Java Program to find a given number is Composite (or) not.

//Program to find a given number is Composite (or) not.
import java.util.*;
class composite
    {
public static void main(String args[])
      {
    int a,i,count=0;
    System.out.println(" Enter a number:");
    Scanner obj=new Scanner(System.in);
    a=obj.nextInt();
    for(i=1;i<=a;i++)
        {
        if(a%i==0)
          count++;
         }
    if(count>2)
        System.out.println(a+" is a composite number ");
    else
        System.out.println(a+" is a not a composite number ");
     }
}