Выкладываю по просьбе Xentar"a код его программы
| Код |
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/**
* Shows a pair of dice that are rolled when the user clicks a button
* that appears below the dice.
*/
public class DicePanelWithButton extends JPanel {
private int die1 = 4; // The values shown on the dice.
private int die2 = 3;
private Timer timer; // Used to animate rolling of the dice.
/**
* The constructor sets up the panel. It creates the button and
* the drawing surface panel on which the dice are drawn and puts
* them into a BorderLayout. It adds an ActionListener to the button
* that rolls the dice when the user clicks the button.
*/
public DicePanelWithButton() {
setLayout(new BorderLayout(2,2));
setBackground(Color.BLUE); // Will show through the gap in the BorderLayout.
setBorder(BorderFactory.createLineBorder(Color.BLUE,2));
JPanel dicePanel = new JPanel() {
public void paintComponent(Graphics g) {
super.paintComponent(g); // fill with background color.
drawDie(g, die1, 10, 10); // Just draw the dice.
drawDie(g, die2, 55, 55);
}
};
dicePanel.setPreferredSize( new Dimension(100,100) );
dicePanel.setBackground( new Color(200,200,255) ); // light blue
add(dicePanel, BorderLayout.CENTER);
JButton rollButton = new JButton("Roll!");
rollButton.addActionListener( new ActionListener() {
public void actionPerformed(ActionEvent evt) {
roll();
}
});
add(rollButton, BorderLayout.SOUTH);
} // end constructor
/**
* Draw a die with upper left corner at (x,y). The die is
* 35 by 35 pixels in size. The val parameter gives the
* value showing on the die (that is, the number of dots).
*/
void drawDie(Graphics g, int val, int x, int y) {
g.setColor(Color.white);
g.fillRect(x, y, 35, 35);
g.setColor(Color.black);
g.drawRect(x, y, 34, 34);
if (val > 1) // upper left dot
g.fillOval(x+3, y+3, 9, 9);
if (val > 3) // upper right dot
g.fillOval(x+23, y+3, 9, 9);
if (val == 6) // middle left dot
g.fillOval(x+3, y+13, 9, 9);
if (val % 2 == 1) // middle dot (for odd-numbered val's)
g.fillOval(x+13, y+13, 9, 9);
if (val == 6) // middle right dot
g.fillOval(x+23, y+13, 9, 9);
if (val > 3) // bottom left dot
g.fillOval(x+3, y+23, 9, 9);
if (val > 1) // bottom right dot
g.fillOval(x+23, y+23, 9,9);
}
/**
* Run an animation that randomly changes the values shown on
* the dice 10 times, every 100 milliseconds.
*/
private void roll() {
if (timer != null)
return;
timer = new Timer(100, new ActionListener() {
int frames = 1;
public void actionPerformed(ActionEvent evt) {
die1 = (int)(Math.random()*6) + 1;
die2 = (int)(Math.random()*6) + 1;
repaint();
frames++;
if (frames == 10) {
timer.stop();
timer = null;
}
}
});
timer.start();
}
} // end class DicePanelWithButton
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| Код |
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/*
* Main.java
*
* Created on 25 Апрель 2007 г., 19:23
*
* To change this template, choose Tools | Options and locate the template under
* the Source Creation and Management node. Right-click the template and choose
* Open. You can then make changes to the template in the Source Editor.
*/
//package javaapplication2;
/**
*
* @author Администратор
*/
public class Main {
/** Creates a new instance of Main */
public Main() {
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// JButton okButton = new JButton("OK");
JFrame window = new JFrame("Кости...");
DicePanelWithButton content = new DicePanelWithButton();
// content.setContentPane(content2);
// content2.add(displayPanel, BorderLayout.CENTER);
// JPanel content = new JPanel();
// content.setLayout(new BorderLayout());
// content.add(displayPanel, BorderLayout.CENTER);
// content.add(okButton, BorderLayout.SOUTH);
window.setContentPane(content);
window.pack();
window.setSize(250,250);
Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize();
window.setLocation( (screensize.width - window.getWidth())/2, (screensize.height - window.getHeight())/2 );
window.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
window.setResizable(false); // User can't change the window's size.
window.setVisible(true);
}
}
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