1. 程式人生 > >java實現登陸介面

java實現登陸介面

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class T2  {

	/**
	 * @param args
	 */
	private static JFrame frame;
	private JTextField t1,t2;
	private JPasswordField password;
	private JLabel b1,b2,b3,b4;
	private JButton  btn1,btn2;
	public T2(){
		frame=new JFrame();
		frame.setSize(300,400);
		frame.setLayout(new FlowLayout());
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
		b1=new JLabel("使用者名稱");
		b2=new JLabel("密碼");
		t1=new JTextField(10);
		password=new JPasswordField(10);
		btn1=new JButton("登陸");
		btn2=new JButton("取消");
		frame.add(b1);
		frame.add(t1);
		frame.add(b2);
		frame.add(password);
		frame.add(btn1);
		frame.add(btn2);
		
        btn1.addActionListener(new ActionListener(){
        	public void actionPerformed(ActionEvent e){
        		if((t1.getText().trim()).equals("餘雪鵬") && (password.getText().trim()).equals("123456"))
        		{
        			b3=new JLabel("密碼正確,登陸成功!");
        			frame.add(b3);
        			frame.setVisible(true);
        		}
        		else{
        			b4=new JLabel("密碼錯誤 ,找回密碼!");
        			frame.add(b4);
        			frame.setVisible(true);
        		}
        	}
        });
        btn2.addActionListener(new ActionListener(){
        	public void actionPerformed(ActionEvent e){
        		if(e.getSource()==btn2)
        		{
        			System.exit(0);
        		}
        	
        	}
        });
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
         new T2();
         frame.setVisible(true);
	}

}