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jAvA trEE

给叶节点设置监听的Java程序如下: package Tree.java; import java.awt.Container; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTree; import javax.swing.event.TreeSelectionEvent; import javax.swing....

树节点类: package cn.com.tree; public class Node { private Integer id; private Integer parentId; private String name; private String link; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } p...

import javax.swing.*;import javax.swing.tree.*;import java.awt.*;import java.awt.event.*;class Mytree extends JFrame{Mytree(String s){super(s);Container con=getContentPane();DefaultMutableTreeNode root=new DefaultMutableTreeNod...

import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.tree.*;import javax.swing.event.*;class TreesDemo extends JFrame implements TreeSelectionListener{JTree tree=null;JTextArea text=new JTextArea(20...

使用TreeMap类 TreeMap类不仅实现了Map接口,还实现了Map接口的子接口java.util.SortedMap。由TreeMap类实现的Map集合,不允许键对象为null,因为集合中的映射关系是根据键对象按照一定顺序排列的,TreeMap类通过实现SortedMap接口得到的方法可...

java构造二叉树,可以通过链表来构造,如下代码: public class BinTree {public final static int MAX=40;BinTree []elements = new BinTree[MAX];//层次遍历时保存各个节点 int front;//层次遍历时队首 int rear;//层次遍历时队尾private Obje...

安装完成以后,需要配置一下环境变量,在我的电脑->属性->高级->环境变量->系统变量中添加以下环境变量 JAVA_HOME=c:\program files\java\jdk1.6.0_07 classpath=. ;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;(.;一定不能少,因为...

xxxTree.addTreeSelectionListener(new TreeSelectionListener() {@Overridepublic void valueChanged(TreeSelectionEvent e) {DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.getPath().getLastPathComponent();if (node.getUserOb...

public class ReadExcel001 { public static void main(String[] args) { readXml("D:/test.xlsx"); System.out.println("-------------"); readXml("d:/test2.xls"); } public static void readXml(String fileName){ boolean isE2007 = false;...

一个List/Array形式的? 你现成的已经是这样了。 看客户端的表现了。

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