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How To Define An Array of Functions

Java How To: Source Code

public class testf 
{
   public static void main(String args[])
   {
      Command[] commands = new Command[3];                                   
      commands[0] = new aCommand();
      commands[1] = new bCommand();
      commands[2] = new cCommand();
      commands[0].exec();
      commands[1].exec();
      commands[2].exec();
   }
}

class aCommand implements Command 
{
   public void exec() 
   {
      System.out.println("a");
   }
}

class bCommand implements Command 
{
   public void exec() 
   {
      System.out.println("b");
   }
}

class cCommand implements Command 
{
   public void exec() 
   {
      System.out.println("c");
   }
}

interface Command 
{
   void exec();
}

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