View Compilation Error

0_0_38890844_29116\Main.java:1: 错误: 需要class, interface或enum
 public static void main(String[] args) {
               ^
0_0_38890844_29116\Main.java:3: 错误: 需要class, interface或enum
        int N = scanner.nextInt();
        ^
0_0_38890844_29116\Main.java:5: 错误: 需要class, interface或enum
       while(N--!=0){
       ^
0_0_38890844_29116\Main.java:7: 错误: 需要class, interface或enum
           int b = scanner.nextInt();
           ^
0_0_38890844_29116\Main.java:8: 错误: 需要class, interface或enum
           int ans = a + b;
           ^
0_0_38890844_29116\Main.java:9: 错误: 需要class, interface或enum
           System.out.println(ans);
           ^
0_0_38890844_29116\Main.java:10: 错误: 需要class, interface或enum
       }
       ^
7 个错误