...的 界面,包含 0-9 个 数字 , A-F个字母,采用 GridLayout布局...答:import java.awt.*;import javax.swing.*;public class MyCalculator extends JFrame{public MyCalculator() {String ss1 = "0123456789ABCDEF";String[] ss2 = {"+","-","*","/","√ ̄","aⁿ","CE","="};//有些字符不在GBK中,所以文本使用了UTF-8编码。如果要用GBK编码,...