View Compilation Error

0_0_36640079_12316\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_36640079_12316\Main.java:3: 错误: 需要class, interface或enum
        Scanner in = new Scanner(System.in);
        ^
0_0_36640079_12316\Main.java:4: 错误: 需要class, interface或enum
        while (true){
        ^
0_0_36640079_12316\Main.java:6: 错误: 需要class, interface或enum
            int m = in.nextInt();
            ^
0_0_36640079_12316\Main.java:7: 错误: 需要class, interface或enum
            if(n == 0 && m == 0){
            ^
0_0_36640079_12316\Main.java:9: 错误: 需要class, interface或enum
            }
            ^
0_0_36640079_12316\Main.java:11: 错误: 需要class, interface或enum
        }
        ^
7 个错误