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🐳何为多态？多态，通俗一点说就是在完成某一个行为的时候，不同的对象会产生不同的形态。比如说：打印机在完成打印行为的时候，可以根据不同的对象打印不同的类型，有黑白，有彩色等等，打印的结果是不一样的。总的来说：同一件事情，发生在不同对象身上&#x...

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🐳 子类构造方法：子类对象构造时，需要先调用基类构造方法，然后执行子类的构造方法。1. //Car.java 2. public class Car { 3. int a; 4. int b; 5. String name; 6. 7. public Car(){ 8. System.out.pr...

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面向对象思想中提出了继承的概念，专门用来进行共性抽取，实现代码复用。🐳何为继承？继承(inheritance)机制：是面向对象程序设计使代码可以复用的最重要的手段，它允许程序员在保持原有类特性的基础上进行扩展，增加新功能，这样产生新的类，称派生类。继承呈现了面向对象程...

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