Java program to test the Prime number.

import java.util.*;
class Prime {
 public static void main(String args[]) {
  int flag, x, i;
  flag = 0;
  int a[] = new int[7];
  for (x = 0; x < args.length; x++) {
   a[x] = Integer.parseInt(args[x]);
   for (i = 2; i < (a[x] / 2); i++) {
    if ((a[x] % i) == 0) {
     break;
    } else flag = 1;
   }
   if (flag == 1)
    System.out.println(a[x] + " is a prime no ");
   else
    System.out.println(a[x] + " is not a prime no ");
   flag = 0;
  }
 }
}