java--User Login Interface

1  Packagecom.swing;2 /*3 * User name Password login interface, add to determine whether the user name and password is correct4  * */5 Importjava.awt.*;6 Importjavax.swing.*;7 Importjava.awt.event.*;8  Public classDengluchuangkouextendsJFrame {9 Ten      Public Static voidMain (string[] args) { One         //TODO auto-generated Method Stub A         NewDengluchuangkou (); -     } -      PublicDengluchuangkou () { theJFrame jf=NewJFrame (); -Container container=Jf.getcontentpane (); -Jf.setbounds (300,200,300,180); -Container.setlayout (NULL); +          -JLabel jl1=NewJLabel ("User name"); +Jl1.setbounds (10,10, 50, 20); A         //JTextArea name=new JTextArea ();//textarea can be more than one line, you can add scroll bar atJTextField name=NewJTextField ();//TextField only one line to write -Name.setbounds (80,10,150,20); -JLabel jl2=NewJLabel ("Password"); -Jl2.setbounds (10,50,50,20); -JPasswordField password=NewJPasswordField (); -Password.setbounds (80,50,150,20); in Container.add (JL1); - Container.add (name); to Container.add (JL2); + container.add (password); -          theJButton jb1=NewJButton ("OK"); *Jb1.setbounds (40,90,80,30); $JButton jb2=NewJButton ("Reset");Panax NotoginsengJb2.setbounds (170,90,80,30); - Container.add (JB1); the Container.add (JB2); +          AJf.setvisible (true); the jf.setdefaultcloseoperation (dispose_on_close); +          -         //Setting up monitoring $Jb1.addactionlistener (NewActionListener () { $              Public voidactionperformed (ActionEvent e) { -                 if(Name.gettext (). Trim (). Equals ("admin") &&password.gettext (). Trim (). Equals ("admin")){ -Joptionpane.showmessagedialog (NULL, "Login Successful"); the                 } -                 if(Name.gettext (). Trim (). Length () ==0| | Password.gettext (). Trim (). Length () ==0){WuyiJoptionpane.showmessagedialog (NULL, "The user name or password cannot be empty!" "); the}Else{ -Joptionpane.showmessagedialog (NULL, "The user name or password is wrong! "); Wu                 } -                  About             } $         }); -          -Jb2.addactionlistener (NewActionListener () { -              Public voidactionperformed (ActionEvent e) { AName.settext (""); +Password.settext (""); the             } -         }); $          the     } the}

java--User Login Interface