用户登录续

/*     * 烟台大学计算机学院学生        *All right reserved.        *文件名称:java      *作者：孔云        *完成日期：2014年12月16日        *版本号：v1.0        *对任务及求解方法的描述部分:当用户点击“确定”按钮时： （1）判断用户名是否正确。如果正确，不做任何操作；如果错误，弹出警告对话框，对话框信息内容：“用户名错误，请重新输入！”返回用户输入界面，使其（用户名文本框）获得输入焦点，清空原有内容。（2）判断用户密码是否正确。如果正确，不做任何操作；如果错误，弹出错误对话框，提示用户密码错误。当用户点击对话框中的“确定”后，返回用户输入界面，使其（用户密码文本框）获得输入焦点，清空原有内容。*我的程序：     */  import java.awt.*;public class Windows {public static void main(String[] args) {windowFrame win=new windowFrame();win.setTitle("用户登录");}}

windowFrame.java

import java.awt.*;import java.util.Random;import javax.swing.*;import javax.swing.event.*;public class windowFrame extends JFrame {Panel panel1;JButton button1, button2, button3;JTextField texbook1, texbook2;JPasswordField password1;JLabel label1, label2, label3, label4;ActListen listebut;String radom;public windowFrame() {setVisible(true);setResizable(false);intform();intEvent();}void intform() {panel1 = new Panel();panel1.setSize(300, 230);Toolkit kit = Toolkit.getDefaultToolkit(); // 定义工具包Dimension screenSize = kit.getScreenSize(); // 获取屏幕的尺寸int screenWidth = screenSize.width / 2; // 获取屏幕的宽int screenHeight = screenSize.height / 2; // 获取屏幕的高setLocation(screenWidth / 2, screenHeight / 2);panel1.setLayout(null);label1 = new JLabel("用户名:");label1.setBounds(50, 20, 50, 20);panel1.add(label1);texbook1 = new JTextField();texbook1.setBounds(100, 20, 150, 20);panel1.add(texbook1);label2 = new JLabel("密码:  ");label2.setBounds(50, 50, 50, 20);panel1.add(label2);password1 = new JPasswordField(10);password1.setEchoChar('*');password1.setBounds(100, 50, 150, 20);panel1.add(password1);label3 = new JLabel("验证码:");label3.setBounds(50, 80, 50, 20);panel1.add(label3);texbook2 = new JTextField();texbook2.setBounds(100, 80, 50, 20);panel1.add(texbook2);Random rd = new Random();radom=Integer.toString(rd.nextInt(8999) + 1000);label4 = new JLabel(radom);label4.setBounds(200, 80, 40, 20);panel1.add(label4);button1 = new JButton("确定");button1.setBounds(50, 120, 60, 20);panel1.add(button1);button2 = new JButton("重置");button2.setBounds(120, 120, 60, 20);panel1.add(button2);button3 = new JButton("取消");button3.setBounds(190, 120, 60, 20);panel1.add(button3);add(panel1);pack();}void intEvent() {listebut = new ActListen();listebut.setpassword1text(password1);listebut.settextbook1text(texbook1);listebut.settextbook2text(texbook2);listebut.setlabel4(label4);listebut.setbutton1(button1);listebut.setbutton2(button2);listebut.setbutton3(button3);listebut.setform(this);button1.addActionListener(listebut);button2.addActionListener(listebut);button3.addActionListener(listebut);}}

ActListen.java

import java.awt.event.*;import java.util.Arrays;import java.util.Random;import javax.swing.*;public class ActListen implements ActionListener { JPasswordField pass; JTextField text1, text2; JLabel label4; JButton button1, button2, button3; windowFrame form; public void setpassword1text(JPasswordField pass) {  this.pass = pass; } public void settextbook1text(JTextField text1) {  this.text1 = text1; } public void settextbook2text(JTextField text2) {  this.text2 = text2; } public void setlabel4(JLabel label4) {  this.label4 = label4; } public void setbutton1(JButton button1) {  this.button1 = button1; } public void setbutton2(JButton button2) {  this.button2 = button2; } public void setbutton3(JButton button3) {  this.button3 = button3; } public void setform(windowFrame form) {  this.form = form; } public void actionPerformed(ActionEvent e) {  if (e.getSource() == button1) {   if (!text1.getText().equals("猴子")) {    JOptionPane.showMessageDialog(null, "对不起！用户名错误，请重新输入！", "",      JOptionPane.WARNING_MESSAGE);    text1.setText(null);    text1.setFocusable(true);    return;   } else {    if (!Arrays      .equals(pass.getPassword(), "123kyT".toCharArray())) {     JOptionPane.showMessageDialog(null, "对不起！密码错误，请重新输入！", "",       JOptionPane.WARNING_MESSAGE);     pass.setText(null);     pass.setFocusable(true);    } else {     if (!text2.getText().equals(label4.getText())) {      JOptionPane.showMessageDialog(null, "对不起！验证码错误，请重新输入！", "",        JOptionPane.WARNING_MESSAGE);      Random rd = new Random();      label4.setText(Integer.toString(rd.nextInt(8999) + 1000));      text2.setText(null);     } else {      JOptionPane.showMessageDialog(null, "亲，恭喜哦~登录成功、、、", "",        JOptionPane.WARNING_MESSAGE);// 如何自定义对话框     }    }   }  }  if (e.getSource() == button2) {   text1.setText("");   text2.setText("");   pass.setText("");  }  if (e.getSource() == button3) {   form.dispose();  } }}