Interface, failed product

Import Java.awt.gridlayout;import Java.io.bufferedreader;import Java.io.ioexception;import Java.io.inputstreamreader;import Javax.swing.jbutton;import Javax.swing.jframe;import Javax.swing.JLabel;import Javax.swing.jpanel;import javax.swing.jpasswordfield;import javax.swing.jtextfield;class Jiem extends JFrame{      JTextField JTextField;//define text box component JPasswordField jpasswordfield;//define cipher box component JLabel Jlabel1,jlabel2;      JPanel jp1,jp2,jp3;         Public Jiem () {JButton jbu1,jbu2;         JTextField = new JTextField (12);         JPasswordField = new JPasswordField (13);         JLabel1 = new JLabel ("User name");        JLabel2 = new JLabel ("password");         JBU1 = new JButton ("confirmation");        JBU2 = new JButton ("Cancel");        JP1 = new JPanel ();         JP2 = new JPanel ();                JP3 = new JPanel ();                 Set Layout this.setlayout (new GridLayout (3,1));          Jp1.add (JLABEL1);                  Jp1.add (JTextField);//First panel add user name and text box Jp2.add (JLABEL2); Jp2.adD (JPasswordField);//The second panel adds a password and password input box Jp3.add (JBU1); Jp3.add (JBU2);  　　The third panel adds confirmation and cancellation//Jp3.setlayout (New FlowLayout ());         Because JPanel default layout is FlowLayout, you can unregister this code.         This.add (JP1);         This.add (JP2);  This.add (JP3);         Add three panels to the login box//settings display This.setsize (300, 200);         This.pack ();         This.setdefaultcloseoperation (Jframe.exit_on_close);         This.setvisible (TRUE);      This.settitle ("Landing");      Public login () {String name= "abc";      int mima=123; }}

Interface, failed product