The Apple Java for OS X 2012-006 1.0 update for Mac OS X 10.7, 10.8 operating systems delivers improved security, reliability, and compatibility by uninstalling the Apple-provided Java applet plug.

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While you can download the binaries for Java 7 for Windows and Linux from here, the instructions for setting up Java 7 for Mac OS X are a lot more tedious.

1. Go to the apple dev java downloads page and get the latest one you can (the apple dev web site will not let you download packages that are unsuitable for your OS version). I installed Java Developer Package for Mac OS X 10.6 Update 5 (Disk Image). Then I executed these commands.
2. With Mac OS 10.7 (Lion) and later, the Java runtime is no longer installed automatically as part of the OS installation. Follow any of the methods below to install Java runtime.
3. All things considered, Java for OS X is the thing that makes it possible for any application created using the Java framework to run on any Mac, with an interface that makes it look like a native app. Java update Java updater Update Java Java Updater Update JVM.
4. Java 7 download free download - Apple Java for OS X 10.7/10.8, Apple Java for OS X 10.6, Java 2 SE, and many more programs.

Here are the official instructions for Mac OS X: http://wikis.sun.com/display/OpenJDK/Mac+OS+X+Port

You can follow the instructions line by line and get Java 7 installed on your machine. However, these are the things that might go wrong:

Missing binaries in /bin

The installation expects a bunch of binaries to be present in /bin. However, on my Mac OS X, these binaries were present in /usr/bin/. My workaround was to create symlinks in the /bin directories to make the build happy.

Download Java For Mac Os

Repeat the above for each binary that is reported missing in /bin.

Missing jni.h

Make sure that the version of XCode is 3.2.5 or more. I had a 3.2.4 version and that didn’t work.

Building JTReg did not work due to a known bug

It is mentioned in the JTReg build documentation but easy to miss it. The following does not work due to a know bug:

Instead try this:

Wrong installation directory in the official instructions

The official instructions ask you to do this:

That didn’t work for me. Here’s what worked for me:

Finally, setting up env vars

The easiest way to make confirm that Java 7 is successfully installed is:

The output of the above should be:

Then type ‘java -version’ against the above installation

Since I use Java 1.6 on the same machine, I saved the 1.7 path as follows:

This lets me conveniently switch to Java7, when I need to, and back:

Java 7 Mac Os X 10.6.8

Switch back:

Using Java7

Simplest way to use test Java7 is via command line

Compile

Run

From http://www.vineetmanohar.com/2011/03/installing-java-7-on-mac-os-x/

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Newest post on how to install Oracle JDK 8 / Java SE 8 on Mac OS X 10.10 Yosemite can be found here.

At the time of this writing, there is no official release of Java SE 7 / Oracle JDK 1.7 on Mac OS X. It is still in developer preview based on Apple’s contributions to OpenJDK. The Developer Preview is provided to the community so that the developers can get feedback on the ongoing progress of the project. The developer preview should work on any Intel-based Mac and has been tested on Mac OS X 10.6.8 (Snow Leopard) and 10.7 (Lion).

UPDATE

Oracle has launched the official Java SE 7 for Mac OS X 64-bit platform. You can download it from here.

This tutorial shows you how to install Java SE 7 Developer Preview on Mac OS X 10.7.2 Lion running on my MacBook Pro.

1. Download the Oracle JDK7 Mac OS X port dmg file from here. At the time of this writing, the version of the JDK7 is Oracle JDK7 build b223 released on December 23, 2011. The dmg file name is jdk-7-ea-macosx-b223.dmg

2. Create a JavaVirtualMachines folder under /Library/Java if it doesn’t exist.

In my case, the JavaVirtualMachines is already there so I don’t need to create it manually.

3. Open the jdk-7-ea-macosx-b223.dmg file by double-clicking on it. Then drag the JDK 1.7.0 Developer Preview icon in the left side to the JavaVirtualMachines icon folder in the right side.

Java For Mac 10.7

4. Go to /Library/Java/JavaVirtualMachines directory using Finder application. Then double-click the ‘JDK 1.7.0 Developer Preview’ icon. This will open the Java Preferences window. Here you can change the preferred order of the installed Java platforms by dragging it up or down. Make sure the Java SE 7 is in the preferred order or you can simply deselect the Java SE 6 version.

5. Now issue the ‘java -version’ command in the terminal window to verify.

Java 7 Update For Mac Os Catalina

6. Done