View Compilation Error

0_0_19420615_6631\Main.java:1: 错误: 非法字符: '#'
#include<stdio.h>
^
0_0_19420615_6631\Main.java:1: 错误: 需要class, interface或enum
#include<stdio.h>
        ^
0_0_19420615_6631\Main.java:5: 错误: 需要class, interface或enum
    while(scanf("%d %d",&a,&b)==2)
    ^
0_0_19420615_6631\Main.java:7: 错误: 需要class, interface或enum
    return 0;
    ^
0_0_19420615_6631\Main.java:8: 错误: 需要class, interface或enum
 }
 ^
5 个错误