工廠模式簡單實現

Factory Method 工廠方法模式——定義一個用於創建對象的接口，讓子類決定將哪一個類實例化。Factory Method使一個類的實例化延遲到其子類。

代碼實現:

package factory;

public class Fruit {
	private String name;
	private String color;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getColor() {
		return color;
	}
	public void setColor(String color) {
		this.color = color;
	}
	public Fruit(String name, String color) {
		super();
		this.name = name;
		this.color = color;
	}
	public Fruit() {
		super();
	}
	public void plant(){
		System.out.println("種下一顆"+this.name+"樹");
	}
	public void grow(){
		System.out.println(this.name+"樹正在成長");
	}
	public void growUp(){
		System.out.println("長出了"+this.color+"的"+this.name);
	}
}

package factory;

public interface FruitFactory {
	public Fruit getFruit();
}

package factory;

public class AppleFactory implements FruitFactory{

	@Override
	public Fruit getFruit() {
		// TODO Auto-generated method stub
		return new Fruit("蘋果","紅色");
	}

}

package factory;

public class Test {
	public static void main(String[] args) {
		//獲得工廠
		FruitFactory ff=new AppleFactory();
		//獲得水果
		Fruit f=ff.getFruit();
		f.plant();
		f.grow();
		f.growUp();
	}
}