Java sdk для mac os

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Java ME Downloads

Java Platform Micro Edition Software Development Kit 3.0 for Mac OS

Java ME Platform SDK is a state-of-the-art toolbox for developing mobile applications. It provides device emulation, a standalone development environment, and a set of utilities for rapid development of Java ME applications.

On Windows, Java ME SDK 3.0 is the successor to the popular Java Wireless Toolkit 2.5.2 and Java Toolkit 1.0 for CDC. It integrates CLDC, CDC and Blu-ray Disc Java (BD-J) technology into one SDK.

The Java ME SDK 3.0 is now available for Windows XP and Vista 32-bit, and for the Mac OS. The Mac OS release brings support for CLDC mobile development to Mac users for the first time.

Having trouble installing? See How to Install.

System Requirements

This section lists minimum hardware and software requirements for installation on your PC.

Minimum Hardware

300-350 MB hard disk space
1 GB system RAM
1 GHz Pentium CPU

Required Software

Mac OS X 10.5.8 with recent software and hardware updates
Java SE Development Kit — JDK 1.6 preferred; JDK 1.5 supported (please refer to Release Notes for additional information).
Apple QuickTime player (required to play AMR media on Windows)

Device Environment

Required only for on-device test and debug.

Windows Mobile 6.0 platform installed on a target device with network connectivity, 32-bit RISC based microprocessor, and minimum 64 MB RAM.

How to Install

Verify that your system meets the preceding system requirements.
Download the DMG file.
Double-click the DMG file.
Click Agree to accept the license and continue the installation.
The installer displays the installation panel. Dragging the Java ME SDK application icon over the Applications folder link will install Java ME SDK in the Applications folder. You can also use the Finder to move the application.
In the Applications directory, click the Java ME SDK icon to start the application. Wait a few seconds for the Device Manager to detect the default devices delivered with the SDK.

Java Community Involvement

The Java community projects PhoneME and PhoneMEAdvanced are the core around which Java ME Platform SDK is built. The community can also contribute to examples shipped with the product through the MEApplicationDevelopers project or contribute to features of a Lightweight UI Toolkit.

Key Features

Integration with 3rd party emulators and Windows Mobile devices

The new Java ME Platform SDK architecture allows integration of 3rd party emulators and devices. Java ME Platform SDK comes with Sun’s Java runtime environment for Windows Mobile. A user can install this runtime on a Windows Mobile device or a Microsoft device emulator and experience all the on-device features of Java ME Platform SDK.

On-device deployment and on-device debugging

Having an emulator doesn’t eliminate the need for testing your application on a real device. The new SDK simplifies this process with seamless deployment to real devices and on-device debugging.

New CLDC HotSpot Virtual Machine

The deprecated KVM has been replaced with the CLDC HotSpot VM. This new implementation is a highly-optimized virtual machine which provides a significant performance advantage over KVM.

Optimized MSA 1.1 Stack with Extensions

Java ME Platform SDK contains an optimized CLDC/MIDP stack. This implementation supports multitasking and is built upon CLDC 1.1 and MIDP 2.1. It also contains the following new JSRs:

Mobile Sensor API (JSR 256)
XML API for Java ME (JSR 280)
Payment API (JSR 229)

Profiling support

A built-in profiler lets you easily profile your CLDC/MIDP applications. The profiler is based on the successful Netbeans profiler used in VisualVM, which is bundled with Java SE 6.

New development environment based on the Netbeans Platform

The Java ME SDK leverages the successful Netbeans platform. It provides a reliable and flexible windowing system, a logging facility, and a modularized environment with the ability to update on the fly. A shared project system allows easy transition of your project to the rich, full-featured CLDC/MIDP development tool Netbeans Mobility Pack.

Device search database integrated in SDK

Find technical specifications of thousands of mobile devices using the built-in WURFL database search engine. The database search tool is versatile and easy to use, allowing you to search a large number of mobile device properties. More than 8000 device specifications are accessible from the Java ME Platform SDK.

JavaFX Mobile Emulator

The SDK includes the JavaFX Runtime and two default phone skins for JavaFX Mobile. The SDK may run a JavaFX application in JAD and JAR form and allows you to profile JavaFX Mobile applications.

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Java sdk для mac os

The following are the system requirements for installing the JDK on macOS:

Any Intel-based computer running macOS.

You cannot install Java for a single user. Installing the JDK on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK on macOS.

Determining the Default JDK Version on macOS

When starting a Java application through the command line, the system uses the default JDK.

You can determine which version of the JDK is the default by entering java -version in a Terminal window. If the installed version is 15 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 15 . For example:

To run a different version of Java, either specify the full path, or use the java_home tool. For example:

$ /usr/libexec/java_home -v 15 —exec javac -version

Installing the JDK on macOS

Download the JDK .dmg file, jdk- 15 . interim.update.patch _osx-x64_bin.dmg from Java SE Downloads page.

