Java if 语句终止错误

Question

我尝试创建基本的数字查找游戏(1-100)。 但程序总是在第二次尝试后终止。

代码:

Random rnd = new Random();
int rndm  = rnd.nextInt(100);

int tryn;
Scanner sc = new Scanner(System.in);
System.out.print("Guess: ");
tryn = sc.nextInt();

if (tryn == rndm) {
        System.out.println("You win.");
        sc.close();
    }
    else if (tryn > rndm) {
        System.out.println("Too high.");
        System.out.print("Guess again: ");
        tryn = sc.nextInt();
    }
    else {
        System.out.println("Too low.");
        System.out.print("Guess again: ");
        tryn = sc.nextInt();    
    }

当我运行如下输出时:

<terminated> test2 [Java Application]...
Guess: 30
Too low.
Guess again: 50

为什么我的程序不循环？感谢您的帮助。

Answer 1

在代码中添加循环...

while(tryn != rndm){