DEV Community: CuratedJava

Java Newsletter Insights – Issue 18

CuratedJava — Wed, 14 Sep 2022 02:01:45 +0000

Originally posted at CuratedJava

🔥 Top Java Post
Java is Very Fast, If You Don’t Create Many Objects
You still have to pay attention to how many objects you create. Learn more >>

🤖 Java Interview Questions
Q. What are some libraries to parse, generate, transform and query JSON data?

A. There are multiple libraries to parse, generate, transform and query JSON data in Java. Two very popular libraries are Jackson and GSON. Both offer a very broad range of features, including methods to parse a JSON string to a Java POJO and vice versa.

Java Newsletter Insights — Issue 15

CuratedJava — Fri, 19 Aug 2022 01:28:00 +0000

Originally posted at https://curatedjava.com

🔥** Top Java Post**
Loom in a Nutshell
A straight to the point explanation about Loom, a project that aims to bring Virtual Threads and structured concurrency to the Java Platform. Learn more >>

🤖 Java Interview Question
Which Java class is designed to represent a universal unique identifier?
The UUID class, available in the java.util package, can represent a universally unique identifier (UUID). An UUID object represents a 128-bit value and is immutable.

❓ StackOverflow Java Question
How do I efficiently iterate over each entry in a Java Map?

🖱️ Just Click It

1. JEP 429: Extent-Local Variables (Incubator)

2. Java Money API

3. Eclipe Java IDE 2022–06 Improvements

4. Turn any Java program into a self-contained EXE

5. Efficient Memory Mapping for Terabyte Sparse Files in Java
6. Book review: Head First Java, third edition

7. VS Code: Getting Better and Better for Java

⚙️ New Releases

- IntelliJ IDEA 2022.02

Previous Editions

Java Insights - Issue 13

CuratedJava — Fri, 03 Jun 2022 02:52:49 +0000

Originally posted at https://curatedjava.com

🔥 Top Java Posts

1. Java Collections: Big-O Algorithm Complexity
A cheat sheet for Java Collections Big-O algorithm complexity listing the cost for the main operations. As a bonus, it also lists the data structure used to implement each Java Collection. Learn more >>

2. The Future of Java
Java enthusiasts share their opinions on what makes Java so great after 25 years Some highlights are the libraries, stability and the JVM. Learn more >>

🖱️ Just Click It

🤖 Java Interview Questions
1. What is the process of garbage collection?
It is the process of identifying unused objects in order to reclaim memory space. Unused objects are objects for which there are no references by any part of the program. The garbage collection process takes place in the heap.

2. What is the recommended data type to represent and process currency/money operations?
BigDecimal, because it offers a higher level of precision compared with Double. When compared with Float, Double offers a higher level of precision.

❓StackOverflow Java Question

⚙️ New Releases

Spring Boot 2.7.0

Previous Editions