您好,欢迎访问三七文档
当前位置:首页 > 商业/管理/HR > 质量控制/管理 > java程序返回用户名和密码)
最近在翻阅java基础知识的时候偶然间看到了jpassword的用法的介绍,然后写下了如下的这个demo,供参考,提供意见实现功能:当你输入用户名和密码后会返回一个窗体,有刚才输入的用户名和密码。代码如下所示:packagecom.item.cn;//实现读取登录的密码和用户名importjava.awt.Container;importjava.awt.GridLayout;importjava.awt.Label;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JOptionPane;importjavax.swing.JPasswordField;importjavax.swing.JTextField;publicclassJpasswordFieldextendsJFrame{/***@paramargs*/JTextFielduserName;JPasswordFieldpassword;JButtonloginBtn;JButtoncancelBtn;publicJpasswordField(){super(Jpassword的演示);Containercontainer=getContentPane();container.setLayout(newGridLayout(3,2));userName=newJTextField(16);password=newJPasswordField(16);loginBtn=newJButton(登录);loginBtn.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEventevt){char[]pw=password.getPassword();Stringmessage=您的用户名是:+userName.getText()+\n您的密码是:+newString(pw);if(message==null){System.out.println(你需要输入用户名和密码);}else{JOptionPane.showMessageDialog(JpasswordField.this,message);}}});cancelBtn=newJButton(取消);cancelBtn.addActionListener(newActionListener(){publicvoidactionPerform(ActionEventevt){System.exit(0);}@OverridepublicvoidactionPerformed(ActionEventarg0){//TODOAuto-generatedmethodstubSystem.exit(0);}});container.add(newLabel(userName:));container.add(userName);container.add(newLabel(passWord:));container.add(password);container.add(loginBtn);container.add(cancelBtn);this.setSize(300,150);this.setLocation(400,250);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);}publicstaticvoidmain(String[]args){newJpasswordField();}}最近在翻阅java基础知识的时候偶然间看到了jpassword的用法的介绍,然后写下了如下的这个demo,供参考,提供意见实现功能:当你输入用户名和密码后会返回一个窗体,有刚才输入的用户名和密码。代码如下所示:packagecom.item.cn;//实现读取登录的密码和用户名importjava.awt.Container;importjava.awt.GridLayout;importjava.awt.Label;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JOptionPane;importjavax.swing.JPasswordField;importjavax.swing.JTextField;publicclassJpasswordFieldextendsJFrame{/***@paramargs*/JTextFielduserName;JPasswordFieldpassword;JButtonloginBtn;JButtoncancelBtn;publicJpasswordField(){super(Jpassword的演示);Containercontainer=getContentPane();container.setLayout(newGridLayout(3,2));userName=newJTextField(16);password=newJPasswordField(16);loginBtn=newJButton(登录);loginBtn.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEventevt){char[]pw=password.getPassword();Stringmessage=您的用户名是:+userName.getText()+\n您的密码是:+newString(pw);if(message==null){System.out.println(你需要输入用户名和密码);}else{JOptionPane.showMessageDialog(JpasswordField.this,message);}}});cancelBtn=newJButton(取消);cancelBtn.addActionListener(newActionListener(){publicvoidactionPerform(ActionEventevt){System.exit(0);}@OverridepublicvoidactionPerformed(ActionEventarg0){//TODOAuto-generatedmethodstubSystem.exit(0);}});container.add(newLabel(userName:));container.add(userName);container.add(newLabel(passWord:));container.add(password);container.add(loginBtn);container.add(cancelBtn);this.setSize(300,150);this.setLocation(400,250);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);}publicstaticvoidmain(String[]args){newJpasswordField();}}
本文标题:java程序返回用户名和密码)
链接地址:https://www.777doc.com/doc-5354923 .html