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To start learning Java, install a Java Development Kit (JDK), write and run a small program, then build up the language fundamentals before tackling a project. Oracle’s download listing showed JDK 27 as its latest release and JDK 25 as its latest long-term support (LTS) release on October 8, 2026; check the live listing and the terms for your chosen version before downloading.
What do you need to develop Java programs?
You need a JDK: the set of development tools used to create Java applications. Java.com describes it as including the Java Runtime Environment, compiler, and Java APIs, and says, “Writing Java applications needs development tools like the JDK.” That is different from simply running an existing Java application, which may not require you to write or compile code yourself.
For a beginner, the simplest plan is to install a JDK, choose a way to edit and run code, and follow a current guided learning path. Oracle’s Developing Java programs with the JDK page explains the JDK’s role.
Which Java version should a beginner install?
Oracle’s Java Downloads listing identified JDK 27 as the latest release and JDK 25 as the latest LTS release on October 8, 2026. This is a dated snapshot, not a permanent version recommendation: release listings change, so verify the current options before installing. Oracle presents licensing and update terms by release; read the terms shown for the specific version you select.
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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →For a first course or project, matching the version expected by its instructions can avoid avoidable setup differences. If the course does not specify a version, a current LTS release is a reasonable starting point for a longer-lived learning setup, but check the course’s compatibility guidance.
How do you install Java?
Choose a download that matches both your operating system and processor architecture. Oracle’s installation overview has separate guidance for Windows, Linux, and macOS; its Java Downloads page lists platform- and architecture-specific files.
- Check your system. Identify whether you use Windows, macOS, or Linux and, where relevant, your processor architecture.
- Choose a JDK release and distribution. Review the available files and the licensing and update terms for that release on Oracle’s Java Downloads page.
- Follow the instructions for your operating system. Use Oracle’s JDK installation overview as a guide for Windows, Linux, and macOS. It covers JDK 24, so check the instructions associated with your selected release if details differ. Linux installation options include archives and package-based installation.
- Confirm the installation. Follow the verification steps in the installation instructions for your operating system and release before moving on to a first program.
If you already use Visual Studio Code, another option is the Oracle Java Platform extension. Dev.java describes a JDK Downloader flow that can set up a JDK and let you choose Oracle JDK, OpenJDK, or a JDK installed locally. This is a convenience route, not a requirement for learning Java. See Downloading Java.
How should you write and run your first Java program?
Dev.java’s Your First Steps in Java guide covers setup, writing an initial program, and running it in an editor or from the command line, as well as using IDEs. Follow the path that fits your course or project; there is no universal winner between a simple editor and an IDE.
| Approach | Setup and learning trade-off | Useful when |
|---|---|---|
| Editor and command line | Lets you see more of the compile-and-run workflow, but you may need to handle more setup and commands yourself. | You want to understand the basic build-and-run steps or your learning material uses this workflow. |
| IDE | Provides an integrated workspace and debugging assistance, but may hide some of the underlying command-line process. | Your course or project uses an IDE, or you want its editing and debugging tools. |
Whichever route you pick, type the example rather than only reading it. Run it, make a small change, and run it again. That gives you an immediate way to connect the code you write with the program’s output.
Try short code with JShell
JShell is Java’s interactive read-eval-print loop. It evaluates declarations, statements, and expressions, so you can experiment with short snippets without first creating a full project. Use it to test a simple expression or language feature; use a regular source file when you are ready to build a complete program.
What should you learn after the first program?
Move from small language building blocks to the tools used in larger programs. Dev.java is the current starting point for guided learning. Oracle’s classic Java Tutorials remain a useful map of subject areas, but Oracle states that they were written for JDK 8 and directs readers to Dev.java for updated tutorials.
- Variables, types, and expressions: learn how Java represents values and combines them.
- Decisions and loops: use conditions to choose what happens and repetition to process multiple steps.
- Methods: group behavior into reusable operations and understand how information is passed in and returned.
- Classes and objects: learn the core structure Java uses to organize code and data.
- Collections, exceptions, and input/output: work with groups of values, handle failures, and read or write information.
- Date and time: learn the APIs for representing and working with dates and times.
After those foundations, consolidate them in a small project. A text-based quiz, expense tracker, or number-guessing game can give you a reason to combine variables, decisions, loops, methods, and classes. Keep the first version small enough to finish, then add features as you learn.
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Should you use a book or online tutorials?
Dev.java’s free tutorials are the better first stop for current-release guidance. If you prefer a printed reference, Oracle identifies The Java Tutorial, Sixth Edition as available in book form. Treat it as optional: the companion classic tutorial materials are JDK 8-era, so they should not replace current guidance when version-specific instructions matter.
| Option | Best fit | Currency consideration |
|---|---|---|
| Dev.java tutorials | Guided, hands-on learning with current Java material. | Oracle points beginners to Dev.java for updated tutorials. |
| The Java Tutorial, Sixth Edition | Learners who value a physical reference alongside practice. | Oracle’s classic tutorial index says its materials target JDK 8. |
The classic tutorial index displayed a last-updated date of October 25, 2024. See The Java Tutorials for its scope and link to newer material.
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