View Compilation Error

0_0_18021571_25453\Main.java:1: 错误: 非法字符: '#'
#include<stdio.h>
^
0_0_18021571_25453\Main.java:1: 错误: 需要class, interface或enum
#include<stdio.h>
        ^
0_0_18021571_25453\Main.java:5: 错误: 需要class, interface或enum
	while(scanf("%IX%IX",&a,&b)!=EOF)
	^
0_0_18021571_25453\Main.java:8: 错误: 需要class, interface或enum
		if(sum<0) printf("-%IX\n",-sum);
		^
0_0_18021571_25453\Main.java:9: 错误: 需要class, interface或enum
		else printf("%IX\n",sum);
		^
0_0_18021571_25453\Main.java:10: 错误: 需要class, interface或enum
	}
	^
0_0_18021571_25453\Main.java:12: 错误: 需要class, interface或enum
}
^
7 个错误