View Compilation Error

0_0_39645303_6582\Main.java:28: 错误: 需要class, interface或enum
    public static void Primes() {
                  ^
0_0_39645303_6582\Main.java:30: 错误: 需要class, interface或enum
          int [] sum=new int[N];
          ^
0_0_39645303_6582\Main.java:31: 错误: 需要class, interface或enum
          Arrays.fill(sum,0)
          ^
0_0_39645303_6582\Main.java:33: 错误: 需要class, interface或enum
          for(int i=2;i<Math.sqrt((double)N);i++) {
          ^
0_0_39645303_6582\Main.java:33: 错误: 需要class, interface或enum
          for(int i=2;i<Math.sqrt((double)N);i++) {
                      ^
0_0_39645303_6582\Main.java:33: 错误: 需要class, interface或enum
          for(int i=2;i<Math.sqrt((double)N);i++) {
                                             ^
0_0_39645303_6582\Main.java:35: 错误: 需要class, interface或enum
                for(int j=i*i;j<N;j+=i)
                              ^
0_0_39645303_6582\Main.java:35: 错误: 需要class, interface或enum
                for(int j=i*i;j<N;j+=i)
                                  ^
0_0_39645303_6582\Main.java:37: 错误: 需要class, interface或enum
          }
          ^
9 个错误