Java 反射实例化对象（修改工厂模式）

interface Phone {
public abstract void buy();
}

class Apple implements Phone {

@Override
public void buy() {
System.out.println("买iPhone手机.....");
}

}

class Android implements Phone {
@Override
public void buy() {
System.out.println("买安卓手机.....");

}
}

class Factory {
public static Phone getInstance(String className) {
Phone f = null;
try {
f = (Phone) Class.forName(className).newInstance();
} catch (Exception e) {
e.printStackTrace();
}
return f;
}
}

public class Demo {
public static void main(String[] args) {
Phone fruit = Factory.getInstance("ikvDemo.Apple");
fruit.buy();
}
}