testtable.java

一些简单的java程序。老师很认真

package com.test;
import javax.swing.*;
import com.resource.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
public class TestTable extends JFrame implements ActionListener{
	UserManager um=new UserManager();
	JLabel l=new JLabel("请输入你要查找的姓名");
	JTextField tf=new JTextField();
	JRadioButton rb1=new JRadioButton("模糊查询");
	JRadioButton rb2=new JRadioButton("精确查询");
	JButton ok=new JButton("确定");
	JButton cancel=new JButton("取消");
	String[] columnNames = {"id","name","password"};
	String[][] ut=new String[10][3];
	JTable t=new JTable(ut,columnNames);
	TestTable(){
		super("search users");
		this.setSize(1200,800);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		rb1.addActionListener(this);
		rb2.addActionListener(this);
		ok.addActionListener(this);
		cancel.addActionListener(this);
		tf.setSize(30,10);
		tf.setText("             ");
		Container c=this.getContentPane();
		JPanel p=new JPanel();
		p.add(l);
		p.add(tf);
		p.add(rb1);
		p.add(rb2);
		p.add(ok);
		p.add(cancel);
		p.add(t);
		c.add(p,BorderLayout.NORTH);
		JScrollPane scrollPane = new JScrollPane(t);
		t.setPreferredScrollableViewportSize(new Dimension(300, 80));
	    t.setCellSelectionEnabled(true);
        c.add(scrollPane,BorderLayout.SOUTH);
		pack();
		setVisible(true);
	}
	public void actionPerformed(ActionEvent e){
		ArrayList l=new ArrayList();
		User u=new User();
		for(int i=0;i<t.getRowCount();i++)   
		    for(int j=0;j<t.getColumnCount();j++)   
		      t.setValueAt("",i,j);
		if (e.getSource()==ok)
			if (rb1.isSelected())
				if (tf.getText()!=null)
				{
					try{
						l=this.um.searchUserByNameUnExactly(tf.getText().trim());
						Iterator it=l.iterator();
						while(it.hasNext())
						{
							u=(User)it.next();
							System.out.println(u.getId()+" "+u.getName());
						}
					}catch(Exception ee){System.out.println("null pointer exception");}
					if (l!=null)
					   for(int i=0;i<l.size();i++)
					    {
						  u=(User)l.get(i);
						  t.setValueAt(u.getId(), i, 0);
						  t.setValueAt(u.getName(),i,1);
						  t.setValueAt(u.getPassword(), i,2);
					    }
				}
	}
	public static void main(String[] args){
		TestTable tt=new TestTable();
		tt.um.addUser(new User("111","tom","111"));
		tt.um.addUser(new User("222","tracy","222"));
		tt.um.addUser(new User("333","lisa","333"));
	}
}