Java SE JDBC Select Statement Example
In this Tutorial, we will take a look at how to execute a select statement with Java SE JDBC + MySQL for Example.
Java JDBC Connection with MySQL Driver in VS Code + Troubleshooting
In this Tutorial, we will take a look at Java JDBC Connection with MySQL Driver Example in VS Code and how to troubleshoot exceptions.
VS Code: The source path must be contained in the project root folder.
How to fix: VS Code Java Error: The source path must be contained in the project root folder.
3 Ways to Change Default 8080 Port in Spring Boot
How to change the default 8080 port in Spring Boot with 3 examples.
[fix] NullPointerException Cannot Invoke findById because Repository is null - Java Spring
How to Fix Java Spring Error - NullPointerException Cannot Invoke findById because Repository is null.
[fix] Spring Boot Data JPA - No identifier specified for entity
How to fix org.hibernate.AnnotationException: No identifier specified for entity exception
Java: Convert Double to 2 Decimal Places [Examples]
How to convert or display Double to 2 Decimal Places in Java with examples.
Convert Multidimensional Array toString In Java
How to Convert Multidimensional Array toString In Java?
[Solution] POI: Cannot get a NUMERIC value from a STRING cell
How to fix POI exception: Cannot get a NUMERIC value from a STRING cell
Java Stream flatmap() Examples
In this article, we will look at how to use Java FlatMap Example With Streams.
Reading .xls and .xlsx Excel file using Apache POI Java Library
How to read .xls and .xlsx Excel files using Apache POI Java Library.
Spring Boot Web + Thymeleaf Hello World Example in IntelliJ in 5 Easy Steps
In this Tutorial, we will take a look at Spring Boot Web + Thymeleaf Hello World Example in IntelliJ in 5 Easy Steps
[fix] URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs) IntelliJ
How to fix URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs) in IntelliJ
Java: Collect Stream as ArrayList or LinkedList
To convert a stream as ArrayList or LinkedList make use of the Collectors toCollection method.
Java Program to generate random string
In this example, we will take a look at how to generate a random string using Java.
Generate Maven Project Dependency Tree using MVN Command
How to generate Maven Dependency Tree using MVN Command?
Java: Round Up to 2 decimal places examples
In this tutorial, we will take a look at how to round up a decimal or a float value up to 2 decimal places.
Java: Generate random numbers within a range
In this example, we will generate random numbers within a range defining a boundary condition.
[fix] JSON Expected BEGIN_OBJECT but was STRING at line 1 column 1
How to fix: Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
