继续收到' else'没有'如果'错误

时间:2015-07-15 05:33:42

标签: java if-statement recursion tracing

递归调用将在运行时堆栈上构建,然后在运行时堆栈“展开”时以相反的顺序计算值。第18行是我收到错误的地方,但我对于错误的描述是空白的。编译完成。以下文件未编译: 找到1个错误:   [line:18]} else { 错误:'否则'没有'如果'

public class Recursion {
    public static void main(String[] args) {
        int n = 7;
        //Test out the factorial 
        System.out.println(n + " factorial equals ");
        System.out.println(Recursion.factorial(n));
        System.out.println();
    }

    public static int factorial(int n) {
        int temp;
        System.out.println("Method call -- calculating Factorial of: " + n); 
        {
            int temp;
            if (n == 0) {
                return 1;
            }
        } else {
            temp = factorial(n - 1);
            System.out.println("Factorial of: " + (n - 1) + " is " + temp);
            return (temp * n);
        }
    }
}

0 个答案:

没有答案