View Compilation Error

0_0_39323967_4777\Main.java:1: 错误: 需要class, interface或enum
 public  static void main(String[] args) {
                ^
0_0_39323967_4777\Main.java:3: 错误: 需要class, interface或enum
        int i,j;
        ^
0_0_39323967_4777\Main.java:4: 错误: 需要class, interface或enum
        while (true){
        ^
0_0_39323967_4777\Main.java:6: 错误: 需要class, interface或enum
            j=scanner.nextInt();
            ^
0_0_39323967_4777\Main.java:7: 错误: 需要class, interface或enum
            System.out.println(sum(i,j));
            ^
0_0_39323967_4777\Main.java:8: 错误: 需要class, interface或enum
        }
        ^
0_0_39323967_4777\Main.java:10: 错误: 需要class, interface或enum
public static int sum(int m,int n){
              ^
0_0_39323967_4777\Main.java:12: 错误: 需要class, interface或enum
        a=m+n;
        ^
0_0_39323967_4777\Main.java:13: 错误: 需要class, interface或enum
        return a;
        ^
0_0_39323967_4777\Main.java:14: 错误: 需要class, interface或enum
 }
 ^
10 个错误