View Compilation Error

0_0_38964073_27721\Main.java:1: 错误: 需要class, interface或enum
	public static void main(String args[]) {
	              ^
0_0_38964073_27721\Main.java:3: 错误: 需要class, interface或enum
		Integer a = in.nextInt();
		^
0_0_38964073_27721\Main.java:4: 错误: 需要class, interface或enum
	    Integer b = in.nextInt();
	    ^
0_0_38964073_27721\Main.java:5: 错误: 需要class, interface或enum
		System.out.println(a+b);
		^
0_0_38964073_27721\Main.java:6: 错误: 需要class, interface或enum
	}
	^
5 个错误