View Compilation Error

0_0_28956720_3836\Main.java:2: 错误: 需要class, interface或enum
	public static boolean isPrime(int n) {
	              ^
0_0_28956720_3836\Main.java:4: 错误: 需要class, interface或enum
		for (int j = 2; j <= Math.sqrt(n); j++) {
		^
0_0_28956720_3836\Main.java:4: 错误: 需要class, interface或enum
		for (int j = 2; j <= Math.sqrt(n); j++) {
		                ^
0_0_28956720_3836\Main.java:4: 错误: 需要class, interface或enum
		for (int j = 2; j <= Math.sqrt(n); j++) {
		                                   ^
0_0_28956720_3836\Main.java:7: 错误: 需要class, interface或enum
				break;
				^
0_0_28956720_3836\Main.java:8: 错误: 需要class, interface或enum
			}
			^
0_0_28956720_3836\Main.java:11: 错误: 需要class, interface或enum
	}
	^
0_0_28956720_3836\Main.java:13: 错误: 需要class, interface或enum
	public static void main(String[] args) {
	              ^
8 个错误