Initializing a Map using Eclipse Collections is simple and flexible. I answered the following question on Stack Overflow almost a decade ago. How can I initialise a static Map? I like the Guava way of initialising a static, immutable map: static final Map MY_MAP = ImmutableMap.of( 1, "one", 2…stackoverflow.com If you create a MutableMap in Eclipse Collections using empty and withKeyValue, you can then chain as many key / value combinations as you need. As a final…

A simple Java program using Eclipse Collections Outputs:

After 5 years of blogging, it’s time for me to read more and write less. I made a commitment to writing Five years ago, I committed to writing at least one blog per month. With the exception of March, 2022, I stuck to my commitment. This commitment has been a challenge, but not a burden. I…

See something. Say something. Prove something. Do something. Starting with an Idea In May 2013, I was in traveling on business in London. The GS Collections library had been released to open source on GitHub a year and a half earlier (January 2012). …

The future of the library no longer requires my continual presence. All grown up I’ve spent 18 years growing a Java collections library named Eclipse Collections. I love this library. It is a great library, and has an amazing community of developers contributing to and supporting it. I will use this library for…

We passed 2,000 stars on GitHub! Thank you to all of our supporters! Eclipse Collections 11.1 is here!

A story of CI build monitoring and creativity at play. Background Ten years ago, I had an idea. I wanted to use a Lego Mindstorms NXT 2.0 kit to build a robot that could continuously monitor our software development builds. The following is the story of what happened and how things…

A story of 40 years of coding and still feeling like a kid in a toy store. My programming story begins I love coding. I started coding in BASIC when I was 11 years old. I am from a fortunate generation, which was the first to have access to personal computers in their homes…

Learn the forEach and injectInto patterns in Eclipse Collections. — To forEach or to injectInto? In Eclipse Collections, forEach and injectInto are both internal iterators that provide the most basic of the iteration patterns. A developer can use both of these patterns to accomplish a large number of iteration tasks. …