Click Accept License Agreement .

Uninstalling the JDK on macOS

Do not attempt to uninstall Java by removing the Java tools from /usr/bin . This directory is part of the system software and any changes will be reset by Apple the next time that you perform an update of the OS.

Go to /Library/Java/JavaVirtualMachines .
Remove the directory whose name matches the following format by executing the rm command as a root user or by using the sudo tool:

For example, to uninstall 15 Interim 0 Update 0 Patch 0:

$ rm -rf jdk- 15 .jdk

Installation FAQ on macOS Platform

This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.

1. How do I find out which version of Java is the system default?

When you run a Java application from the command line, it uses the default JDK. If you do not develop Java applications, then you do not need to worry about this. See Determining the Default JDK Version on macOS.

2. How do I uninstall Java?

3. After installing Java for macOS 2012-006, can I continue to use Apple’s Java 6 alongside the macOS JDK for Java 15 ?

If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:

$ export JAVA_HOME=`/usr/libexec/java_home -v 14`

Some applications use /usr/bin/java to call Java. After installing Java for macOS 2012-006, /usr/bin/java will find the newest JDK installed, and will use that for all of the Java-related command-line tools in /usr/bin . You may need to modify those applications to find Java 6, or contact the developer for a newer version of the application.

4. What happened to the Java Preferences app in Application Utilities?

The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.

Источник

Java sdk для mac os

The following are the system requirements for installing the JDK on macOS:

Any Intel-based computer running macOS.

You cannot install Java for a single user. Installing the JDK on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK on macOS.

Determining the Default JDK Version on macOS

When starting a Java application through the command line, the system uses the default JDK.

You can determine which version of the JDK is the default by entering java -version in a Terminal window. If the installed version is 11 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 11 . For example:

To run a different version of Java, either specify the full path, or use the java_home tool. For example:

$ /usr/libexec/java_home -v 11 —exec javac -version

Installing the JDK on macOS

Download the JDK .dmg file, jdk- 11 . interim.update.patch -macosx-x64.dmg .

Before the file can be downloaded, you must accept the license agreement.

Uninstalling the JDK on macOS

Go to /Library/Java/JavaVirtualMachines .
Remove the directory whose name matches the following format by executing the rm command as a root user or by using the sudo tool:

For example, to uninstall 11 Interim 0 Update 0 Patch 0:

$ rm -rf jdk- 11 .jdk

Installation FAQ on macOS Platform

This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.

1. How do I find out which version of Java is the system default?

2. How do I uninstall Java?

3. After installing Java for macOS 2012-006, can I continue to use Apple’s Java 6 alongside the macOS JDK for Java 11 ?

If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:

$ export JAVA_HOME=`/usr/libexec/java_home -v 11`

4. Can I restore Apple Java after uninstalling Oracle Java?

Go back to Apple Java using the following instructions:

Uninstall Oracle Java by deleting the plug-in file. From a command-line, enter:

$ sudo rm -rf «/Library/Internet Plug-Ins/JavaAppletPlugin.plugin»

Create a symlink using the following command, entered on a single line:

$ sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin «/Library/Internet Plug-Ins/JavaAppletPlugin.plugin»

5. What happened to the Java Preferences app in Application Utilities?

The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.

Источник

Java sdk для mac os

The following are the system requirements for installing the JDK on macOS:

Any Intel-based computer running macOS.

You cannot install Java for a single user. Installing the JDK on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK on macOS.

Determining the Default JDK Version on macOS

When starting a Java application through the command line, the system uses the default JDK.

You can determine which version of the JDK is the default by entering java -version in a Terminal window. If the installed version is 13 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 13 . For example:

To run a different version of Java, either specify the full path, or use the java_home tool. For example:

$ /usr/libexec/java_home -v 13 —exec javac -version

Installing the JDK on macOS

Download the JDK .dmg file, jdk- 13 . interim.update.patch _osx-x64_bin.dmg .

Before the file can be downloaded, you must accept the license agreement.

Uninstalling the JDK on macOS

Go to /Library/Java/JavaVirtualMachines .
Remove the directory whose name matches the following format by executing the rm command as a root user or by using the sudo tool:

For example, to uninstall 13 Interim 0 Update 0 Patch 0:

$ rm -rf jdk- 13 .jdk

Installation FAQ on macOS Platform

This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.

1. How do I find out which version of Java is the system default?

2. How do I uninstall Java?

3. After installing Java for macOS 2012-006, can I continue to use Apple’s Java 6 alongside the macOS JDK for Java 13 ?

If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:

$ export JAVA_HOME=`/usr/libexec/java_home -v 13`

4. What happened to the Java Preferences app in Application Utilities?

The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.

Источник