View Compilation Error

0_0_39308313_5621\Main.java:1: 错误: 需要class, interface或enum
public static void main() {
              ^
0_0_39308313_5621\Main.java:4: 错误: 需要class, interface或enum
        int num1 = scanner.nextInt();
        ^
0_0_39308313_5621\Main.java:5: 错误: 需要class, interface或enum
        int num2 = scanner.nextInt();
        ^
0_0_39308313_5621\Main.java:7: 错误: 需要class, interface或enum
        int sum = num1 + num2;
        ^
0_0_39308313_5621\Main.java:9: 错误: 需要class, interface或enum
        System.out.println(num1+num2);
        ^
0_0_39308313_5621\Main.java:11: 错误: 需要class, interface或enum
        scanner.close();
        ^
0_0_39308313_5621\Main.java:12: 错误: 需要class, interface或enum
    }
    ^
7 个错误