java - 将流程从 for 循环转移到 switch case

Question

请有人向我解释一下如何将控制流从 for 循环转移到代码中的 switch case

for (int i = 0; i < 3; i++) {
    String answer;
    System.out.println("Are You Sure ?");
    answer = input.next();

    if (answer.equals("y")) {
        break OUTER;
    }

}

switch(operator) {
case "add":
    result = num1 + num2;
    System.out.printf("%d + %d is equal to %d", num1, num2, result);
    break;
case "subtract":
    result = num2 - num1;
    System.out.printf("%d - %d is equal to %d", num1, num2, result);
    break;
case "multiply":
    result = num2 * num1;
    System.out.printf("%d x %d is equal to %d", num1, num2, result);
    break;  
case "divide":
    result = num2 / num1;
    System.out.printf("%d / %d is equal to %d", num1, num2, result);
    break;    
}

Answer 1

For 循环有一个条件表达式，您已经在尝试 3 次后使用它来退出。您可以修改表达式以考虑答案。像这样的事情:

String answer = "";

for (int i = 0; i < 3 || !answer.equals("y"); i++) {
    System.out.println("Are You Sure ?");
    answer = input.next();
}