @auter chenjw
* 版本信息:
* 日期:2012-7-17
* Copyright 足下 Corporation 2012
* 版权所有
*/
package com.csdn.tree;/**
* @ClassName: TreeVo
* @Description: TODO(这里用一句话描述这个类的作用)
* @author chenjw
* @date 2012-7-17 下午5:58:14
*/public class TreeVo implements Comparable<TreeVo>{
/* (non-Javadoc)
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
public int compareTo(TreeVo o) {
// TODO Auto-generated method stub
return o.value - this.next;
} private int value;
private int next;
public TreeVo(){
}
public TreeVo(int value,int next){
this.value = value;
this.next = next;
}
/**
* value
*
* @return the value
* @since CodingExample Ver(编码范例查看) 1.0
*/
public int getValue() {
return value;
}
/**
* @param value the value to set
*/
public void setValue(int value) {
this.value = value;
}
/**
* next
*
* @return the next
* @since CodingExample Ver(编码范例查看) 1.0
*/
public int getNext() {
return next;
}
/**
* @param next the next to set
*/
public void setNext(int next) {
this.next = next;
}
}