Question

非常感谢您花时间，我在插入变量m的过程中不断得到一个无限循环，任何人都可以请看看谢谢。

public static void main program7_2(String args [])
{
    Scanner sc = new Scanner (System.in);
    System.out.println("Please enter the first number: ");
    int n = sc.nextInt();
    while((n%2)== 0)
    {
        System.out.println("The number you entered is incorrect please enter an odd number:");
        n = sc.nextInt();
    }
    System.out.println("Please enter the second number: ");
    int m = sc.nextInt();
    while((m%2)== 0)
    {
        System.out.println("The number you entered is incorrect please enter an odd number:");
        m = sc.nextInt();
    }

    int sum =0;

    for (int i = n; n<=m; i++)
    {
        if ((i%2) != 0)
            sum = sum + i;
    }
    System.out.println("Sum of the numbers between "+n+ " and " +m+": " + sum);
}

程序的问题是输入2个奇数并得到奇数之和

谢谢和问候

Answer 1

使用n<=m代替i<=m，而不是i，而不是n

Answer 2

这是错误：

for (int i = n; n<=m; i++) /* terminating condition "n<=m" is never met here */
{
    if ((i%2) != 0)
        sum = sum + i;
}

为什么：此循环会增加i，但终止条件为n<=m，永远不会满足....所以i<n或{{1}哪个适合你终止条件!!

Answer 3

如果你想获得这两者之间的数字总和

public static void main(String args[]) {

        Scanner sc = new Scanner(System.in);
        System.out.println("Please enter the first number: ");
        int n = sc.nextInt();
        while ((n % 2) == 0) {
            System.out.println("The number you entered is incorrect please enter an odd number:");
            n = sc.nextInt();
        }
        System.out.println("Please enter the second number: ");
        int m = sc.nextInt();
        while ((m % 2) == 0) {
            System.out.println("The number you entered is incorrect please enter an odd number:");
            m = sc.nextInt();
        }

         int sum= 0;        

        for (int i = n; i <= m; i++) {

                    sum = sum + i;
        }
        System.out.println("Sum of the numbers  between  " + n + " and " + m + ": " + sum);
    }
}

在询问数字时无限循环

3 个答案: