View Compilation Error

0_0_39014243_5297\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_39014243_5297\Main.java:3: 错误: 需要class, interface或enum
		while (scanner.hasNext()) {
		^
0_0_39014243_5297\Main.java:5: 错误: 需要class, interface或enum
			int m=scanner.nextInt();
			^
0_0_39014243_5297\Main.java:6: 错误: 需要class, interface或enum
			double ans=0;
			^
0_0_39014243_5297\Main.java:7: 错误: 需要class, interface或enum
			for (int i = 0; i < m; i++) {
			^
0_0_39014243_5297\Main.java:7: 错误: 需要class, interface或enum
			for (int i = 0; i < m; i++) {
			                ^
0_0_39014243_5297\Main.java:7: 错误: 需要class, interface或enum
			for (int i = 0; i < m; i++) {
			                       ^
0_0_39014243_5297\Main.java:9: 错误: 需要class, interface或enum
				n=Math.sqrt(n);
				^
0_0_39014243_5297\Main.java:10: 错误: 需要class, interface或enum
			}
			^
0_0_39014243_5297\Main.java:12: 错误: 需要class, interface或enum
		}
		^
10 个错误