1、 实现返回空集合的技巧方法代码如下所示 2、 实现字符串对象初始化的技巧与代码方法 3、 Java创建对象时的初始化技巧代码示例 4、 掌握数组与ArrayList集合的运用技巧，编写高效实用的方法代码。

Community driven content discussing all aspects of software development from DevOps to design patterns. Here are the most important concepts developers must know when they size Java arrays and deal ...

We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...