HappyCoders Developer Blog: Java + Software Architecture

Advent of Code 2022 – Object-oriented Solutions in Java

Sven WoltmannDecember 1, 2022

Here you can find all solutions to Advent of Code 2022. All tasks are implemented in an object-oriented and test-driven way in Java.

Java 19 Features
(with Examples)

Sven WoltmannSeptember 20, 2022

The new Java 19 features with examples: Virtual Threads (Preview), Record Patterns (Preview), Foreign Function & Memory API (Preview) + more.

Radix Sort – Algorithm, Source Code, Time Complexity

Sven WoltmannJuly 19, 2022

How does Radix Sort work? How to implement Radix Sort in Java? What is the time and space complexity of Radix Sort?

Virtual Threads in Java – Deep Dive with Examples

Sven WoltmannJune 14, 2022

Virtual threads in Java (Project Loom): What are virtual threads? Why do we need them? How do they work? How to use them?

Stack vs. Queue

Sven WoltmannJune 8, 2022

What are the differences between the stack and queue data structures? How do the corresponding Java interfaces and classes differ?

Java Queue vs. Deque

Sven WoltmannJune 7, 2022

What are the differences between the data structures deque and queue? And how do the corresponding Java interfaces differ?

Java Deque vs. Stack

Sven WoltmannJune 7, 2022

What are the differences between the data structures and Java classes Deque and Stack? Why should we use only Deque in Java?

Implement a Deque Using an Array

Sven WoltmannJune 7, 2022

How to implement a deque based on an array in Java (without Java collections classes)? How does the array grow on demand?

Deque Implementations in Java – Which One to Use?

Sven WoltmannJune 7, 2022

Which Deque implementations exist in the JDK? How do they differ? In which cases should you use which implementation?

Java LinkedBlockingDeque
(+ Code Examples)

Sven WoltmannJune 7, 2022

How to use the Java LinkedBlockingDeque? How does it work? What are its characteristics? When should you use it?

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