Java Platform

Develop and run programs written in the Java language

Together, the Java programming language and the Java platform form a powerful, proven technology for enterprise software development.

05 January 2026

Article

Achieve high performance Java applications with IBM Semeru Runtimes and Open Liberty

Boost Java application throughput with IBM Semeru Runtimes – learn how the –Xtune:throughput flag, shared classes cache, and native crypto acceleration deliver higher performance while keeping startup, rampup, and memory footprint low.

27 December 2025

Article

Eclipse OpenJ9 garbage collection policies and heap tuning for high-performance Java applications

Discover how to optimize Eclipse OpenJ9 garbage collection policies, tune Java heap configurations, reduce pause times, and improve JVM performance for large-scale applications.

21 December 2025

Article

Java streams and lambda expressions alternatives to the traditional for loop

Explore Java stream and lambda expression alternatives to traditional for loops, with practical examples for functional programming, cleaner iteration, improved readability, better maintainability, and modern Java best practices for enterprise and cloud-native applications.

21 December 2025

Article

Java API design best practices

Discover expert Java API design techniques to ensure compatibility in modular and non-modular environments, improve developer productivity, follow best practices for enterprise and cloud applications, and create scalable, maintainable, and globally accessible Java APIs.

19 December 2025

Tutorial

Java theory and practice: Explore the HTTP Client and WebSocket APIs

APIs that are easy to use for simple cases, but also powerful enough for complex ones.

19 December 2025

Tutorial

Java theory and practice: Interactive Java programming (REPL) with JShell, Part 2

Learn how to use auto-complete and add JAR files, classes, and modules to sessions.

19 December 2025

Article

Java ZeroCopy I/O optimization for high throughput networking

Discover Java ZeroCopy techniques for high-performance I/O using NIO, FileChannel, transferTo, and sendfile to improve throughput, scalability, and networking efficiency.

19 December 2025

Tutorial

Java theory and practice: Run single-file source code programs without compilation

Explore this convenient Java 11 feature that allows you to directly run a Java source code file without compilation.

19 December 2025

Tutorial

Java theory and practice: Effective use of the new switch statement and expression in Java

Simplify everyday coding and prepare the way for using pattern matching.

19 December 2025

Series

Java theory and practice

Learn what's new in Java to help you get ahead on the next iteration of Java coding.

19 December 2025

Tutorial

Java theory and practice: Interactive Java programming (REPL) with JShell, Part 1

Learn how this read-eval-print loop environment can help you explore new features in a fast way.

19 December 2025

Tutorial

Java theory and practice: Explore new APIs and language features

Explore new classes, security features, HTTP Client, and a no-compile code launch technique that every developer should know.

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Java Platform

Develop and run programs written in the Java language

Achieve high performance Java applications with IBM Semeru Runtimes and Open Liberty

Eclipse OpenJ9 garbage collection policies and heap tuning for high-performance Java applications

Java streams and lambda expressions alternatives to the traditional for loop

Java API design best practices

Java theory and practice: Explore the HTTP Client and WebSocket APIs

Java theory and practice: Interactive Java programming (REPL) with JShell, Part 2

Java ZeroCopy I/O optimization for high throughput networking

Java theory and practice: Run single-file source code programs without compilation

Java theory and practice: Effective use of the new switch statement and expression in Java

Java theory and practice

Java theory and practice: Interactive Java programming (REPL) with JShell, Part 1

Java theory and practice: Explore new APIs and language features