In this beginners java Tutorial ,We will first download, install and configure the J2SE development environment.
Downloading and Installing J2SE Software
on Windows Platform
To download J2SE for development visit http://www.java.sun.com/j2se and download J2SE on your machine. In this tutorial we have used jdk-1_5_0_06-windows-i586.exe.The java 2Platform or (JDK) can be downloaded from the sun. Formerly Known as the java Development kit ,or JDK, Downloading java is really about downloading the java 2 plat form that comes in three editions , J2ME, J2SE and J2EE , if you are learning java, then, you should start by downloading J2EE.
Once you have downloaded the j2se on your system, you are ready to install . In the following section we will learn how to install jdk development environment on your machine. here are the step to install JDK on your windows machine.
Double click the JDK down loaded file, the executable extracts the required Contents to the temporary directory and then License agreement screen appears. On the license agreement page read and accept the license and the click the next button .
The custom setup screen appears as follows.
Click on the change button to change the installation directory to "c:\jdk1.5.0_06" as shown in the following screen.
and click on the "OK" button. After clicking on the "OK" button installation begins:
In the next window installer asks for the installing the runtime as shown in the following screen:
Click on next button install the J2SE runtime on your machine. Next screen shows the browser selection:
Click on the "Next" button.
Once the installation is finished it shows you the final screen indications the success. Now you have successfully installed J2SE on your machine. Installer shows the following final confirmation window as shown below:
Click on the "Finish" button to exit from the installer.
Configuring the installation on windows machine:
In this Section we will add some settings to the windows environment so that the java compiler and runtime becomes available for compiling and running the java application.
Go to the control panel and double click on "System Properties" and to to the advance tab.
and add "c:\jdk1.5.0_06" to path variable:
and click on ok button. To save the setting click on "OK" button.
This will make the java environment available for development. Open the dos prompt and type javac on the console, it should show the following output:
|Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:\Documents and Settings\Administrator>java
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
where options include:
-client to select the "client" VM
-server to select the "server" VM
-hotspot is a synonym for the "client" VM [deprecated]
The default VM is client.
-cp <class search path of directories and zip/jar files>
-classpath <class search path of directories and zip/jar files>
A ; separated list of directories, JAR archives,
and ZIP archives to search for class files.
set a system property
enable verbose output
-version print product version and exit
require the specified version to run
-showversion print product version and continue
-jre-restrict-search | -jre-no-restrict-search
include/exclude user private JREs in the version search
-? -help print this help message
-X print help on non-standard options
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions
load native agent library <libname>, e.g. -agentlib:hprof
see also, -agentlib:jdwp=help and -agentlib:hprof=help
load native agent library by full pathname
load Java programming language agent, see java.lang.instrument
C:\Documents and Settings\Administrator>
Now your development environment is ready for development.
If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.
Ask your questions, our development team will try to give answers to your questions.