View Compilation Error

0_0_14933295_13710\Main.java:1: 错误: 非法字符: '#'
#include<stdio.h>
^
0_0_14933295_13710\Main.java:1: 错误: 需要class, interface或enum
#include<stdio.h>
        ^
0_0_14933295_13710\Main.java:2: 错误: 非法字符: '#'
#include<string.h>
^
0_0_14933295_13710\Main.java:7: 错误: 需要class, interface或enum
while(scanf("%lf %lf %lf %lf",&x1,&y1,&x2,&y2)!=EOF)
^
0_0_14933295_13710\Main.java:10: 错误: 需要class, interface或enum
  d=pow(d,0.5);
  ^
0_0_14933295_13710\Main.java:11: 错误: 需要class, interface或enum
  printf("%.2lf\n",d);
  ^
0_0_14933295_13710\Main.java:12: 错误: 需要class, interface或enum
  }
  ^
0_0_14933295_13710\Main.java:14: 错误: 需要class, interface或enum
}
^
8 个错误