Two-color ball lottery system written in Java

Step 1: This is our two-color ball main class, including the interface design!

Package ball; import java. awt. borderLayout; import java. awt. color; import java. awt. font; import java. awt. image; import java. awt. toolkit; import java. awt. event. actionEvent; import java. awt. event. actionListener; import java.net. URL; import javax. swing. JButton; import javax. swing. JFrame; import javax. swing. JLabel; import javax. swing. JOptionPane; import javax. swing. JPanel; import javax. swing. JTextField;/***** @ autho R huyongjian Oracle (Compus Solution Group) * @ Date 2013-7-18 * @ version 2.0 * @ since JDK1.6 recommended) Copy Right Information compus solution group ide: Eclipse class: ball two-color Ball */public class Ball extends JFrame implements ActionListener {JPanel pn1, pn2, pn3; // The form has three JTextField tf1, tf2; // two text boxes JLabel lb1, lb2, lb3; // JButton btn1, btn2, btn3; // The three buttons boolean flag = false; // define a flag Ball () {pn1 = new JPanel (); pn2 = New JPanel (); pn3 = new JPanel (); tf1 = new JTextField ("red ball", 20); // length 20 tf2 = new JTextField ("blue ball ", 8); // length 8 btn1 = new JButton ("START"); btn2 = new JButton ("stop"); btn3 = new JButton ("about"); this. setLayout (new BorderLayout (); this. add (pn1, BorderLayout. NORTH); // border layout of the form, which is CENTER this by default. add (pn2, BorderLayout. CENTER); this. add (pn3, BorderLayout. SOUTH); lb2 = new JLabel ("six balls in red ball from 1 to 33"); lb2.setForegroun D (Color. black); lb3 = new JLabel ("select a ball from 1 to 16"); lb3.setForeground (Color. black); // FlowLayout flow = new FlowLayout (); // pn1.setLayout (flow); Font font1 = new Font ("", Font. BOLD, 12); pn1.add (lb2); pn1.add (tf1); tf1.setForeground (Color. red); tf1.setFont (font1); pn1.add (lb3); pn1.add (tf2); tf2.setForeground (Color. blue); tf2.setFont (font1); Font fnt = new Font (" 文 ", Font. BOLD, 20); lb1 = new JLabel ("The two-color ball pool has reached 458398235 yuan. Good luck !!! "); Lb1.setFont (fnt); lb1.setForeground (Color. red); pn2.add (lb1); pn3.add (btn1); pn3.add (btn2); pn3.add (btn3); merge (this); btn2.addActionListener (this); btn3.addActionListener (this); this. setSize (600,150); // form size // center the display position this. setLocationRelativeTo (null); // center the display position // modify the icon URL in the upper left corner of java = this. getClass (). getResource ("ball.png"); Image img = Toolkit. getdefatooltoolkit (). getImage (url); this. setIconImage (img); this. setdefaclocloseoperation (JFrame. EXIT_ON_CLOSE); // when the program is closed, run javaw.exe this. setTitle ("two-color automatic lottery"); this. setVisible (true); this. setResizable (false); start () ;}@ Override public void actionreceivmed (ActionEvent e) {// TODO Auto-generated method stub if (e. getSource () = btn1) {btn1.setEnabled (false); btn2.setEnabled (true); flag = true;} if (e. getSource () = btn2) {btn2.setEnabled (false); btn1.setEnabled (true); flag = false;} if (e. getSource () = btn3) {JOptionPane. showMessageDialog (null, "
Step 2: Next is our main function class, which calls the Ball () method we wrote!

Package ball;/***** @ author huyongjian Oracle (Compus Solution Group) * @ Date 2013-7-18 * @ version 2.0 * @ since JDK1.6 recommended) Copy Right Information compus solution group ide: eclipse class: BallTest test */public class BallTest {public static void main (String [] args) {new Ball ();}}
For more source code written in Java, please go to the group: 160243674 -- Java!
Effect display:
650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/11260HS4-0.png "title =" Ball.png "/>


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