View Compilation Error

0_0_29317708_8267\Main.java:1: 错误: 非法字符: '#'
#include <iostream>
^
0_0_29317708_8267\Main.java:1: 错误: 需要class, interface或enum
#include <iostream>
         ^
0_0_29317708_8267\Main.java:5: 错误: 需要class, interface或enum
int main()
^
0_0_29317708_8267\Main.java:8: 错误: 需要class, interface或enum
    while(cin>>a>>b){
    ^
0_0_29317708_8267\Main.java:12: 错误: 需要class, interface或enum
            continue;
            ^
0_0_29317708_8267\Main.java:13: 错误: 需要class, interface或enum
            }
            ^
0_0_29317708_8267\Main.java:15: 错误: 需要class, interface或enum
    while(b){
    ^
0_0_29317708_8267\Main.java:18: 错误: 需要class, interface或enum
        a=a*a%10;
        ^
0_0_29317708_8267\Main.java:19: 错误: 需要class, interface或enum
        b/=2;
        ^
0_0_29317708_8267\Main.java:20: 错误: 需要class, interface或enum
    }
    ^
0_0_29317708_8267\Main.java:22: 错误: 需要class, interface或enum
    }
    ^
0_0_29317708_8267\Main.java:24: 错误: 需要class, interface或enum
}
^
12 个错误