训练15 汽车厂、鞋厂都是工厂

        创建抽象的工厂类,工厂类有一个抽象的生产方法。让汽车厂和鞋厂都继承工厂类,汽车厂生产汽车,鞋厂生产鞋。


public class AutoPlant extends Factory {
	String productsName;
	
	public AutoPlant(String productsName) {
		this.productsName = productsName;
	}

	@Override
	public String produce() {
		return this.productsName;
	}
}



public abstract class Factory {
	String name;
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public abstract String produce();
}



public class ShoeFactory extends Factory {
	String productsName;
	
	public ShoeFactory(String productsName) {
		this.productsName = productsName;
	}
	
	@Override
	public String produce() {
		return this.productsName;
	}
}



public class Test {
	public static void main(String[] args) {
		AutoPlant autoPlant = new AutoPlant("汽车");
		autoPlant.setName("汽车厂");
		System.out.println(autoPlant.getName() + "生产的是" + autoPlant.productsName);
		ShoeFactory shoeFactory = new ShoeFactory("鞋");
		shoeFactory.setName("鞋厂");
		System.out.println(shoeFactory.getName() + "生产的是" + shoeFactory.productsName);
	}
}

         训练16 五颜六色的接口

        创建一个五颜六色的接口Colorful,接口中有一个表示点亮的抽象方法shine()。编写一段代码,实现红灯发红光,黄灯发黄光,绿灯发绿光。


interface Colorful {
	void shine();
}

class RedLights implements Colorful {
	@Override
	public void shine() {
		System.out.println("红灯亮红光");
	}
}

class YellowLights implements Colorful {
	@Override
	public void shine() {
		System.out.println("黄灯亮黄光");
	}
}

class GreenLights implements Colorful {
	@Override
	public void shine() {
		System.out.println("绿灯亮绿光");
	}
}

 

11-05 08:22