View Compilation Error

0_0_27005658_28160\Main.java:1: 错误: 非法字符: '#'
#include<stdio.h>
^
0_0_27005658_28160\Main.java:1: 错误: 需要class, interface或enum
#include<stdio.h>
        ^
0_0_27005658_28160\Main.java:5: 错误: 需要class, interface或enum
	while(~scanf("%lf%lf",&a,&b))
	^
0_0_27005658_28160\Main.java:8: 错误: 需要class, interface或enum
		else	printf("YES\n");
		^
0_0_27005658_28160\Main.java:9: 错误: 需要class, interface或enum
	}
	^
0_0_27005658_28160\Main.java:11: 错误: 需要class, interface或enum
}
^
6 个错误