2012密码域控件的简单应用

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1、密码域控件的简单应用关键技术：publicchar[]getPassword()packagecom.java2010.test;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.util.Arrays;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JLabel;importjavax.swing.JOptionPan

2、e;importjavax.swing.JPasswordField;importjavax.swing.UIManager;publicclassTest03extendsJFrame{/***@paramargs*///定义我们需要的组件//标签JLabeljl1,jl2;//密码框JPasswordFieldjpf1,jpf2;//按钮JButtonjb1;//构造方法publicTest03(){try{//皮肤UIManager.setLookAndFeel("com.sun.java.swing.plaf

3、.nimbus.NimbusLookAndFeel");}catch(Exceptione){//TODO:handleexception}jl1=newJLabel("输入密码:");jl2=newJLabel("确认密码:");jpf1=newJPasswordField(25);//设置密码显示符jpf1.setEchoChar('#');jpf2=newJPasswordField(25);jpf2.setEchoChar('#');jb1=newJButton("提交");jb1.addActionList

4、ener(newActionListener(){@OverridepublicvoidactionPerformed(ActionEvente){//TODOAuto-generatedmethodstubbutton(e);}});//设置窗体的布局格式this.setLayout(null);jl1.setBounds(50,20,80,25);this.add(jl1);jpf1.setBounds(120,20,120,30);this.add(jpf1);jl2.setBounds(50,70,80,25

5、);this.add(jl2);jpf2.setBounds(120,70,120,30);this.add(jpf2);jb1.setBounds(100,120,80,30);this.add(jb1);//大小this.setSize(300,200);//可见this.setVisible(true);//标题this.setTitle("力天教育_密码");//退出关闭虚拟机this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}publicvoidbutt

6、on(ActionEvente){char[]password1=jpf1.getPassword();char[]password2=jpf2.getPassword();if(password1.length==0){JOptionPane.showMessageDialog(this,"密码不能为空","鬼,你的密码输入错了!",JOptionPane.WARNING_MESSAGE);}elseif(password1.length<6){JOptionPane.showMessageDialog(this,

7、"密码长度小于6位","鬼,你的密码输入错了!",JOptionPane.WARNING_MESSAGE);}elseif(password2.length==0){JOptionPane.showMessageDialog(this,"确认密码不能为空","鬼,你的密码输入错了!",JOptionPane.WARNING_MESSAGE);}elseif(password2.length<6){JOptionPane.showMessageDialog(this,"确认密码长度小于6位","鬼,你的密码输入错了!"

8、,JOptionPane.WARNING_MESSAGE);}elseif(!Arrays.equals(password1,password2)){JOptionPane.showMessageDialog(this,"两次密码不一样","鬼,你的密码输入错了!",JOptionPane.WARNING_MESSAGE);}else{JOpt