View Compilation Error

0_0_21665818_5915\Main.java:2: 错误: 需要class, interface或enum
 public static void main(String[] args)   
               ^
0_0_21665818_5915\Main.java:6: 错误: 需要class, interface或enum
	        while(scan.hasNext())
	        ^
0_0_21665818_5915\Main.java:8: 错误: 需要class, interface或enum
	         int b=scan.nextInt();
	         ^
0_0_21665818_5915\Main.java:9: 错误: 需要class, interface或enum
	        int c=a+b;
	        ^
0_0_21665818_5915\Main.java:10: 错误: 需要class, interface或enum
	        System.out.println(c); 
	        ^
0_0_21665818_5915\Main.java:11: 错误: 需要class, interface或enum
	        }
	        ^
6 个错误