public class AddNumbers implements Chain{

	private  Chain nextInChain;

	// Defines the next Object to receive the
	// data if this one can't use it

	public void setNextChain(Chain nextChain) {

		nextInChain = nextChain;

	}

	// Tries to calculate the data, or passes it
	// to the Object defined in method setNextChain()

	public void calculate(Numbers request) {

		if(request.getCalcWanted() == "add"){

			System.out.print(request.getNumber1() + " + " + request.getNumber2() + " = "+
					(request.getNumber1()+request.getNumber2()));

		} else {

			nextInChain.calculate(request);

		}

	}
}