?? mainclass.java
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import java.awt.*;
import javax.swing.tree.*;
import java.util.*;
import javax.swing.*;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
public class MainClass
{
JFrame f;
JPanel p1;
JPanel p2;
JPanel p3;
JPanel p4;
JScrollPane ScrollPane;
JScrollPane ScrollPane1;
JTree tree;
TreeSelectionModel sm;
DefaultMutableTreeNode biology;
DefaultMutableTreeNode animal;
DefaultMutableTreeNode animal0;
DefaultMutableTreeNode mammal;
DefaultMutableTreeNode horse0;
DefaultMutableTreeNode horse1;
DefaultMutableTreeNode horse2;
DefaultMutableTreeNode horse3;
DefaultMutableTreeNode horse4;
JPopupMenu jPopupMenu1 = new JPopupMenu();
JMenuItem jMenuItem1 = new JMenuItem();
JMenuItem jMenuItem2 = new JMenuItem();
JMenuItem jMenuItem3 = new JMenuItem();
JMenu m1;
JMenu m2;
JMenu m3;
JMenu m4;
JMenu m5;
JMenu m6;
JMenu m7;
JMenu m8;
JMenu m9;
JMenuItem m11;
JMenuItem m12;
JMenuBar mb;
JButton b1,b2,b3,b4;
public void show()
{
f = new JFrame("煙花爆竹流向管理系統(tǒng)");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Object[] letters= {"a", "b", "c", "d", "e"};
//JTree tree = new JTree (letters);
biology = new DefaultMutableTreeNode ("煙花爆竹流向管理系統(tǒng)");
animal = new DefaultMutableTreeNode ("進(jìn)貨管理");
animal0 = new DefaultMutableTreeNode ("商品進(jìn)貨");
mammal = new DefaultMutableTreeNode ("銷貨管理");
horse0 = new DefaultMutableTreeNode ("庫存管理");
horse1 = new DefaultMutableTreeNode ("統(tǒng)計管理");
horse2 = new DefaultMutableTreeNode ("日常維護(hù)");
horse3 = new DefaultMutableTreeNode ("系統(tǒng)維護(hù)");
horse4 = new DefaultMutableTreeNode ("流向維護(hù)");
jMenuItem1.setText("添加");
jMenuItem2.setText("刪除");
jMenuItem3.setText("重命名");
jPopupMenu1.add(jMenuItem1);
jPopupMenu1.add(jMenuItem2);
jPopupMenu1.add(jMenuItem3);
m1=new JMenu("文件");
m11=new JMenuItem("打開");
m12=new JMenuItem("保存");
m1.add(m11);
m1.add(m12);
m2=new JMenu("進(jìn)貨管理");
m3=new JMenu("銷貨管理");
m4=new JMenu("庫存管理");
m5=new JMenu("統(tǒng)計管理");
m6=new JMenu("日常管理");
m7=new JMenu("系統(tǒng)管理");
m8=new JMenu("流向管理");
m9=new JMenu("系統(tǒng)幫助");
mb=new JMenuBar();
mb.add(m1);
mb.add(m2);
mb.add(m3);
mb.add(m4);
mb.add(m5);
mb.add(m8);
mb.add(m6);
mb.add(m7);
mb.add(m9);
biology.add (animal);
biology.add (mammal);
animal.add (animal0);
biology.add (horse0);
biology.add (horse1);
biology.add (horse4);
biology.add (horse2);
biology.add (horse3);
tree = new JTree (biology);
sm=new DefaultTreeSelectionModel();
sm.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
tree.setSelectionModel(sm);
tree.addTreeSelectionListener(new TreeSelectionListener()
{
public void valueChanged(TreeSelectionEvent e)
{
Object tp[]=e.getPath().getPath();
System.out.println(tp[tp.length-1].toString()); //顯示所選節(jié)點的值
StringBuffer sb=new StringBuffer();
for(int i=1;i<tp.length;i++)
{
sb.append(tp[i]+"/");
}
{
System.out.println(new String(sb)); //顯示所選節(jié)點所經(jīng)過的路徑
String ss=new String(sb);
System.out.println("-------------"+ss+"---------------"); //顯示所選節(jié)點所經(jīng)過的路徑
{
}
if(ss.equals("統(tǒng)計管理/"))
{
System.out.println("hong yu ke");
p4.add(b4);
p4.updateUI();//panel是JPanel的控件名
System.out.println("ok");
}
}
}
}
);//增加選中節(jié)點的監(jiān)聽器
tree.addMouseListener(new Tree_jTree1_mouseAdapter(this));
b2=new JButton("hong yu ke");
b3=new JButton("cheng yan qiu");
b4=new JButton("li ming zhu");
BorderLayout bl=new BorderLayout();
f.setLayout(bl);
f.setJMenuBar(mb);
p1=new JPanel();
p2=new JPanel();
p3=new JPanel();
p4=new JPanel();
ScrollPane= new JScrollPane(tree);
ScrollPane1=new JScrollPane(b2);
p1.add(ScrollPane);
p2.add(ScrollPane1);
p3.add(b3);
p3.add(b2);
p3.add(b4);
f.add(jPopupMenu1);
f.add(p1,"West");
f.add(p2,"Center");
f.add(p3,"North");
f.add(p4,"South");
f.setSize(700,550);
f.setVisible(true);
}
public void jTree1_mouseReleased(MouseEvent e)
{
if(e.isPopupTrigger())
{
System.out.println("hong yu ke");
jPopupMenu1.show(f,e.getX(),e.getY());
}
}
public static void main(String args[])
{
MainClass f=new MainClass();
f.show();
}
}
class Tree_jTree1_mouseAdapter extends MouseAdapter
{
private MainClass adaptee;
Tree_jTree1_mouseAdapter(MainClass adaptee)
{
this.adaptee = adaptee;
}
public void mouseReleased(MouseEvent e)
{
adaptee.jTree1_mouseReleased(e);
}
}
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