Display primes between 2 intervals

/* Java program to display all prime numbers between Two interval entered by user. */
package Prime3;
import java.util.Scanner;
public class Prime11
{
    public static void main(String[] args)
    {
        int n1, n2, i, j, flag=0;
        System.out.println("Enter two numbers(intevals): ");
        Scanner myobject = new Scanner(System.in);
        n1=myobject.nextInt();
        n2=myobject.nextInt();
        System.out.println("Prime numbers between "+n1);
        System.out.println("and "+n2);
        System.out.println("are : ");

        for(i=n1+1; i<n2; ++i)
        {
            flag=0;
            for(j=2; j<=i/2; ++j)
            {
                if(i%j==0)
                {
                    flag=1;
                    break;
                }
            }
            if(flag==0)
            {
                System.out.println(" "+i);
            }
        }
    }
}