Collections
-
Core Java
HashMap performance improvements in Java 8
HashMap<K, V> is fast, versatile and ubiquitous data structure in every Java program. First some basics. As you probably know,…
Read More » -
Core Java
Oracle Drops Collection Literals in JDK 8
In a posting on the OpenJDK JEP 186 Oracle’s Brian Goetz informs that Oracle will not be pursuing collection literals…
Read More » -
Core Java
How HashMap works in java
Most common interview questions are “How HashMap works in java”, “How get and put method of HashMap work internally”. Here…
Read More » -
Core Java
Java, Scala, Guava and Trove Collections – How Much Data Can They Hold?
One of the fascinating things about our data structures is that even though we’re so familiar with them, it’s still…
Read More » -
Core Java
On Java Collection Waste
This article is about overhead posed by one of the most popular frameworks used – I bet there is close…
Read More » -
Core Java
ArrayList vs LinkedList
I must confess the title of this post is a little bit catchy. I have recently read this blog post…
Read More » -
Core Java
Would you dare to change HashMap implementation?
There are bold engineers working for the Oracle nowadays. I came to this conclusion when trying to nail down a…
Read More » -
Core Java
Most efficient way to increment a Map value in Java – Only search the key once
This question may be considered too basic, but is frequently asked in the forums. In this post, I will discuss…
Read More » -
Core Java
Arrays.sort versus Arrays.parallelSort
We all have used Arrays.sort to sort objects and primitive arrays. This API used merge sort OR Tim Sort underneath…
Read More »
