public class RemoteControl{
  Command[] onCommands;
  Command[] offCommands;

  public RemoteControl(){
    onCommands = new Command[2];
    offCommands = new Command[2];

    // By default set NoCommand on each button
    Command noCommand = new NoCommand();
    for(int i=0;i<2;i++){
      onCommands[i] = noCommand;
      offCommands[i] = noCommand;
    }
  }

  public void setCommand(int slot, Command onCommand, Command offCommand){
    onCommands[slot] = onCommand;
    offCommands[slot] = offCommand;
  }

  public void onButtonWasPushed(int slot){
    onCommands[slot].execute();
  }

  public void offButtonWasPushed(int slot){
    offCommands[slot].execute();
  }
}