Websparrow

16/10/2024

List.of and Arrays.asList are both used to create lists in Java, but they have some differences:

1. List.of()

Introduced in Java 9.
Creates an immutable list.
Does not allow null elements.
Returns a list with a fixed size.

2. Arrays.asList()

Available since Java 1.2.
Creates a mutable list backed by an array.
Allows null elements.
The size of the list is fixed, but the elements can be changed.

Ref: https://websparrow.org/java/arrays-aslist-vs-list-of-in-java

List.of and Arrays.asList are both used to create lists in Java, but they have some differences.

16/10/2023

https://javatonline.com/

Tutorials, Free Online Tutorials, javaTonline provides tutorials and interview questions of all technology like java tutorial, android, java frameworks, javascript, ajax, core java, sql, python, php, c language etc. for beginners and professionals.

16/10/2023

https://websparrow.org/spring/spring-boot-commandlinerunner-interface-example

Spring Boot’s CommandLineRunner interface, allows developers to execute code when the Spring Boot application starts. In this blog, we’ll explore the CommandLineRunner interface, and its purpose, and provide examples of its usage.

11/10/2023

Understanding Git Squash

The “git squash” enables you to merge multiple commits into a single, cleaner commit. This means that instead of having a long and cluttered commit history, you can group related changes together, making it easier to navigate through your project’s history.

Why Squash Commits?

Squashing commits can be particularly beneficial for several reasons:

Full artilce URL: https://websparrow.org/git/git-squash-squashing-commits-for-a-cleaner-history

git squash is a technique for combining multiple commits into a single, more coherent commit using the interactive rebase feature in Git.

11/10/2023

Hibernate Annotation

The annotation is a part of the Java Persistence API (JPA) standard and is used to implement optimistic concurrency control in Hibernate. This mechanism ensures that multiple users can work with the same data simultaneously without causing data inconsistencies or conflicts. It’s particularly useful in applications where concurrent access to data is common.

Why and Where to Use Annotation?

Full article: https://websparrow.org/hibernate/hibernate-version-annotation

Unlocking Optimistic Concurrency Control with Hibernate Annotation. What is the Annotation? What is preferred data type for annotation in Hibernate?

07/09/2023

https://websparrow.org/java/exploring-the-optional-in-java-8

The Optional class in Java 8 provides a more elegant and safer way to handle the absence of a value. It is part of the java.util package.

21/08/2023

Java 8 new Date and Time API

https://websparrow.org/java/overview-of-java-8-date-and-time-api

Explore Java 8's Date and Time API: Advancements, examples & ISO-8601 format. Master handling dates, times, and durations effortlessly.

20/08/2023

https://websparrow.org/java/lambda-expressions-in-java-8

Java 8 brought a game-changing feature to the world of programming: lambda expressions. Lambda expressions are a way to define anonymous (unnamed) functions in Java.

30/07/2023

Java 8 Collectors.groupingBy() Method
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The Collectors.groupingBy() method is part of the java.util.stream package, introduced in Java 8, and facilitates the grouping of elements in a stream based on a provided classification function. The elements of the stream are divided into different groups, where each group is represented by a unique key.

https://websparrow.org/java/java-8-collectors-groupingby-method-example

The Collectors.groupingBy() method is part of the java.util.stream package, introduced in Java 8 and facilitates the grouping of elements in a stream based on a provided classification function.

17/06/2022

Java 11- New Methods of String Class

https://www.websparrow.org/java/java-11-new-methods-of-string-class

20/04/2022

https://www.websparrow.org/java/capitalize-the-first-letter-of-each-word-in-a-string-using-java

how to capitalize the first letter of each word in a String using Java. Java 8 Stream API example to capitalize first letter of a String.

20/04/2022

https://www.websparrow.org/java/java-8-stream-api-allmatch-anymatch-and-nonematch-method-example

Java 8 Stream API allMatch(), anyMatch() and noneMatch() method with an example. Terminal Operations methods of Java 8 Stream API.