对计算机专业的学生而言，哈希算法在大学数据结构课程中曾有所接触，但随着时间推移，多数人逐渐淡忘了相关内容。工作后由于实际应用较少，也未能深入研究。直到某天在项目开发中，发现有人同时重写了hashCode和equals方法，才引发思考：hashCode到底是什么？

Download the source code for example applications in this tutorial. Created by Jeff Friesen. We’ll look at each of these methods and how you can use them to perform special tasks in the context of ...

If you are fortunate enough to be using JDK 7, the newly available Objects class is the obvious (at least to me) choice for implementing the “common” Java object ...