// 产品接口 public interface Product {
public void getName(); }
// 具体产品A public class ProductA
implements Product {
public void getName() { System.out.println(
" I am ProductA "); } }
// 具体产品B public class ProductB
implements Product {
public void getName() { System.out.println(
" I am ProductB "); } }
// 工厂类 public class ProductCreator {
public Product createProduct(String type) {
if (
" A ".equals(type)) {
return new ProductA(); }
if (
" B ".equals(type)) {
return new ProductB(); }
else return null; } //客户端
public static void main(String[] args) { ProductCreator creator =
new ProductCreator(); creator.createProduct(
" A ").getName(); creator.createProduct(
" B ").getName(); } } //不需要修改的工厂模式///通过反射机制实现public class Factory { public static IFruit getInstance(String className){ IFruit fruit = null; try { fruit =(IFruit) Class.forName(className).newInstance(); } catch (Exception e) { e.printStackTrace(); } return fruit; }//测试仪IFruit f = Factory.getInstance("com.hf.tes.AppleImple"); if(f!=null){ f.eat(); }}
