IBM Developer

Java

Tutorials

Tutorial

Create your first AI Java application with Quarkus and LangChain4j

In this tutorial, you learn how to create a simple RESTful Java AI application that asks a large language model (LLM) to write a short poem based on a topic provided by the user.

Java

Tutorial

Build an AI-powered document assistant with Quarkus and LangChain4j

Learn how Quarkus combined with LangChain4j provides a seamless way to build AI-powered applications that start in milliseconds and consume minimal resources.

Java

Tutorial

Developing JMS apps with Quarkus and GraalVM

In this tutorial, we’ll create applications that use the AMQP open messaging protocol which IBM MQ supports with QPid AMQP JMS APIs. We’ll run these applications as standard Java applications, as Quarkus applications, and finally as GraalVM applications.

IBM MQ

Tutorial

Create a simple REST application using Quarkus

This quick start guide gets you up and running with Quarkus on macOS, including necessary tools. You will build a basic database application using Quarkus, Java 17, PostgreSQL, and Hibernate ORM Panache.

Java

Tutorial

Using Arrow Flight with Spark Java applications in IBM Cloud

Learn how the Arrow Flight service provided by IBM Cloud Pak for Data can be used to read and write data sets from within a Spark Java application that is deployed in IBM Analytics Engine. Arrow Flight provides a common interface for Spark applications to interact with a variety of different data sources.

Apache Spark

Tutorial

Getting started with new I/O (NIO)

Learn how to leverage the Java NIO library for high-speed, block-oriented I/O in standard Java code. This comprehensive tutorial covers essential I/O elements, standard I/O, and advanced topics like asynchronous I/O and direct buffers. Ideal for programmers familiar with basic Java concepts, the tutorial includes code samples for hands-on practice.

Java

Tutorial

Build your own Java library

This tutorial reviews how the Java language can help you make a good, reusable library. It covers the key principles of good library design and the most efficient ways to implement each of these ideas in the Java language.

Java

Tutorial

Transform monolithic Java applications into microservices with the power of AI

Modernize business applications using IBM Mono2Micro to transform monolithic Java applications into microservices with the power of AI.

IBM Cloud Pak for Applications

Tutorial

Use Spring Kafka to access an Event Streams service

Learn how to use Spring Kafka to access an IBM Event Streams service on IBM Cloud.

Java

Tutorial

Develop MQ JMS applications with Spring Boot

Use the MQ Spring JMS Starter or a ready-to-use SpringBoot MVC project to access an IBM MQ server from a Spring Boot application

IBM MQ

Tutorial

Build Java records from COBOL with IBM Record Generator

Automate the generation of Java helper classes from a COBOL copybook using the IBM Record Generator for Java V3.0.

COBOL

Tutorial

Embed speech-to-text functions into your Java application

Build and run a Java Spring Boot web application that uses IBM Watson Speech to Text as a back-end service.

Embeddable AI
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