View Compilation Error

0_0_37232950_20857\Main.java:1: 错误: 需要class, interface或enum
Scanner sc=new Scanner(System.in);
^
0_0_37232950_20857\Main.java:3: 错误: 需要class, interface或enum
		int n=sc.nextInt();
		^
0_0_37232950_20857\Main.java:4: 错误: 需要class, interface或enum
		int sum=0;
		^
0_0_37232950_20857\Main.java:5: 错误: 需要class, interface或enum
		for (int i=1;i<=n;i++){
		^
0_0_37232950_20857\Main.java:5: 错误: 需要class, interface或enum
		for (int i=1;i<=n;i++){
		             ^
0_0_37232950_20857\Main.java:5: 错误: 需要class, interface或enum
		for (int i=1;i<=n;i++){
		                  ^
0_0_37232950_20857\Main.java:7: 错误: 需要class, interface或enum
		}
		^
7 个错误