View Compilation Error

0_0_13675386_768\Main.java:1: 错误: 非法字符: '#'
#include <iostream>
^
0_0_13675386_768\Main.java:1: 错误: 需要class, interface或enum
#include <iostream>
         ^
0_0_13675386_768\Main.java:2: 错误: 非法字符: '#'
#include <cstdio>
^
0_0_13675386_768\Main.java:5: 错误: 需要class, interface或enum
int main()
^
0_0_13675386_768\Main.java:8: 错误: 需要class, interface或enum
    cout<<"# Cards  Overhang"<<endl;
    ^
0_0_13675386_768\Main.java:9: 错误: 需要class, interface或enum
    while((cin>>n)>0)
    ^
0_0_13675386_768\Main.java:12: 错误: 需要class, interface或enum
        for(int j=1; j<=n; j++)
        ^
0_0_13675386_768\Main.java:12: 错误: 需要class, interface或enum
        for(int j=1; j<=n; j++)
                     ^
0_0_13675386_768\Main.java:12: 错误: 需要class, interface或enum
        for(int j=1; j<=n; j++)
                           ^
0_0_13675386_768\Main.java:14: 错误: 需要class, interface或enum
        printf("%5d%10.3lf\n",n,sum);
        ^
0_0_13675386_768\Main.java:15: 错误: 需要class, interface或enum
    }
    ^
0_0_13675386_768\Main.java:17: 错误: 需要class, interface或enum
}
^
12 个错误