mytest1.java

项目实战

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class myTest1 extends JFrame implements ActionListener{
	JLabel lblTitle=new JLabel("用户登陆:");
	
	JLabel lblName=new JLabel("姓名");
	JLabel lblPwd=new JLabel("密码");
	JTextField txtName=new JTextField(10);
	JPasswordField txtPwd=new JPasswordField(10);
	JButton btnOK=new JButton("确定");
	JButton btnCal=new JButton("取消");
	JPanel p0=new JPanel();
	JPanel p1=new JPanel();
	JPanel p2=new JPanel();
	JPanel p3=new JPanel();
	public myTest1(String s){
		super(s);
		Container con=this.getContentPane();
		con.setLayout(new GridLayout(5,1));
		txtName.setText("张三");
		txtPwd.setText("12345");
		p0.add(lblTitle);
		p1.add(lblName);
		p1.add(txtName);
		p2.add(lblPwd);
		p2.add(txtPwd);
		p3.add(btnOK);
		p3.add(btnCal);
	    con.add(p0);
	    con.add(p1);
		con.add(p2);
		con.add(p3);
		btnOK.addActionListener(this);
		btnCal.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e){
		if(e.getSource().equals(btnOK)){
			if(txtName.getText().equals("admin")&&txtPwd.getText().equals("12345")){
				System.out.println("正确");
			}else{
				System.out.println("错误");
			}
		}
		if(e.getSource().equals(btnCal)){
			txtName.setText("");
			txtPwd.setText("");
		}
	}
/*	public static void main(String[]args){
		myTest1 t=new myTest1("用户登录");
		t.setSize(240,200);
		t.setVisible(true);
	}*/
}