System Requirements :-
A)Software - Java 2 SDK Standard Edition, 1.4.2 is supported on i586 Intel and 100% compatible platforms running Microsoft Windows.
Hardware - 1.Intel and 100% compatible processors are supported.
2.A Pentium 166MHz or faster processor with at least 32 megabytes of physical RAM is required to run graphically based applications. At least 48 megabytes of RAM is recommended for applets running within a browser using the Java Plug-in.
3.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.
B)Windows Disk Space Requirements—1.4.2 SDK/JRE Installation
1.Installation Types
With the JRE there are two basic installation options: Typical and Custom. With the SDK there is only the Custom option. For a Custom installation, the following feature options are available:
2.JRE
For the JRE the features are the following:
Feature a: Java Runtime EnvironmentFeature 2: Support for Additional LanguagesFeature 3: Additional Font and Media Support
3.SDK
For the SDK the features are the following:
Feature a: Development Tools and private JREFeature
b: DemosFeature
c: Source CodeFeature
d: Public Java Runtime Environment
4.Disk Space Requirements
For disk space requirements, there is a simple statement that can be made, and a more complex one for those who want to know all. Both types of statements are presented below.
If you have around 200MB on your computer, you should have no problem any of the installation types for the JRE or SDK. While the installer may temporarily need this amount during the installation, the number will be much smaller when the installation is complete.
Installation Instructions :-
In this procedure, you will run the self-installing executable to unpack and install the Java 2 SDK software bundle. As part of the Java 2 SDK, this installation includes the Java Plug-in and Java Web Start, as well as an option to include the public Java 2 Runtime Environment.
Note: For any text on this page containing the following notation, you must substitute the appropriate update version number for the notation.
For example, if you are downloading the installer for update 1.4.2_01, the following file name: j2sdk-1_4_2_-windows-i586.exe
would become: j2sdk-1_4_2_01-windows-i586.exe
1. Check the download file size (Optional)
If you save the self-installing executable to disk without running it from the download page at the web site, notice that its byte size is provided on the download page. Once the download has completed, check that you have downloaded the full, uncorrupted software file. 2. If 1.4.2 Beta is installed, uninstall it.
Use the Microsoft Windows Add/Remove Programs utility, accessible from the Control Panel (Start -> Settings -> Control Panel). 3. Run the Java 2 SDK installer
Note - you must have administrative permissions in order to install the Java 2 SDK on Microsoft Windows 2000 and XP.
The file j2sdk-1_4_2_-windows-i586-i.exe is the Java 2 SDK installer. If you downloaded it instead of running it directly from the web site, double-click on the installer's icon. Then follow the instructions the installer provides. The installer may ask you to reboot your computer. jusched.exe) -->When done with the installation, you can delete the download file to recover disk space.
Update the PATH variable (Optional)
You can run the Java 2 SDK without setting the PATH variable, or you can optionally set it as a convenience.
Should I set the PATH variable?Set the PATH variable if you want to be able to conveniently run the Java 2 SDK executables (javac.exe, java.exe, javadoc.exe, etc.) from any directory without having to type the full path of the command. If you don't set the PATH variable, you need to specify the full path to the executable every time you run it, such as: C:> \j2sdk1.4.2_\bin\javac MyClass.java
It's useful to set the PATH permanently so it will persist after rebooting.
How do I set the PATH permanently?To set the PATH permanently, add the full path of the j2sdk1.4.2_\bin directory to the PATH variable. Typically this full path looks something like C:\j2sdk1.4.2_\bin. Set the PATH as follows, according to whether you are on Microsoft Windows NT or 98/2000/ME.
Microsoft Windows NT, 2000, and XP - To set the PATH permanently:
Choose Start, Settings, Control Panel, and double-click System. On Microsoft Windows NT, select the Environment tab; on Microsoft Windows 2000 select the Advanced tab and then Environment Variables. Look for "Path" in the User Variables and System Variables. If you're not sure where to add the path, add it to the right end of the "Path" in the User Variables. A typical value for PATH is: C:\j2sdk1.4.2_\bin
Capitalization doesn't matter. Click "Set", "OK" or "Apply".
