PatternMatching

import javax.swing.*;
/**
 * Write a description of class PatternMatching here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class PatternMatching
{
    public static void main (String[] args )
    {
        String s  = JOptionPane.showInputDialog("Shkruani fjalen fillestare : ");
        String p  = JOptionPane.showInputDialog("Shkruani mostren qe do te kerkohet");
        int gjatesiaP = p.length();
        int index = -1;

        if ( gjatesiaP > s.length() )
        {
            JOptionPane.showMessageDialog(null,"Gjatesia e mostres eshte me e madhe se fjala fillestare");
            //  System.exit(0); // fuck it, exit :P
        }
        else
        {
            for ( int i = 0 ;  i< s.length() - gjatesiaP +1 ; i++)
            {
                String sub =  s.substring(i,i+gjatesiaP);
                System.out.println(s);
                String hapesira = "";
                for ( int j=0 ; j<i ; j++)
                {
                    hapesira += " ";
                }
                System.out.println(hapesira + sub);
                if ( p.equals(sub) )
                {
                    index = i;
                    break; // sepse u gjet
                }
            }

        }
       JOptionPane.showMessageDialog(null,"Pozita : " + (index));
    }
}