Lineup of anthropomorphic nuts, illustrating polymorphism.

Java tip: Inheritance relationships in JPA and Hibernate

Steven Haines , 04/25/19

News & Features

Green glowing exit sign again wall

3 JavaScript libraries to replace jQuery

Cash, Zepto, and Syncfusion are three JavaScript libraries picking up where jQuery left off

Paul Krill

java coffee lover

JDK 13: The new features coming to Java 13

Due in late 2019, Java 13 is tentatively slated to gain raw string literals and a tool for packaging self-contained Java apps

Paul Krill

coffee cup - coffee beans - Java

Google: Use Kotlin for new Android apps

At the Google I/O conference, Google announced that Android development will become increasingly ‘Kotlin-first’

Paul Krill

Hockey player figurines pushing along a binary track.

What are servlets? Request handling for Java web applications

Learn how the Java Servlet API provides URL mapping and request handling for your Java web applications

Matthew Tyson

Matryoshka /Russian nesting dolls > inheritance / sequencing / hidden layers

Java tip: When to use composition vs inheritance

Inheritance is a valuable programming technique, but in some conditions it breaks encapsulation. Find out why composition is the vital alternative to inheritance, and learn when and how to use it in your Java programs.

Jeff Friesen

Java / binary code / gears / programming / coding / development

Java tutorial: Classes and objects in Java

Learn how to make classes, fields, methods, constructors, and objects work together in your Java applications.

Jeff Friesen

Matryoshka /Russian nesting doll > inheritance / sequencing / hidden layers

Java tutorial: Inheritance and the extends keyword in Java

Use Java's extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, override methods, and more

Jeff Friesen

JavaWorld > Persistence [series] > data blocks / structure / database / data center

ORM with JPA and Hibernate, Part 2: Many-to-many relationships

Three example apps teach you how to model many-to-many relationships in JPA and Hibernate

Steven Haines

speech bubble

Loop, switch, or take a break? Deciding and iterating with Java statements

Learn how to use standby statements like for, while, if-else, and break, then get started with the new switch expressions in Java 12

Jeff Friesen

modular humanoid polyhedra / connections / structure / building / network

What is JSF? Introducing JavaServer Faces

JavaServer Faces is the Java standard technology for building component-based web interfaces. Get started with JSF, including what's new in JSF 2.3

Matthew Tyson

question marks

Java operator types and expressions in Java 12

Everything you need to know about the Java operator types and using them to write and evaluate Java expressions in Java 12

Jeff Friesen

Exploding binary numbers

Machine learning algorithms explained

Machine learning uses algorithms to turn a data set into a predictive model. Which algorithm works best depends on the problem

Martin Heller

Load More
Classic Java Tutorials
Resources
More Resources »
Java Help Center

Having a Java issue? Find a solution:

Search
TOP BLOGS & COLUMNS
All JavaWorld Blogs »