java如何让这个开关只选择3个选项中的一个？

Question

System.out.println("Please make a selection between 1 and 3");
        int choice = s.nextInt();

        switch (choice)
        {
        case 3: System.out.println("Can a brother get some fries with that?");
        case 2: System.out.println("Cheeseburger it is.... fatso");
        case 1: System.out.println("Good choice, you could use a salad");
        break;
        default: System.out.println("Not a valid selection bruh");
        }

Answer 1

你需要休息一下；在每个案例之后

 switch (choice)
{
    case 3: System.out.println("Can a brother get some fries with that?");
    break;
    case 2: System.out.println("Cheeseburger it is.... fatso");
    break;
   case 1: System.out.println("Good choice, you could use a salad");
   break;
   default: System.out.println("Not a valid selection bruh");
   break;
}

Answer 2

您缺少中断语句

Answer 3

switch (choice) {
    case 3: System.out.println("Can a brother get some fries with that?"); break;
    case 2: System.out.println("Cheeseburger it is.... fatso"); break;
    case 1: System.out.println("Good choice, you could use a salad"); break;
    default: System.out.println("Not a valid selection bruh"); break;
}

我实际上只是在每个case之后添加了break，所以如果它遇到1,2,3或者没有遇到它们，它将退出你的switch