完成用户登陆

package GUI;
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;

public class LoginUI {

public JFrame jf;
public JPanel jp;
public JLabel jLabel1;
public JLabel jLabel2;
public JLabel jLabel3;
public JTextField jUserName;
public JPasswordField jPassWord;
public JButton post;
public JButton reset;

public LoginUI() {

    jf = new JFrame("Login");
    jf.setSize(400, 175);
    jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    jf.setLocationRelativeTo(null);
    jf.setResizable(false);

    jp = new JPanel(new FlowLayout());

    jLabel1 = new JLabel();
    jLabel1.setText("Account :   ");
    jLabel1.setFont(new Font(null, Font.PLAIN, 18));

    jLabel2 =new JLabel();
    jLabel2.setText("Password : ");
    jLabel2.setFont(new Font(null, Font.PLAIN, 18));

    jLabel3 =new JLabel();
    jLabel3.setText("Please input your account and password");
    jLabel3.setFont(new Font(null, Font.PLAIN, 18));

    jUserName = new JTextField(16);
    jUserName.setFont(new Font(null, Font.PLAIN, 18));

    jPassWord = new JPasswordField(16);
    jPassWord.setFont(new Font(null, Font.PLAIN, 18));

    post = new JButton(" L o g i n ");
    post.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent actionEvent) {
            String account = new String(jUserName.getText());
            String psw =  new String(jPassWord.getPassword());
            if(account.equals("silver") && psw.equals("moon")){
                jLabel3.setText("Login successful (｡･ω･｡)ﾉ♡");
            }else{
                jLabel3.setText("Account or password input error");
            }
        }
    });

    reset = new JButton(" R e s e t ");
    reset.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent actionEvent) {
            jUserName.setText("");
            jPassWord.setText("");
        }
    });


    jp.add(jLabel1);
    jp.add(jUserName);
    jp.add(jLabel2);
    jp.add(jPassWord);
    jp.add(post);
    jp.add(reset);
    jp.add(jLabel3);

    jf.setContentPane(jp);
    jf.setVisible(true);

}

public static void main (String[] args){

    new LoginUI();

}

}

这次作业和上周的作业有点像, 就只是加了个if, 比较简单, 就不加注释了