View Compilation Error

0_0_31760870_29602\Main.java:1: 错误: 非法字符: '#'
#include<iostream>
^
0_0_31760870_29602\Main.java:1: 错误: 需要class, interface或enum
#include<iostream>
        ^
0_0_31760870_29602\Main.java:3: 错误: 非法字符: '#'
#define ll long long
^
0_0_31760870_29602\Main.java:3: 错误: 需要class, interface或enum
#define ll long long
        ^
0_0_31760870_29602\Main.java:7: 错误: 需要class, interface或enum
    while(~scanf("%lld %lld",&n,&m))
    ^
0_0_31760870_29602\Main.java:10: 错误: 需要class, interface或enum
    }
    ^
6 个错误