The Oracle, formerly known as Sun, Java framework is used to run Java-based applications on your computer. The full Java installation requires administrative privileges to run and exists as a systemwide setting. Although this is the ideal installation form, it is not always possible to acquire administrative rights on the machine you wish to run a Java program or applet on. You can install Java with only a user-based permission scheme providing you use the limited-rights installation available from the PortableApps.com website. This version of Java will only work on your user account but does not require additional permissions to install.
Visit the portableapps.com website in your preferred browser.
Type "jPortable" in the Search bar at the upper right corner of the screen, then press "Enter."
Select "jPortable" from the list of results, then click the "Download" button.
Save the file to your hard drive, then double-click it to begin the set-up process.
Select your preferred language from the drop-down list of available languages, then click "OK."
Click "Next," then review the license terms. Place a check mark in the "I Accept..." box to accept the license terms. You cannot proceed until you accept these conditions.
Click "Install" to begin the installation of the Java framework. The program will be installed on your local user account only.