View Compilation Error

0_0_35017409_24719\Main.java:1: 错误: 非法字符: '#'
#include<stdio.h>
^
0_0_35017409_24719\Main.java:1: 错误: 需要class, interface或enum
#include<stdio.h>
        ^
0_0_35017409_24719\Main.java:5: 错误: 需要class, interface或enum
    while(scanf("%d",&n)!=EOF)
    ^
0_0_35017409_24719\Main.java:8: 错误: 需要class, interface或enum
        while(n)
        ^
0_0_35017409_24719\Main.java:11: 错误: 需要class, interface或enum
            a[i]=n%2;
            ^
0_0_35017409_24719\Main.java:12: 错误: 需要class, interface或enum
            n/=2;
            ^
0_0_35017409_24719\Main.java:13: 错误: 需要class, interface或enum
        }
        ^
0_0_35017409_24719\Main.java:14: 错误: 需要class, interface或enum
        for(i;i>0;i--)
              ^
0_0_35017409_24719\Main.java:14: 错误: 需要class, interface或enum
        for(i;i>0;i--)
                  ^
0_0_35017409_24719\Main.java:16: 错误: 需要class, interface或enum
        printf("\n");
        ^
0_0_35017409_24719\Main.java:17: 错误: 需要class, interface或enum
    }
    ^
0_0_35017409_24719\Main.java:19: 错误: 需要class, interface或enum
}
^
12 个错误