View Compilation Error

0_0_23795263_15957\Main.java:1: 错误: 非法字符: '#'
#include <stdio.h>
^
0_0_23795263_15957\Main.java:1: 错误: 需要class, interface或enum
#include <stdio.h>
         ^
0_0_23795263_15957\Main.java:5: 错误: 需要class, interface或enum
    while (~scanf ("%d",&n)){
    ^
0_0_23795263_15957\Main.java:7: 错误: 需要class, interface或enum
    }
    ^
4 个错误