Download the Java™ 2SE, version 1.4.2_03 for Linux from:

http://java.sun.com/products/archive/j2se/1.4.2_03/index.html

Change the bin file to be executable by typing the following in the command prompt at the location where you downloaded the file:

$ chmod +x j2sdk-1_4_2_03-linux-i586.bin

Note that if you downloaded the rpm version of the file, this command would contain the rpm.bin extension.

Install the excutable from the command prompt.

$ mkdir /usr/java
$ cd /usr/java
$$HOME/j2sdk-1_4_2_03-linux-i586.bin

Read and accept the license agreement. You should see the following text as the last three lines of the installation:

Creating j2sdk1.4.2_03/jre/lib/plugin.jar
Creating j2sdk1.4.2_03/jre/javaws/javaws.jar
Done.

Create an environment variable for JAVA_HOME by typing either of the following:

$ setenv JAVA_HOME /usr/java/j2sdk1.4.2_03 for csh

or

$ export JAVA_HOME=/usr/java/j2sdk1.4.2_03 for bash

Add the J2SDK path to your PATH variable by typing either of the following:

$ setenv PATH ${PATH}:${JAVA_HOME}/bin for csh

or

export PATH=${PATH}:${JAVA_HOME)/bin for bash

Note: You may want to add the environment entries in steps 4 and 5 to the ${HOME}/.bash_profile (for bash) or ${HOME}/.login (for csh) scripts, in addition to the current terminal window.

Test the installation by checking the version of Java installed:

$ java -version

Download JDeveloper10g version 9.0.5.2 from OTN:

http://otn.oracle.com/software/products/jdev/index.html

Extract the files into a directory named /jdeveloper.

unzip jdev9052.zip -d /jdeveloper

You may wish to extract the files to /usr/local/jdeveloper or /$HOME/jdeveloper. Note that if the install directory is not under $HOME, then you will need to be the root user in order to extract the files.

Now make a backup copy of JDeveloper's configuration file and add the JAVA_HOME location to the SetJavaHome property in the file.

$ cd /jdeveloper/jdev/bin
$ cp jdev.conf jdev.conf.backup
$ echo "SetJavaHome $JAVA_HOME" >> jdev.conf

$ chmod +x /jdeveloper/jdev/bin/jdev
$ chmod +x /jdeveloper/jdev/bin/ojc

For further information on setting permissions, see install.html located in the /jdeveloper/jdev directory.

Run JDeveloper by typing jdev from the jdev/bin directory in the terminal window.

If you see a warning message concerning the J2SDK version, click Yes to run JDeveloper using the J2SDK that you've installed. J2SDK version 1.4.2_03 is supported on the Linux Operating System.

Right click Applications in the Application Navigator and select New Application Workspace.

Create the Workspace in the default location.

Double click StrutsPageFlow in the Application Navigator to open the Page Flow Diagram in the editor.

Select Page from the Component Palette and click inside the Page Flow Diagram to create the page reference.

Double click untitled1.jsp to create the JSP and open it in the visual JSP editor. Type the text Hello World into the editor.

Next specify a browser for JDeveloper to launch when the JSP is run. Select Preferences from the Tools menu.

Select Web Browser/Proxy from the categories list and enter the command for your preferred browser.

Select Yes to use the specified command even though the executable might not be verified.

Right click the JSP in the visual editor and select Run untitled1.jsp to run the JSP in the embedded OC4J server.

The OC4J server is started, and the JSP displays in the browser you specified.