Java简单工厂模式

package pattern.factory;

public interface HuMan {
	public void eat();
	public void walk();

}

 

package pattern.factory;

public class Chinese implements HuMan {

	public void eat() {
		System.out.println("中国人喜欢吃大米！");
	}

	public void walk() {
		System.out.println("中国人喜欢骑自行车！");
	}

}

 

package pattern.factory;

public class Usa implements HuMan {

	public void eat() {
		System.out.println("美国人喜欢吃面包！");
	}

	public void walk() {
		System.out.println("美国人喜欢开汽车！");
	}

}

 

package pattern.factory;

public class Factory {

	private HuMan huMan = null;

	public Factory(HuMan huMan) {
		this.huMan = huMan;
	}

	public HuMan getInstance() {
		return huMan;
	}

}

 

package pattern.factory;

public class TestFactory {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		HuMan usa=new Factory(new Usa()).getInstance();
		usa.eat();
		usa.walk();
	}

}