Java GUI教程：创建带随机数生成功能的按钮界面代码分享

求助：用Java设计一个界面，要求添加5个按钮和一个显示窗口能够生成随机数！急急急！！！

导入java.awt.Toolkit;导入java.awt.event.ActionEvent;导入java.awt.event.ActionListener;导入javax.swing.JButton;导入javax.swing.JFrame;导入javax.swing.JOptionPane;publicclassDataAddextendsJFrameimplementsActionListener{JButtonaButton=newJButton("按钮1");JButtonbButton=newJButton("按钮2");JButtoncButton=newJButton("按钮3");JButtonbutnRan=newJButton("生成一个随机数");JButtonbutnQuit=newJButton("退出");publicDataAdd(Strings){super(s);setLayout(null);add(aButton);aButton.setBounds(85,15,110,25);add(bButton);bButton.setBounds(85,50,110,25);add(butnRan);cButton.setBounds(85,85,110,25);add(cButton);butnRan.setBounds(25,120,100,25);add(butnQuit);butnQuit.setBounds(135,120,100,25);butnRan.addActionListener(this);butnQuit.addActionListener(this);setVisible(true);setSize(3)00,200);setLocation(Toolkit.getDefaultToolkit().getScreenSize().width/3,Toolkit.getDefaultToolkit().getScreenSize().width/6);setDefaultCloseOperation(JFr)ame.EXIT_ON_CLOSE);validate();//刷新}publicstaticvoidmain(String[]args){DataAddadd=newDataAdd("生成随机数");}publicvoidactionPerformed(ActionEvente){if(e.getSource()==butnRan){intn=(int)(Math.random()*10000);JOptionPane.showMessageDialog(this,"从0到9999的随机数:"+n);}elseif(e.getSource()==butnQuit){System.exit(1);}}}

用java写按钮和窗体的代码是什么

导入java.awt.BorderLayout;导入java.awt.Toolkit;导入java.awt.event.ActionEvent;导入java.awt.event.ActionListener;导入javax.swing.JButton;导入javax.swing.JFrame;导入javax.swing.JLabel;导入javax.swing.JOptionPane;importjavax.swing.JPanel;importjavax.swing.JPasswordField;importjavax.swing.JTextField;publicclassTestVerify{publicstaticvoidmain(String[]args){newLoginFrame();}}classLoginFrameextendsJFrameimplementsActionListener{privatestaticfinallongserialVersionUID=1L;privateJLabelnameLab;privateJLabelpwdLab;privateJButtonconfirmBtn;privateJTextFieldjtf_name;privateJPasswordFieldjtf_pwd;privateJButtonresetBtn;publicLoginFrame(){init();}publicvoidinit(){setTitle("登录..");setSize(260,200);setRessized(false);setUndecorated(false);//setAlwaysOnTop(true);Toolkittk=Toolkit.getDefaultToolkit();setLocation((tk.getScreenSize().width-this.getWidth())/2,(tk.getScreenSize().height-this.getHeight())/2);//this.setLocationRelativeTo(null);//设置屏幕居中显示method//tk.setLockingKeyState(java.awt.event.KeyEvent.VK_NUM_LOCK,false);//设置num_lock键初始状态为锁定（键盘指示灯灭）nameLab=newJLabel("Username:");jtf_name=newJTextField(12);pwdLab=newJLabel("密码：");jtf_pwd=newJPasswordField(12);confirmBtn=newJButton("确认");resetBtn=newJButton("重置");confirmBtn.addActionListener(this);resetBtn.addActionListener(this);JPaneljp_out=newJPanel();JPaneljp_up=newJPanel();JPaneljp_cen=newJPanel();JPaneljp_down=newJPanel();jp_up.setBounds(20,20,200,30);jp_up.add(nameLab);jp_up.add(jtf_name);jp_cen.setBounds(27,50,200,30);;jp_cen.add(pwdLab);jp_cen.add(jtf_pwd);jp_down.setBounds(30,90,200,50);;jp_down.add(confirmBtn);jp_down.add(resetBtn);jp_out.setLayout(null);jp_out.add(jp_up,BorderLayout.NORTH);jp_out.add(jp_cen,BorderLayout.CENTER);jp_out.add(jp_down,BorderLayout.SOUTH);add(jp_out);setVisible(true);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}publicvoidactionPerformed(ActionEvente){if(e.getActionCommand()=="OK"){//System.out.println(JOptionPane.PLAIN_MESSAGE);JOptionPane.showMessageDialog(this,"确定","登录提示...",JOptionPane.INFORMATION_MESSAGE);}if(e.getActionCommand()=="重置"){jtf_name.setText("");jtf_pwd.setText("");}}/*publicbooleanverifyPassword(Stringname,Stringpassword){returnfalse;}*/}