View Compilation Error

0_0_30380343_24369\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args)
              ^
0_0_30380343_24369\Main.java:3: 错误: 需要class, interface或enum
     int a=nextInt();
     ^
0_0_30380343_24369\Main.java:4: 错误: 需要class, interface或enum
     int b=nextInt();
     ^
0_0_30380343_24369\Main.java:5: 错误: 需要class, interface或enum
     System.out.print(a+b);
     ^
4 个错误