Java:在我的应用程序中不能再使用System.out.println()

Question

我做了一点"猜测随机数"；接受用户输入并检查其是否等于使用for循环生成的数字的游戏。如果是，应用程序将打印一条祝贺语句，然后脱离循环。如果没有(并且失败了五次(，应用程序应该打印出一个game-over-type语句。

出于某种原因，我的game-over语句不会打印，尽管其他所有println((语句都打印。为什么它不起作用？

以下是我的代码：

import java.util.Random;
import java.util.Scanner;
public class randgame_draft {
public static void main(String[] args) {
System.out.println("Welcome to RandGame. What's your name?");
Scanner scanner = new Scanner(System.in);
String answer = scanner.next();
System.out.println("Hello, " + answer + ". Shall we begin?");
Scanner ask = new Scanner(System.in);
String response = ask.next();
if (response.equals("yes")) {
System.out.println("Alright!");
} else {
System.out.println("Oh, okay. Later!");
return;
}
Random random = new Random();
int rand = random.nextInt(20) + 1;
for (int i = 0; i < 5; i++) {
System.out.println(answer + ", please provide a random number between 1 and 20.");
Scanner begin = new Scanner(System.in);
int end = begin.nextInt();
System.out.println("you chose " + end);
if (end != rand && end > rand) {
System.out.println("Hint: guess lower");
} else if (end != rand && end < rand) {
System.out.println("Hint: guess higher");
} else if (end == rand) {
System.out.println("congratulations, you are correct!");
System.out.println("answer was " + rand);
System.out.println("thanks for playing, " + answer + "!");
return;
} else {
System.out.println("Sorry " + answer + ". the answer was " + rand + ". Game Over.");
}
}
}
}

Answer 1

看看你的条件：

1) end > rand //end != rand  is redundant
2) end < rand
3) end == rand
4) else print

你能想象end不小于、大于或等于rand的任何场景吗？

你应该在循环结束后打印你的信息，而玩家没有猜到数字。