代码如下
import java.awt.*;import javax.swing.*;//图形计数器JCounter三位class JCounter extends JPanel { private static final long serialVersionUID = 1L; private ImageIcon [] numSet = { new ImageIcon("image/c0.gif"), new ImageIcon("image/c1.gif"), new ImageIcon("image/c2.gif"), new ImageIcon("image/c3.gif"), new ImageIcon("image/c4.gif"), new ImageIcon("image/c5.gif"), new ImageIcon("image/c6.gif"), new ImageIcon("image/c7.gif"), new ImageIcon("image/c8.gif"), new ImageIcon("image/c9.gif"),
}; private JButton [] counter = { new JButton(numSet[0]), new JButton(numSet[0]), new JButton(numSet[0])}; private int counterNum; private Insets space; public JCounter() { this(0);
} public JCounter(int num) { super();
setSize(23, 39);
space = new Insets(0,0,0,0); this.counterNum = num; for (int i=0; i< 3; i++){
counter[i].setSize(13,23);
counter[i].setMargin(space);
add(counter[i]);
}
this.setVisible(true);
resetImage();
}
public int getCounterNum() {
return(counterNum);
}
private void setCounterNum(int num){ this.counterNum = num;
}
private void resetImage() { int ones, tens, hundreds;
ones = counterNum % 10 ;
tens = counterNum % 100/10;
hundreds = (counterNum) % 1000/100; this.counter[0].setIcon(numSet[hundreds]); this.counter[1].setIcon(numSet[tens]); this.counter[2].setIcon(numSet[ones]);
}
public void resetCounter(int num) {
setCounterNum(num);
resetImage(); this.repaint();
} public static void main(String[] args) {
JFrame jf = new JFrame("Test");
jf.setSize(23,39);
JCounter jc = new JCounter();
jf.setContentPane(jc);
jf.show();
jc.resetCounter(394);
}
}效果图
<ignore_js_op>
详细说明：http://java.662p.com/thread-3209-1-1.html
原文地址：http://9888731.blog.51cto.com/9878731/1610957
