水仙花--九九乘法表（java-- 函数调用）

package demo;

import java.util.Scanner;
public class demo3 {
    public static void main(String[] args) {
        int week = 0;
        do {
            System.out.println("水仙花---1  九九乘法表---2  退出---0");
            System.out.println("请输入你的选项：");
            Scanner yn = new Scanner(System.in);
            week = yn.nextInt();
            xz(week);
        } while (week != 0);
    }
    public static void xz(int week) {
        switch (week) {
            case 1:
                sxh();
                break;
            case 2:
                jiu();
                break;
            case 3:
                break;
            default:
                System.out.println("已退出");
                break;
        }
    }

    public static void sxh(){
        Scanner sc = new Scanner(System.in);
        System.out.print("请输入一个三位数：");
        int t=1;
        while(t!=0){
            int num = sc.nextInt();
            int g = num % 10;     //个位
            int s = (num / 10) % 10;    //十位
            int b = num / 100;    //百位
            int sum = (g * g * g) + (s * s * s) + (b * b * b);
            if (sum == num) {
                System.out.println("该数为水仙花数！"+sum);
            }
            else {
                System.out.println("该数不为水仙花数！");
            }
            System.out.println("若继续判断水仙花数请输入yes,否则请输入no! 1=yes  0=no :");
            System.out.println("请输入0或1");
            t=sc.nextInt();

        }
    }
    public static void jiu() {
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= i; j++)

                System.out.print(j + "*" + i + "=" + (i * j) + "  ");
            System.out.println();
        }
    }
}