Abderrahim Azhrioun | Baeldung

Here's what I've written (so far):

Baeldung on Java

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Java (8)
Java String (4)
Spring Boot (3)
Spring Web (2)
Spring MVC (2)
Spring Data (2)
Programming (2)
Jackson (2)
Spring Persistence (1)
Spring (1)
REST (1)
Persistence (1)
JSON (1)
HTTP Client-Side (1)

Getting Yesterday’s Date in Java

Filed under Java

Learn how to easily get yesterday’s date in Java.

How to Get Last Day of a Month in Java

Filed under Programming

Discover how to find the last day of a month in Java using both core Java methods and popular libraries. This article provides step-by-step explanations for accomplishing the task using Date and Calendar classes, Java 8’s Date Time API, and the Joda Time library with code examples and test cases.

Adding One Month to Current Date in Java

Filed under Java

In this short tutorial, we discuss various methods of adding one month to the current date in Java. We cover using core Java methods as well as popular external libraries such as Joda-Time and Apache Commons Lang3.

Difference Between findBy and findOneBy in Spring Data JPA

Filed under Spring Data

This article delves into the similarities and differences between the findBy and findOneBy prefixes in Spring Data JPA. It explores the concept of derived query methods, provides code examples, and explains the exception thrown by findBy queries when the result size doesn’t match expectations.

Handle NoSuchElementException When Reading a File Through Scanner

Filed under Programming

In this tutorial, we’ll explore handling the ‘NoSuchElementException: No line found’ exception when reading a file using the Scanner class in Java. We’ll explain its root cause and present three solutions: defensive programming, exception handling, and checking file emptiness.

What’s the Difference between Scanner next() and nextLine() Methods?

Filed under Java

This article delves into the difference between the next() and nextLine() methods of the Scanner class.The article also covers the use of custom delimiters and provides code examples for better understanding. Understanding these distinctions enables developers to parse input effectively using Scanner.

Java PrintStream to String

Filed under Java String

This article provides several ways of converting a PrintStream to a String in Java.The approaches include using ByteArrayOutputStream, a custom output stream, and Apache Commons IO.

Spring Boot H2 JdbcSQLSyntaxErrorException expected “identifier”

Filed under Persistence, Spring Boot

This tutorial explains the exception org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement expected “identifier”. It provides a practical example to reproduce the exception and showcases how to fix it by double-quoting the keyword or using a JDBC URL workaround. It also covers how to automatically quote all database identifiers when using Hibernate.

Fix the JsonMappingException: Can not deserialize instance of java.util.ArrayList from Object value (token `JsonToken.START_OBJECT`)

Filed under Jackson

Learn how to fix a common JsonMappingException when deserializing a JSON string.