找不出问题在哪里，方法名一直报错！

Question

public class YY { private int f(){ int[] s={18,23,21,19,25,29,17};     int max=0;    for(int i=0;i<s.length;i++){    if(max<s[i])    max=s[i];    return max;    }                } public static void main(String[] args){ YY pp=new YY();   pp.f(); System.out.println("最大年龄为："+pp.f()); } }

Answer 1

private int f()；这个方法缺少返回值，将return max;挪出来放到for循环后边；如下：

private int f() {

int[] s = { 18, 23, 21, 19, 25, 29, 17 };

int max = 0;

for (int i = 0; i < s.length; i++) {

if (max < s[i])

max = s[i];

}

return max;

}