View Compilation Error

0_0_30850088_22816\Main.java:1: 错误: 非法字符: '#'
#include"stdio"
^
0_0_30850088_22816\Main.java:1: 错误: 需要class, interface或enum
#include"stdio"
        ^
0_0_30850088_22816\Main.java:5: 错误: 需要class, interface或enum
while(scanf("%d",&n)!=EOF)
^
0_0_30850088_22816\Main.java:6: 错误: 需要class, interface或enum
for(int i=0;i<=n;i++)
            ^
0_0_30850088_22816\Main.java:6: 错误: 需要class, interface或enum
for(int i=0;i<=n;i++)
                 ^
0_0_30850088_22816\Main.java:7: 错误: 需要class, interface或enum
{sum+=i;}
        ^
0_0_30850088_22816\Main.java:9: 错误: 需要class, interface或enum
}
^
7 个错误