View Compilation Error

0_0_13893642_11577\Main.java:3: 错误: 需要class, interface或enum
public static void main(String[] args) 
              ^
0_0_13893642_11577\Main.java:6: 错误: 需要class, interface或enum
	    while(sc.hasNextInt())
	    ^
0_0_13893642_11577\Main.java:9: 错误: 需要class, interface或enum
	     int b=sc.nextInt();
	     ^
0_0_13893642_11577\Main.java:10: 错误: 需要class, interface或enum
	     System.out.println(a+b);
	     ^
0_0_13893642_11577\Main.java:11: 错误: 需要class, interface或enum
	    }
	    ^
5 个错误