Create multiple objects in Java

Use of Interface in java.

Let's assume we have a Game Class and four subtypes of Game: Hockey, Cricket,Tennis,Football

public static List<Game> getInstances(Class<? extends Game> clazz, int counter)

{

    List games = new ArrayList<Game>();

    for(int i=0;i< counter; i++)

    {

        games.add(clazz.newInstance());

    }

    return games;

}

Now you can use this for creating games.

List<Hockey> hctf = Game.getInstances(Hockey.class,10);

List<Cricket> hctf = Game.getInstances(Cricket.class,10)

List<Tennis> hctf = Game.getInstances(Tennis.class,10)

List<Football> hctf = Game.getInstances(Football.class,10)