View Compilation Error

0_0_23480458_3719\Main.java:1: 错误: 需要class, interface或enum
	public static void main(String[] args) {
	              ^
0_0_23480458_3719\Main.java:4: 错误: 需要class, interface或enum
		int A = a.nextInt();
		^
0_0_23480458_3719\Main.java:5: 错误: 需要class, interface或enum
		Scanner b = new Scanner(System.in);
		^
0_0_23480458_3719\Main.java:6: 错误: 需要class, interface或enum
		int B = b.nextInt();
		^
0_0_23480458_3719\Main.java:7: 错误: 需要class, interface或enum
		int c=A+B;
		^
0_0_23480458_3719\Main.java:8: 错误: 需要class, interface或enum
		System.out.println(b);
		^
0_0_23480458_3719\Main.java:9: 错误: 需要class, interface或enum
	}
	^
7 个错误