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问题描述
我试图从一个方法中获取用户输入,并在另一个方法中使用它。我很困惑,因为userMove被定义为int类型,所以无法从结果类型为void错误的方法返回值。
I am trying to take the user input from one method and use it in another. I am confused about the cannot return a value from method whose result type is void error because "userMove" is defined as type int.
public static void move() { System.out.println("What do you want to do?"); Scanner scan = new Scanner(System.in); int userMove = scan.nextInt(); return userMove; } public static void usersMove(String playerName, int gesture) { int userMove = move(); if (userMove == -1) { break; }
推荐答案
当您返回 int 时,将 void 更改为 int
Simply change void to int as you're returning an int.
public static int move() { System.out.println("What do you want to do?"); Scanner scan = new Scanner(System.in); int userMove = scan.nextInt(); return userMove; }
A void 意味着它不返回任何东西(即没有返回语句),任何其他 void 并且需要返回。
A void method means it returns nothing (ie. no return statement), anything other then void and a return is required.
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