View Compilation Error

0_0_31610894_18939\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_31610894_18939\Main.java:3: 错误: 需要class, interface或enum
		Scanner sc = new Scanner(System.in);
		^
0_0_31610894_18939\Main.java:4: 错误: 需要class, interface或enum
		while(true)
		^
0_0_31610894_18939\Main.java:7: 错误: 需要class, interface或enum
			b=sc.nextInt();
			^
0_0_31610894_18939\Main.java:8: 错误: 需要class, interface或enum
			c= a+ b;
			^
0_0_31610894_18939\Main.java:9: 错误: 需要class, interface或enum
			System.out.println(c);
			^
0_0_31610894_18939\Main.java:10: 错误: 需要class, interface或enum
		}
		^
7 个错误