计算器



/**

* @(#)Computer.java

*

*

* @author

* @version 1.00 2010/7/21

*/

import java.awt.*

import java.awt.event.*

import javax.swing.*

import java.lang.*



public class Computer {

private JFrame frame

private JButton -/**

* @(#)Computer.java

*

*

* @author

* @version 1.00 2010/7/21

*/

import java.awt.*

import java.awt.event.*

import javax.swing.*

import java.lang.*



public class Computer {

　 private JFrame frame

　 private JButton