numberbutton.java

来自「书上的例子」· Java 代码 · 共 18 行

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class NumberButton extends JButton {
    int number;

    public NumberButton(int number) {
        super("" + number);
        this.number = number;
        setForeground(Color.blue);
    }

    public int getNumber() {
        return number;
    }
}