Instant Internal Chat program--register

Package Z0929;
Import Java.awt.BorderLayout;
Import Java.awt.FlowLayout;
Import Java.awt.GridLayout;
Import java.awt.event.ActionEvent;
Import Java.awt.event.ActionListener;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.OutputStream;
Import Java.net.Socket;

Import java.net.UnknownHostException;
Import Javax.swing.JButton;
Import Javax.swing.JFrame;
Import Javax.swing.JLabel;
Import Javax.swing.JOptionPane;
Import Javax.swing.JPanel;
Import Javax.swing.JPasswordField;

Import Javax.swing.JTextField;
	public class Zhuce extends JFrame {private JLabel usernamejlabal;
	Private JLabel Passwordjlabal;
	Private JLabel Repasswordjlabal;
	Private JTextField Usernamefield;
	Private JPasswordField Passwordfield;
	Private JPasswordField Repasswordfield;
	Private JButton zhuce;

	Private JButton Fanhui;
		Public Zhuce () {settitle ("User registration");
		SetSize (440, 340);
		Setlocationrelativeto (NULL);
		Setdefaultcloseoperation (2);
		Setresizable (FALSE);
	Setundecorated (FALSE);	
		Usernamejlabal = new JLabel ("account");

		Passwordjlabal = new JLabel ("password");
		Repasswordjlabal = new JLabel ("Confirm password");
		Usernamefield = new JTextField ();
		Passwordfield = new JPasswordField ();
		Repasswordfield = new JPasswordField ();
		Zhuce = new JButton ("complete registration");
		Fanhui =new JButton ("return login");
		JPanel JP = new JPanel ();
		Jp.setlayout (New GridLayout (0, 2));
		Jp.add (New JLabel (""));
		Jp.add (New JLabel (""));
		Jp.add (Usernamejlabal);	
		Jp.add (Usernamefield);
		Jp.add (New JLabel (""));
		Jp.add (New JLabel (""));
		Jp.add (Passwordjlabal);	
		Jp.add (Passwordfield);
		Jp.add (New JLabel (""));
		Jp.add (New JLabel (""));
		Jp.add (Repasswordjlabal);
		Jp.add (Repasswordfield);
		Jp.add (New JLabel (""));

		Jp.add (New JLabel (""));
		JPanel jp2=new JPanel ();
		Jp2.setlayout (New FlowLayout ());
		Jp2.add (Zhuce);
		Jp2.add (Fanhui);
		Add (JP2, Borderlayout.south);
		Add (JP);
		Add (New JLabel (""), borderlayout.west);

		Add (New JLabel (""), Borderlayout.east); SetVisible (TRUE);
				Zhuce.addactionlistener (new ActionListener () {//Check that the registration information entered meets the requirements public void actionperformed (ActionEvent e) {
					if (Usernamefield.gettext (). Trim (). Length () < 6) {Joptionpane.showmessagedialog (zhuce.this, "Insufficient user name");
				Return
					else if (Passwordfield.gettext (). Trim (). Length () < 6) {Joptionpane.showmessagedialog (zhuce.this, "Not Enough password length");
				Return
					else if (!passwordfield.gettext (). Trim (). Equals (Repasswordfield.gettext (). Trim ())) {
					Joptionpane.showmessagedialog (zhuce.this, "Two input passwords are different");
				Return ///Send registration information//Registration information 1 Login Information 2 Chat 3 String message = 1 + "" + usernamefield.gettext (). Trim () + "" + Password
				Field.gettext (). Trim ();
				Messageio io = new Messageio (); Io.

				SendMessage (message); Receive registration results//Success Y failed n String jieshou = io.
				Recerivemessag ();
					if (jieshou.equals ("Y")) {Joptionpane.showmessagedialog (Zhuce.this, "registered successfully");
					Zhuce.this.dispose ();

				New DENGLUJM (); } ELSE if (Jieshou.equals ("n")) {Joptionpane.showmessagedialog (Zhuce.this, "username already exists");
				Return
		
		}
			}

		}); Fanhui.addactionlistener (new ActionListener () {@Override public void actionperformed (ActionEvent arg0) {en
				Uce.this.dispose ();
				
			New DENGLUJM ();
	}
		});
 }
}