Java 简单工厂模式

首先 定义一接口

package com.org;

public interface SampleInterface {
	public void print(String s);
}

定义两个接口的实现类

package com.org.impl;

import com.org.SampleInterface;

public class ImpleOne implements SampleInterface {

	@Override
	public void print(String s) {
		// TODO Auto-generated method stub
		System.out.println(s);
	}

}

 

package com.org.impl;

import com.org.SampleInterface;

public class ImpleTwo implements SampleInterface {

	@Override
	public void print(String s) {
		// TODO Auto-generated method stub
		System.out.println(s);
	}

}

定义一工厂类 实现对象的创建

package com.org.factory;

import com.org.SampleInterface;
import com.org.impl.ImpleOne;
import com.org.impl.ImpleTwo;

public class Factory {
	public static SampleInterface getImple(String str){
		if("one".equals(str)){
			return new ImpleOne();
		}
		else{
			return new ImpleTwo();
		}
	}
}

测试类

package com.org.test;

import com.org.SampleInterface;
import com.org.factory.Factory;

public class Test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		SampleInterface face = Factory.getImple("one");
		face.print("Hello World");
		face = Factory.getImple("two");
		face.print("wa wa");
	}

}