The PATH can be a series of directories separated by semi-colons (;). Microsoft Windows looks for programs in the PATH directories in order, from left to right. You should only have one bin directory for a Java SDK in the path at a time (those following the first are ignored), so if one is already present, you can update it to j2sdk1.4.2_\bin.
The new path takes effect in each new Command Prompt window you open after setting the PATH variable.
Microsoft Windows 98 - To set the PATH permanently, open the AUTOEXEC.BAT file and add or change the PATH statement as follows:
Start the system editor. Choose "Start", "Run" and enter sysedit, then click OK. The system editor starts up with several windows showing. Go to the window that is displaying AUTOEXEC.BAT
Look for the PATH statement. (If you don't have one, add one.) If you're not sure where to add the path, add it to the right end of the PATH. For example, in the following PATH statement, we have added the bin directory at the right end:
PATH C:\WINDOWS;C:\WINDOWS\COMMAND;C:\J2SDK1.4.2_\BIN
Capitalization doesn't matter. The PATH can be a series of directories separated by semi-colons (;). Microsoft Windows searches for programs in the PATH directories in order, from left to right. You should only have one bin directory for a Java SDK in the path at a time (those following the first are ignored), so if one is already present, you can update it to j2sdk1.4.2_.
To make the path take effect in the current Command Prompt window, execute the following: C:> c:\autoexec.bat
To find out the current value of your PATH, to see if it took effect, at the command prompt, type: C:> path
Microsoft Windows ME - To set the PATH permanently:
From the start menu, choose programs, accessories, system tools, and system information. This brings up a window titled "Microsoft Help and Support". From here, choose the tools menu, then select the system configuration utility. Click the environment tab, select PATH and press the edit button. Now add the SDK to your path as described in step b above. After you've added the location of the SDK to your PATH, save the changes and reboot your machine when prompted.
Start using the Java 2 SDK!
Your computer system should now be ready to use the Java 2 SDK. In this step, you'll run some simple commands to make sure it is working properly.
A)Software - Java 2 SDK Standard Edition, 1.4.2 is supported on i586 Intel and 100% compatible platforms running Microsoft Windows.
Hardware - 1.Intel and 100% compatible processors are supported.
2.A Pentium 166MHz or faster processor with at least 32 megabytes of physical RAM is required to run graphically based applications. At least 48 megabytes of RAM is recommended for applets running within a browser using the Java Plug-in.
3.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.
B)Windows Disk Space Requirements—1.4.2 SDK/JRE Installation
1.Installation Types
With the JRE there are two basic installation options: Typical and Custom. With the SDK there is only the Custom option. For a Custom installation, the following feature options are available:
2.JRE
For the JRE the features are the following:
Feature a: Java Runtime EnvironmentFeature 2: Support for Additional LanguagesFeature 3: Additional Font and Media Support
3.SDK
For the SDK the features are the following:
Feature a: Development Tools and private JREFeature
b: DemosFeature
c: Source CodeFeature
d: Public Java Runtime Environment
4.Disk Space Requirements
For disk space requirements, there is a simple statement that can be made, and a more complex one for those who want to know all. Both types of statements are presented below.
If you have around 200MB on your computer, you should have no problem any of the installation types for the JRE or SDK. While the installer may temporarily need this amount during the installation, the number will be much smaller when the installation is complete.
Installation Instructions :-
In this procedure, you will run the self-installing executable to unpack and install the Java 2 SDK software bundle. As part of the Java 2 SDK, this installation includes the Java Plug-in and Java Web Start, as well as an option to include the public Java 2 Runtime Environment.
Note: For any text on this page containing the following notation, you must substitute the appropriate update version number for the notation.
