Number into primes

import java.io.*;
/**
 *
 * @author subhani.s
 */
public class primeex {

    public static void main(String args[])
    {
        new primeex();
    }
   
    int j;
    public void myPrime(int k)
    {
     for (j=2; j
       {
            int l = k%j;
            if(l==0)
            {
                if(j==k)
                {
                    System.out.println("prime");

                }
                else
                    k--;
            }
        }
        if(j==k)
        {
             System.out.println("prime number");
        }
    }
    public primeex()
    {
        try
        {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            String str = br.readLine();
            Integer x = Integer.valueOf(str);
            myPrime(x);
            int q;
            q=x-j;
            System.out.println("num: "+ q +"+"+ j);
        }
        catch(Exception e)
        {

        }
    }
}