This tutorial explains how a Java HashMap works internally and explores the challenges of implementing it, including buckets, collisions and hash codes.

Introduced in Java 5, generics enhance the type safety of your code and make it easier to read. This helps you avoid runtime errors like the ClassCastException, which happens when you try to cast ...

Java’s collections like arrays and lists are foundational building blocks. Functional programming techniques are at times the ideal way to work with these collections. This article gives a tour ...

I'm trying to find the cause of a NotSerializable Exception, but the app only logs redisson stack. I already check and my code doesn't have any sublist, so I was wondering how can I find the origin ...

The Java array size is set permanently when the array is initialized. The size or length count of an array in Java includes both null and non-null characters. Unlike the String and ArrayList, Java ...

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.