文件名称：public class Calculator extends JApplet implements ActionListener
文件大小：6KB
文件格式：WAV
更新时间：2012-07-13 22:48:50
final String[] KEYS
ate final String[] COMMAND={"Backspace","CE","C"}; private final String[] M={" ","MC","MR","MS","M+"}; private JButton keys[]=new JButton[KEYS.length]; private JButton commands[]=new JButton[COMMAND.len