工厂方法模式

/**
 * @author damei
 * @Time 2020/1/19 12:49
 * @Description: 抽象工厂  createFactory 方法
 */
public abstract class ComputerFactory {
    public abstract <T extends Computer>T createrFactory(Class<T> tClass);
}

/**
 * @author damei
 * @Time 2020/1/19 12:51
 * @Description: concrete 工厂 无需修改工厂类直接创建产品即可
 */
public class ConcreteComputerFactory extends ComputerFactory{
    @Override
    public <T extends Computer> T createrFactory(Class<T> tClass) {
        Computer computer = null;
        String name = tClass.getName();

        try {
            computer = (Computer) Class.forName(name).newInstance();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        return (T) computer;
    }
}

//具体创建 
DellComputer dellComputer = concreteComputerFactory.createrFactory(DellComputer.class);