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");
}

}