View Compilation Error

0_0_28212965_18023\Main.java:1: 错误: 非法字符: '#'
#include<iostream>
^
0_0_28212965_18023\Main.java:1: 错误: 需要class, interface或enum
#include<iostream>
        ^
0_0_28212965_18023\Main.java:3: 错误: 需要class, interface或enum
int main()
^
0_0_28212965_18023\Main.java:6: 错误: 需要class, interface或enum
  while(cin>>n)
  ^
0_0_28212965_18023\Main.java:8: 错误: 需要class, interface或enum
  for(i=0;i<n;i++)
          ^
0_0_28212965_18023\Main.java:8: 错误: 需要class, interface或enum
  for(i=0;i<n;i++)
              ^
0_0_28212965_18023\Main.java:11: 错误: 需要class, interface或enum
      sum=sum+a;
      ^
0_0_28212965_18023\Main.java:12: 错误: 需要class, interface或enum
    }
    ^
0_0_28212965_18023\Main.java:14: 错误: 需要class, interface或enum
   sum=0;
   ^
0_0_28212965_18023\Main.java:15: 错误: 需要class, interface或enum
  }
  ^
0_0_28212965_18023\Main.java:17: 错误: 需要class, interface或enum
}
^
11 个错误