Java Program to print prime numbers between 1 and n

//Program to print prime numbers between 1 and n
import java.util.*;
class nprime
     {
   public static void main(String args[])
      {
    int n,i,j;
    int is_prime;
    Scanner obj = new Scanner(System.in);
    System.out.print(" Enter a number : "); 
    n=obj.nextInt();
    System.out.println("  Prime numbers between 1 and "+n+" are :");
    for(j=2;j<=n;j++)
      {   
        is_prime=1;
       for(i=2;i<j;i++)
         {
        if(j%i==0)
           is_prime=0;    
         }
   
    if(is_prime==1)
              System.out.print(" "+j+" ");
   
       }
      }
    }
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