For example, if you are downloading the installer for update 1.4.2_01, the following file name: j2sdk-1_4_2_
would become: j2sdk-1_4_2_01-windows-i586.exe
1. Check the download file size (Optional)
If you save the self-installing executable to disk without running it from the download page at the web site, notice that its byte size is provided on the download page. Once the download has completed, check that you have downloaded the full, uncorrupted software file. 2. If 1.4.2 Beta is installed, uninstall it.
Use the Microsoft Windows Add/Remove Programs utility, accessible from the Control Panel (Start -> Settings -> Control Panel). 3. Run the Java 2 SDK installer
Note - you must have administrative permissions in order to install the Java 2 SDK on Microsoft Windows 2000 and XP.
The file j2sdk-1_4_2_
Update the PATH variable (Optional)
You can run the Java 2 SDK without setting the PATH variable, or you can optionally set it as a convenience.
Should I set the PATH variable?Set the PATH variable if you want to be able to conveniently run the Java 2 SDK executables (javac.exe, java.exe, javadoc.exe, etc.) from any directory without having to type the full path of the command. If you don't set the PATH variable, you need to specify the full path to the executable every time you run it, such as: C:> \j2sdk1.4.2_
It's useful to set the PATH permanently so it will persist after rebooting.
How do I set the PATH permanently?To set the PATH permanently, add the full path of the j2sdk1.4.2_
Microsoft Windows NT, 2000, and XP - To set the PATH permanently:
Choose Start, Settings, Control Panel, and double-click System. On Microsoft Windows NT, select the Environment tab; on Microsoft Windows 2000 select the Advanced tab and then Environment Variables. Look for "Path" in the User Variables and System Variables. If you're not sure where to add the path, add it to the right end of the "Path" in the User Variables. A typical value for PATH is: C:\j2sdk1.4.2_
Capitalization doesn't matter. Click "Set", "OK" or "Apply".
The PATH can be a series of directories separated by semi-colons (;). Microsoft Windows looks for programs in the PATH directories in order, from left to right. You should only have one bin directory for a Java SDK in the path at a time (those following the first are ignored), so if one is already present, you can update it to j2sdk1.4.2_
The new path takes effect in each new Command Prompt window you open after setting the PATH variable.
Microsoft Windows 98 - To set the PATH permanently, open the AUTOEXEC.BAT file and add or change the PATH statement as follows:
Start the system editor. Choose "Start", "Run" and enter sysedit, then click OK. The system editor starts up with several windows showing. Go to the window that is displaying AUTOEXEC.BAT
Look for the PATH statement. (If you don't have one, add one.) If you're not sure where to add the path, add it to the right end of the PATH. For example, in the following PATH statement, we have added the bin directory at the right end:
PATH C:\WINDOWS;C:\WINDOWS\COMMAND;C:\J2SDK1.4.2_
Capitalization doesn't matter. The PATH can be a series of directories separated by semi-colons (;). Microsoft Windows searches for programs in the PATH directories in order, from left to right. You should only have one bin directory for a Java SDK in the path at a time (those following the first are ignored), so if one is already present, you can update it to j2sdk1.4.2_
To make the path take effect in the current Command Prompt window, execute the following: C:> c:\autoexec.bat
To find out the current value of your PATH, to see if it took effect, at the command prompt, type: C:> path
Microsoft Windows ME - To set the PATH permanently:
From the start menu, choose programs, accessories, system tools, and system information. This brings up a window titled "Microsoft Help and Support". From here, choose the tools menu, then select the system configuration utility. Click the environment tab, select PATH and press the edit button. Now add the SDK to your path as described in step b above. After you've added the location of the SDK to your PATH, save the changes and reboot your machine when prompted.
Start using the Java 2 SDK!
Your computer system should now be ready to use the Java 2 SDK. In this step, you'll run some simple commands to make sure it is working properly.
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