View Compilation Error

0_0_39622529_12979\Main.java:1: 错误: 需要class, interface或enum
int a, b;
^
0_0_39622529_12979\Main.java:1: 错误: 需要class, interface或enum
int a, b;
    ^
0_0_39622529_12979\Main.java:2: 错误: 需要class, interface或enum
        Scanner scanner = new Scanner(System.in);
        ^
0_0_39622529_12979\Main.java:3: 错误: 需要class, interface或enum
        a = scanner.nextInt();
        ^
0_0_39622529_12979\Main.java:4: 错误: 需要class, interface或enum
        b = scanner.nextInt();
        ^
0_0_39622529_12979\Main.java:5: 错误: 需要class, interface或enum
        System.out.println(a);
        ^
0_0_39622529_12979\Main.java:6: 错误: 需要class, interface或enum
        System.out.println(b);
        ^
7 个错误