how to Implement code from other java class files

Okay so I'm trying to make a 21 game for computer science class here is the code:

 package javaapplication5;
 import java.lang.String;
 import java.util.ArrayList;
 import java.util.Random;
 import java.util.Scanner;

 /**
  *
  * @author Marcell
  */
 public class JavaApplication5 {



private static final String title = "The Card Game 21";

private static final int STAND_PAT_POINT = 17;

private static Shoe shoe = new Shoe();

public static void main ( String [] args )
{
int rc = 0;  
  do
  {  playGame();
     rc = JOptionPane.showConfirmDialog( null, "Play Again?",
        title, JOptionPane.YES_NO_OPTION );
  } while ( rc == JOptionPane.YES_OPTION );
 }

  private static void playGame ()
 {
  int rc = 0; 

  Hand dealersHand = new Hand( shoe ),
       playersHand = new Hand( shoe );

  StringBuilder initMsg = new StringBuilder( "Dealer shows : " );
  initMsg.append( dealersHand.firstCard() );
  initMsg.append( "\n\nPlayer's Hand: " );

  while ( playersHand.value() < 21 )
  {
     StringBuilder msg = new StringBuilder( initMsg );
     msg.append( playersHand.toString() );
     msg.append( "\n\nDo you want another card?" );

     rc = JOptionPane.showConfirmDialog( null, msg, title,
        JOptionPane.YES_NO_CANCEL_OPTION );

     if ( rc != JOptionPane.YES_OPTION )
        break;
     playersHand.hit();
  }

  if ( rc == JOptionPane.CANCEL_OPTION )
     return;


  String msg = null;

  if ( playersHand.value() > 21 )
  {
     msg = "Sorry, you lost!\n\n";
  } else
  {
     while ( dealersHand.value() < STAND_PAT_POINT )
        dealersHand.hit();

     if ( dealersHand.value() > 21 ||
          playersHand.value() > dealersHand.value() )
        msg = "Congratulations, you won!\n\n";
     else
        msg = "Sorry, you lost!\n\n";
  }

  msg += "Dealers Hand: " + dealersHand.toString() + "\n\n" +
         "Players Hand: " + playersHand.toString();

  JOptionPane.showMessageDialog( null, msg, title,
     JOptionPane.PLAIN_MESSAGE );
 }
}


  class Shoe
 {
 private static final int NUM_DECKS = 4;
 private static final int RESHUFFLE_POINT = (int) (0.05 * (NUM_DECKS * 52));

  private ArrayList<Card> deck;

  public Shoe ()
  {   shuffleCards();
  }

  public ArrayList<Card> drawCards ( int numCardsToDeal )
  {
  ArrayList<Card> cards = new ArrayList<Card>( numCardsToDeal );

  for ( int i = 0; i < numCardsToDeal; ++i )
  {
     if ( deck.size() <= RESHUFFLE_POINT )
        shuffleCards();
     cards.add( deck.remove(0) );
  }
  return cards;
 }

   private void shuffleCards ()
  {
  deck = new ArrayList<Card>( NUM_DECKS * 52 );

  for ( int numDecks = 0; numDecks < NUM_DECKS; ++numDecks )
     for ( int suit = 1; suit <= 4; ++suit )
        for ( int rank = 1; rank <= 13; ++rank )
           deck.add( new Card( suit, rank ) );

  Collections.shuffle( deck );
 }
 }
  class Hand
 {
  private ArrayList<Card> cards = new ArrayList<Card>();
  private Shoe shoe;

  public Hand ( Shoe shoe )
  {
   this.shoe = shoe;

  // Deal two cards to initialize the hand:
  cards.addAll( shoe.drawCards( 2 ) );
 }
   public int value ()
  {
  int total = 0;
  boolean hasAce = false;
  for ( Card card : cards )
  {
     int val = card.value();
     if  ( val == 1 )  hasAce = true;
     total += val;
  }

  while ( total < (21 - 10) && hasAce )
     total += 10;
  return total;
  }


   public void hit () {  cards.addAll( shoe.drawCards(1) ); }

   public Card firstCard() { return cards.get( 0 );  }

  public String toString ()
 {
  StringBuilder sb = new StringBuilder();
  for ( Card card : cards )
  {
     sb.append( card );
     sb.append( "   " );
  }
  return sb.toString();
  }
 }

 class Card
 {
  final int suit;  
  final int rank;

  Card ( int suit, int rank )
  {
  if ( suit < 1 || suit > 4 )
     throw new IllegalArgumentException(
        "suit must be between 1 (clubs) and 4 (spades)." );

  if ( rank < 1 || rank > 13 )
     throw new IllegalArgumentException(
        "rank must be between 1 (ace) and 13 (king)" );

  this.suit = suit;
  this.rank = rank;
  }


 public int value ()
 {
  int val = rank;
  if ( rank > 10 )
     val = 10;
  return val;
  }


  public String toString()
  {
  StringBuilder sb = new StringBuilder( 2 );
  switch ( rank )
  {
     case  1: sb.append( 'A' );  break;
     case 11: sb.append( 'J' );  break;
     case 12: sb.append( 'Q' );  break;
     case 13: sb.append( 'K' );  break;
     default: sb.append( rank ); break;
  }

  switch ( suit )
  {
     case 1: sb.append( '\u2663' );  break;  // Club
     case 2: sb.append( '\u2666' );  break;  // Diamond
     case 3: sb.append( '\u2665' );  break;  // Heart
     case 4: sb.append( '\u2660' );  break;  // Spade
    }
     return sb.toString();
   }
  }

Okay This code works and everything but I need to separate all the classes (for example: class card) into their own java class file and make them work from there. I was wondering how I would do that?