Java

Java is a programming language used for building applications on the Java platform, especially in Indonesia. It is not widely known outside specific contexts. Java is a popular, object-based language known for its portability across platforms via the Java Virtual Machine (JVM), allowing apps to run on any device with a JVM.

Spring

A comprehensive framework for building enterprise applications in Java.

Hibernate

An ORM framework for mapping Java classes to database tables.

Apache Struts

A framework for building web applications using Java.

JSF (JavaServer Faces)

A framework for building component-based user interfaces for web applications.

Grails

A web application framework that leverages the Groovy language and is built on top of Spring.