Mac OS X System Requirements for Oracle Java 7 and later versions
Intel-based Mac running Mac OS X version 10.7.3 and above
A 64-bit browser (examples; Safari, Firefox)
32-bit browsers do not support Java 7 and later versions on the Mac platform
The screen shots and instructions below are for Java 7 Update 6 (7u6).
If you are installing another version, make sure you change the version number appropriately. Example: For Java version 7 Update 65 (7u65) the file to download is jre-7u65-macosx-x64.dmg.
Install Java on Mac
Download the jre-7u6-macosx-x64.dmg file.
Review and agree to the terms of the license agreement before downloading the file.
Double-click the .dmg file to launch it
Double-click on the package icon to launch install Wizard
The Install Wizard displays the Welcome to Java installation screen. Click Continue
On Standard Install on Macintosh HD, Click the Install button
After the installation has completed, a confirmation screen appears. Click Close to finish the installation process.