return n为啥是错的啊？代码为啥不能执行？、？？代码：找到数组中的0；替换成1；返回找到0的个数

Question

public class Test03 {
public static void main(String[] args) {
int []shuzu={23,20,31,504,801};
shuchu(shuzu);
int n=find(shuzu);
System.out.println("0的个数n："+n);
shuchu(shuzu);
}
public static int find (int []group){
for(int i=0;i<group.length;i++){
int n=0;
if(group[i]==0){
group[i]=1;
n++;
}
}
return n;
}
public static void shuchu(int []group){
for(int i=0;i<group.length;i++){
System.out.print(group[i]+" ");

    }System.out.println();
}

}

Answer 1

int n=0 应该放到循环外边？