摘要：
package homework;import javax.swing.JOptionPane;public class suanshu { public static void main(String agrs[]) { String firstNumber,secon... 阅读全文
摘要：
一：枚举package homework;public class EnumTest { public static void main(String[] args) { Size s=Size.SMALL; Size t=Size.LARGE; //... 阅读全文