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4 Key differences between a HashMap and a Hashtable in Java

4 Key differences between a HashMap and a Hashtable in Java

Updated on September 17, 2023 by Đạt Trần

Overview Hashtable and HashMap are common data structures to store key-value data in your Java application. While hav...

Java Exception Handling Cheat Sheet

Java Exception Handling Cheat Sheet

Updated on September 17, 2023 by Đạt Trần

Overview While preparing for the OCP 17 exam, I created some notes to aid my learning. This is the first of many post...

Java equals and hashCode Tutorial

Java equals and hashCode Tutorial

Updated on October 2, 2022 by Đạt Trần

Overview This tutorial shows you what equals and hashCode are and how to properly override them. If you have written ...

Java Serialization fundamentals

Java Serialization fundamentals

Updated on August 9, 2022 by Đạt Trần

In this post, I will introduce the fundamentals of serialization in Java that you need to know. The Serializable inte...

Guide to Variable Initialization in Java

Updated on July 19, 2022 by Đạt Trần

What is variable initialization in java? What do Java developers need to know about this topic? Find out here!

PriorityQueues and their usages

Updated on June 28, 2022 by Đạt Trần

Overview A priority queue is an interesting data structure in Java. The key term here is “priority”. That...

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