本文介绍了一下OpenJDK的最新技术，对象头压缩，来大幅优化Java对象的内存占用。 前言 Java丰富的生态和语言强大的内存管理技术（GC），使得Java应用的开发非常便捷，各类应用场景的适配都非常优秀，大大减少了从Idea到应用落地的难度。不过这一切也不是没有 ...

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields, ...

The first half of this introduction to Java inheritance teaches you how to use the extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, and ...