We need you! These exercises are built and maintained in collaboration with contributors such as yourself. If you find any bugs or misspellings please contribute and/or report them. You can open these ...

This tutorial is part of a bigger group of tutorials about web development, this repository focuses only on JavaScript Events, you will learn Mouse Events, Keyboard events, Frame Events and how to ...

The most significant addition to the Java language since Sun Microsystems rewrote the collections API for Java 5 is the introduction of Java records. Java records address two significant pain points ...

Reflection was essential to the advanced Java toolkit for years. Now it's being superseded by newer, safer options. Here's how to use MethodHandle and VarHandle to gain programmatic access to methods ...

The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how Java ...

Java's default constructor allows developers to create instances of classes when no other constructors are explicitly defined. The default constructor in Java takes no arguments -- it simply ...

An array is a container object that holds a finite number of values of a specific type. The number of elements the array can store is defined upon creation and cannot be changed afterward. After ...