Installation Notes

JavaTM 2 Runtime Environment, Standard Edition
Version 1.4.0
Microsoft Windows 95 / 98 / 2000 / ME / XP / NT 4.0

 Japanese

System Requirements

The JavaTM 2 Runtime Environment is intended for use on Windows 95, Windows 98 (1st or 2nd edition), Windows NT 4.0 with Service Pack 5, Windows ME, Windows XP, Windows 2000 Professional, Windows 2000 Server, or Windows 2000 Advanced Server operating systems running on Intel hardware. In non-English locales, the only edition of Windows 2000 tested with this release is the Professional edition.

A Pentium 166MHz or faster processor with at least 32 megabytes of physical RAM is required to run graphically based applications. Forty-eight megabytes of RAM is recommended for applets running within a browser using the Java Plug-in product. Running with less memory may cause disk swapping which has a severe effect on performance. Very large programs may require more RAM for adequate performance.

You should have 40 megabytes of free disk space before attempting to install the Java 2 Runtime Environment.

If you have previously installed a Beta release or the Release Candidate version of Java 2 SDK 1.4, uninstall it. Use the Microsoft Windows Add/Remove Programs utility, accessible from the Control Panel (Start --> Settings --> Control Panel).

Installation Instructions

If using Internet Explorer, you have both options below; if using Netscape NavigatorTM, you have only the "Save As" option below.
  • Open - This enables you to install the Java 2 Runtime Environment without leaving a compressed file on your hard disk.

  • Save As - This saves the downloaded file without installing it. It will be saved at C:\ by default. Check that you have downloaded the entire file by comparing the size of the file you downloaded with the expected size:

    • Java 2 Runtime Environment for all locales (international):
    j2re-1_4_0-win-i.exe       12214536 bytes

    Java 2 Runtime Environment for U.S. English only:
    j2re-1_4_0-win.exe          9373896 bytes

    The larger international version of the Java 2 Runtime Environment contains character conversion classes and support for locales other than the US English locale. Use this version of the Java 2 Runtime Environment if you will be running applications and applets that require a non-US-English locale.

    After downloading this file, you can double-click on its icon to run the installer. Note -- you must have administrative permissions in order to install the Java 2 Runtime Environment on Windows 2000 and Windows XP. Follow the instructions the installer provides. When done with the installation, to recover more disk space, delete the bundle you downloaded.

    The installation process will also install the JavaTM Plug-in product and JavaTM Web Start product will automatically be installed. Look for a Java Web Start icon on your desktop. There will also be an entry for Java Web Start in the Start --> Programs menu.

    If you run into any problems during the installation, please check the troubleshooting section of the SDK installation instructions.

Copyright © 2002 Sun Microsystems, Inc. All Rights Reserved. Sun