This topic is about Java Generics – Environment Setup.
Local Environment Setup
JUnit is a framework for Java, so the very first requirement is to have JDK installed in your machine.
System Requirement
| JDK | 1.5 or above. |
|---|---|
| Memory | No minimum requirement. |
| Disk Space | No minimum requirement. |
| Operating System | No minimum requirement. |
Step 1: Verify Java Installation in Your Machine
First of all, open the console and execute a java command based on the operating system you are working on.
| OS | Task | Command |
|---|---|---|
| Windows | Open Command Console | c:\> java -version |
| Linux | Open Command Terminal | $ java -version |
| Mac | Open Terminal | machine:< joseph$ java -version |
Let’s verify the output for all the operating systems −
| OS | Output |
|---|---|
| Windows | java version “1.6.0_21″Java(TM) SE Runtime Environment (build 1.6.0_21-b07)Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode, sharing) |
| Linux | java version “1.6.0_21″Java(TM) SE Runtime Environment (build 1.6.0_21-b07)Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode, sharing) |
| Mac | java version “1.6.0_21″Java(TM) SE Runtime Environment (build 1.6.0_21-b07)Java HotSpot(TM)64-Bit Server VM (build 17.0-b17, mixed mode, sharing) |
If you do not have Java installed on your system, then download the Java Software Development Kit (SDK) from the following link https://www.oracle.com. We are assuming Java 1.6.0_21 as the installed version for this tutorial.
Step 2: Set JAVA Environment
Set the JAVA_HOME environment variable to point to the base directory location where Java is installed on your machine. For example.
| OS | Output |
|---|---|
| Windows | Set the environment variable JAVA_HOME to C:\Program Files\Java\jdk1.6.0_21 |
| Linux | export JAVA_HOME = /usr/local/java-current |
| Mac | export JAVA_HOME = /Library/Java/Home |
Append Java compiler location to the System Path.
| OS | Output |
|---|---|
| Windows | Append the string C:\Program Files\Java\jdk1.6.0_21\bin at the end of the system variable, Path. |
| Linux | export PATH = $PATH:$JAVA_HOME/bin/ |
| Mac | not required |
Verify Java installation using the command java -version as explained above.
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