Java 简单工厂模式详解编程语言

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"); 
	} 
 
}