循环语句结构

    switch 基本格式

根据键盘录入的星期数来显示今天的减肥活动
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入星期");

        int a = sc.nextInt();

        switch (a){
            case 1:
                System.out.println("跑步");
                break;
            case 2:
                System.out.println("游泳");
                break;
            case 3:
                System.out.println("慢走");
                break;
            case 4:
                System.out.println("动感单车");
                break;
            case 5:
                System.out.println("拳击");
                break;
            case 6:
                System.out.println("爬山");
                break;
            case 7:
                System.out.println("好好吃一顿");
                break;
            default:
                System.out.println("哥们,你别太抽象");
                break;

for语句

        for循环的基本结构
        for (int i = 1; i <= 5;i++){
            System.out.println("张子豪");
        }
    }

Scanner sc = new Scanner(System.in);
        System.out.println("请输入第一个值");
        int a = sc.nextInt();
        System.out.println("请输入第二个值");
        int b = sc.nextInt();
//        定义变量表示符合要求的数字累加
        int count = 0;
        for (int i = a;i<=b;i++){
//            System.out.println(i);
            if (i % 3 ==0 && i % 5 ==0){
//                System.out.println(i);
                count++;
            }
        }