Series

15. Program

How to Print this series ?

2 3 5 11 23 29 41 53 83 89....N

import java.util.Scanner;
class Series4
{ static  boolean isprime(int n)
 {
  for(int i=2; i <= n/2;i++)
  {
   if(n%i==0){
   return false;
   }
  }
  return true;
 }
 public static void main(String[] args)
 {
  Scanner sc = new Scanner(System.in);
  System.out.print("Enter the limit : ");
  int n = sc.nextInt();
  if(n>2)
  {
   for(int i=2; i < n; i++)
   { 
    boolean flag = true;
    int prime = 0;
    for(int j=2; j <= i/2 ; j++)
    { if(i % j == 0)
     {
                        flag = false;   
                         break;
                    }
                }        
    if(flag)
    { 
     prime = (2 * i)+1;
     boolean primecheck = isprime(prime);
     if(primecheck)
     {
      System.out.print(i +" ");
     }
    }
   } 
  } 
  else
  {
   System.out.print("Number must be greater then 2");
  }
 }
}

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