View Compilation Error

0_0_31282460_22764\Main.java:1: 错误: 非法字符: '#'
 #include <stdio.h> 
 ^
0_0_31282460_22764\Main.java:1: 错误: 需要class, interface或enum
 #include <stdio.h> 
          ^
0_0_31282460_22764\Main.java:5: 错误: 需要class, interface或enum
    while (scanf("%d %d", &a, &b) == 2){
    ^
0_0_31282460_22764\Main.java:7: 错误: 需要class, interface或enum
    }
    ^
0_0_31282460_22764\Main.java:10: 错误: 需要class, interface或enum
 }
 ^
5 个错误