摘要：import java.util.Scanner;public class Circle2{public static void main(String args[]){Scanner sc = new Scanner (System.in);System.out.println("请选择圆、长方形、三角形");int i = sc.nextInt();final double PI = 3.14;double c,s;switch (i){case 1 :{System.out.println("请输入圆的半径：");double r = sc.nex 阅读全文

摘要：一、public class CustMMenu{public static void main(String args[]){System.out.println("安博购物管理系统 > 客户信息管理");System.out.println();System.out.println("* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *");System.out.println("");System.out.printl 阅读全文