工厂模式--工厂方法

学习设计模式的几点说明：1）应用场景；2）UML类图；3）代码。

 

工厂模式中工厂方法代码。

package test6.factoryMethod;

import org.junit.Test;
import org.python.modules.newmodule;
import org.python.parser.ast.argumentsType;


abstract class Car {
	public abstract void printName();
}

class BenzCar extends Car {

	@Override
	public void printName() {
		System.out.println("Benz Car...");
		
	}
	
}

class BMWCar extends Car {

	@Override
	public void printName() {
		System.out.println("BMW Car...");
		
	}
	
}

abstract class CarFactory {
	public abstract Car createCar();
}

class BenzCarFactory extends CarFactory {

	@Override
	public Car createCar() {
		return new BenzCar();
	}
	
}

class BMWCarFactory extends CarFactory {

	@Override
	public Car createCar() {
		return new BMWCar();
	}
	
}

public class Application {
	@Test
	public void test() {
		Car car;
		CarFactory cf = new BMWCarFactory();
		car = cf.createCar();
		car.printName();
		
		cf = new BenzCarFactory();
		car = cf.createCar();
		car.printName();
	}
	
}