View Compilation Error

0_0_19091701_11150\Main.java:1: 错误: 非法字符: '#'
#include <iostream>
^
0_0_19091701_11150\Main.java:1: 错误: 需要class, interface或enum
#include <iostream>
         ^
0_0_19091701_11150\Main.java:4: 错误: 需要class, interface或enum
int main()
^
0_0_19091701_11150\Main.java:7: 错误: 需要class, interface或enum
  while(cin>>n)
  ^
0_0_19091701_11150\Main.java:14: 错误: 需要class, interface或enum
   else
   ^
0_0_19091701_11150\Main.java:16: 错误: 需要class, interface或enum
   cout<<sum<<endl;
   ^
0_0_19091701_11150\Main.java:17: 错误: 需要class, interface或enum
   cout<<endl;
   ^
0_0_19091701_11150\Main.java:18: 错误: 需要class, interface或enum
  }
  ^
0_0_19091701_11150\Main.java:20: 错误: 需要class, interface或enum
}
^
9 个错误