Java Learning notes (vi)

Import Java.awt.BorderLayout;

Import Java.awt.ScrollPane;

Import java.awt.event.ActionEvent;

Import Java.awt.event.ActionListener;

Import Java.util.HashSet; Import Java.util.Random;

Import Javax.swing.JButton;

Import Javax.swing.JFrame;

Import Javax.swing.JLabel;

Import Javax.swing.JPanel;

Import Javax.swing.JTextArea;

public class CJ extends jframe{public CJ () {This.settitle ("lottery System");

This.setsize (250, 180);

This.setresizable (FALSE);

This.setlocationrelativeto (this);

This.setdefaultcloseoperation (Exit_on_close);

This.setcontentpane (Createcontentpanel ());

}

Private JPanel Createcontentpanel ()

{

JPanel panel=new JPanel (New BorderLayout ());

Panel.add (Borderlayout.center,createceterpanel ());

return panel;

}

Private JPanel Createceterpanel () {JPanel panel=new JPanel ();

Panel.add (New JLabel ("click Draw"), Jlabel.center);

JButton start=new JButton ("Start"); Panel.add (start);

ScrollPane sp = new ScrollPane (scrollpane.scrollbars_as_needed);

Final JTextArea area = new JTextArea ();

Sp.add (area); Panel.add (Sp,borderlayout.south);

Start.addactionlistener (New ActionListener ()

{

@Override public void actionperformed (ActionEvent arg0) {TODO auto-generated Method stub random random = new random (); Object[]values = new object[6]; HashSet HashSet = new HashSet ();Forint i =0;i <Values.length;i++) {int number = Random.nextint (1000) +1; Hashset.add (number); }values = Hashset.toarray (); Area.append ( "First prize Number:" +values[0] +  "\ n"); Area.append (" second Prize number is: "+values[1]+  "+values[2]+  "second Prize number:" +values[3] + "+values[4]+  "+values[5]+ return panel;}            

public static void Main (string[] args) {new CJ (). setvisible (True);

}

}

Java Learning notes (vi)