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Friday, 6 July 2018

Google Guice - Environment Setup

Google Guice - Environment Setup

Local Environment Setup

If you are still willing to set up your environment for Java programming language, then this section guides you on how to download and set up Java on your machine. Please follow the steps mentioned below to set up the environment.
Java SE is freely available from the link Download Java. So you download a version based on your operating system.
Follow the instructions to download Java and run the .exe to install Java on your machine. Once you have installed Java on your machine, you would need to set environment variables to point to correct installation directories −

Setting up the Path for Windows 2000/XP

We are assuming that you have installed Java in c:\Program Files\java\jdkdirectory −
  • Right-click on 'My Computer' and select 'Properties'.
  • Click on the 'Environment variables' button under the 'Advanced' tab.
  • Now, alter the 'Path' variable so that it also contains the path to the Java executable. Example, if the path is currently set to 'C:\WINDOWS\SYSTEM32', then change your path to read 'C:\WINDOWS\SYSTEM32;c:\Program Files\java\jdk\bin'.

Setting up the Path for Windows 95/98/ME

We are assuming that you have installed Java in c:\Program Files\java\jdkdirectory −
  • Edit the 'C:\autoexec.bat' file and add the following line at the end − 'SET PATH=%PATH%;C:\Program Files\java\jdk\bin'.

Setting up the Path for Linux, UNIX, Solaris, FreeBSD

Environment variable PATH should be set to point to where the Java binaries have been installed. Refer to your shell documentation if you have trouble doing this.
Example, if you use bash as your shell, then you would add the following line to the end of your '.bashrc: export PATH=/path/to/java:$PATH'.

Popular Java Editors

To write your Java programs, you need a text editor. There are many sophisticated IDEs available in the market. But for now, you can consider one of the following −
  • Notepad − On Windows machine you can use any simple text editor like Notepad (Recommended for this tutorial), TextPad.
  • Netbeans − It is a Java IDE that is open-source and free which can be downloaded from
  • Eclipse − It is also a Java IDE developed by the eclipse open-source community and can be downloaded from

Google Guice Environment

Download the latest version of Google Guice and related jar files.
At the time of writing this tutorial, we have copied them into C:\>Google folder.
OSArchive name

Set CLASSPATH Variable

Set the CLASSPATH environment variable to point to the Guice jar location. Assuming, you have stored Guice and related jars in Google folder on various Operating Systems as follows.
WindowsSet the environment variable CLASSPATH to %CLASSPATH%;C:\Google\guice-4.1.0.jar;C:\Google\aopalliance-1.0.jar;C:\Google\guava-16.0.1.jar;C:\Google\javax.inject-1.jar;.;
Linuxexport CLASSPATH=$CLASSPATH:Google/guice-4.1.0.jar:Google/aopalliance-1.0.jar:Google/guava-16.0.1.jar:Google/javax.inject-1.jar:.
Macexport CLASSPATH=$CLASSPATH:Google/guice-4.1.0.jar:Google/aopalliance-1.0.jar:Google/guava-16.0.1.jar:Google/javax.inject-1.jar:.

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