legran hathor clayburn
Sergei Chime
How to Download and Install JDK 1.8 on Mac OS X
If you want to develop Java applications on your Mac, you need to install the Java Development Kit (JDK) 1.8. The JDK includes the Java Runtime Environment (JRE), which is required to run Java programs, as well as the tools and libraries for developing and debugging Java code. Here are the steps to download and install JDK 1.8 on Mac OS X:
- Go to www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html and select the macOS x64 Installer for JDK 1.8.
- Click the Accept License Agreement checkbox and then click the Download button. You may need to sign in with your Oracle account or create one if you don't have one.
- Save the .dmg file to your preferred location on your Mac.
- From either the browser Downloads window or from the file browser, double-click the .dmg file to start it. A Finder window appears that contains an icon of an open box and the name of the .pkg file.
- Double-click the JDK 1.8.pkg icon to start the installation application. The installation application displays the Introduction window. Click Continue.
- Review the license agreement and click Continue. Click Agree to accept the terms of the license agreement.
- Select a destination for the installation and click Continue. You can either choose Install for all users of this computer or Install for me only.
- Click Install to begin the installation process. You may need to enter your administrator password.
- Wait for the installation to complete. Click Close when prompted.
- To verify that the installation was successful, open a terminal window and type
java -version. You should see something like this:
java version "1.8.0_311"If you see this output, congratulations! You have successfully installed JDK 1.8 on your Mac OS X.
Why Use JDK 1.8?
JDK 1.8, also known as Java 8, is the eighth major release of the Java programming language. It introduced many new features and enhancements that make Java more expressive, concise, and powerful. Some of the most notable features of JDK 1.8 are:
- Lambda expressions: A new syntax for writing anonymous functions that can be passed as arguments to other methods or used as variables. Lambda expressions enable functional programming style and simplify the code for common tasks such as filtering, mapping, or sorting collections.
- Streams: A new API for processing sequences of data in a declarative way. Streams support lazy evaluation, parallel execution, and various operations such as filtering, mapping, reducing, grouping, or finding elements.
- Default methods: A new way to add new functionality to existing interfaces without breaking compatibility with existing implementations. Default methods provide a default implementation for a method that can be overridden by a subclass or a lambda expression.
- Date and time API: A new set of classes and interfaces for representing and manipulating date and time values. The new API is based on the ISO 8601 standard and supports various calendars, time zones, units, and formats.
- Nashorn JavaScript engine: A new implementation of the JavaScript scripting language that runs on the Java Virtual Machine (JVM). Nashorn allows Java and JavaScript code to interoperate seamlessly and efficiently.
- Other improvements: JDK 1.8 also includes many other enhancements such as type annotations, method references, optional values, concurrent accumulators, parallel array sorting, cryptographic algorithms, security enhancements, performance improvements, and bug fixes.
JDK 1.8 is still widely used by many developers and applications because it offers a stable, mature, and performant platform for developing and running Java programs. However, JDK 1.8 is no longer updated by Oracle for free unless it is used for personal or development purposes only. For commercial or production use, a license fee is required. Alternatively, there are other free and open source implementations of JDK 1.8 such as AdoptOpenJDK, Azul Zulu, Amazon Corretto, or Microsoft Mobile OpenJDK Preview.
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