设计模式-工厂模式

1.定义

2.UML

3.代码

public abstract class Product {
abstract void method();
}

public class Product1 extends Product {
@Override
void method() {
System.out.println("产品1");
}
}

public class Product2 extends Product {
@Override
void method() {
System.out.println("产品2");
}
}

public interface Factory {
<T extends Product> T createProduct(Class<T> c);
}

public class ConcreteFactory implements Factory {
@Override
public <T extends Product> T createProduct(Class<T> c) {
Product product = null;
try {
product = c.newInstance();
} catch (Exception e) {
e.printStackTrace();
}
return (T) product;
}
}

public class FactoryClient {

public static void main(String[] args) {
Factory factory = new ConcreteFactory();
Product product1 = factory.createProduct(Product1.class);
product1.method();
Product product2 = factory.createProduct(Product2.class);
product2.method();
}
}