UML类图：
工厂接口类：
package com.jthao.design.des.factorymethod;
public interface IFactory {
public LeiFeng createLeifeng();
}
具体工厂类A：
package com.jthao.design.des.factorymethod;
public class VolunteerFactory implements IFactory {
@Override
public Volunteer createLeifeng() {
return new Volunteer();
}
}
具体工厂类B：
package com.jthao.design.des.factorymethod;
public class UndergraduateFactory implements IFactory {
@Override
public Undergraduate createLeifeng() {
return new Undergraduate();
}
}
对象接口类：
package com.jthao.design.des.factorymethod;
public class LeiFeng {
public void sweep() {
System.out.println("扫地");
}
public void wash() {
System.out.println("洗衣");
}
public void buyRice() {
System.out.println("买米");
}
}
具体对象A：
package com.jthao.design.des.factorymethod;
public class Volunteer extends LeiFeng {
public void sweep() {
System.out.println("志愿者扫地");
}
public void wash() {
System.out.println("志愿者洗衣");
}
public void buyRice() {
System.out.println("志愿者买米");
}
}
具体对象B：
package com.jthao.design.des.factorymethod;
public class Undergraduate extends LeiFeng {
public void sweep() {
System.out.println("大学生扫地");
}
public void wash() {
System.out.println("大学生洗衣");
}
public void buyRice() {
System.out.println("大学生买米");
}
}
测试类：
package com.jthao.design.des.factorymethod;
public class factorymethodTest {
public static void main(String[] args) {
IFactory factory = new UndergraduateFactory();
LeiFeng leifeng = factory.createLeifeng();
leifeng.sweep();
IFactory factory2 = new VolunteerFactory();
leifeng = factory2.createLeifeng();
leifeng.buyRice();
leifeng.wash();
}
}