Being a Java developer, I always compile and test my code on different Java versions. But switching between them is a huge problem. So finally I found an easy method to do this. You have to create following batch files and place them in directory you open your command line in or in SYSTEM PATH. You can use you favorite text editor to create these files.
jdk14.bat
@echo off echo Setting JAVA_HOME set JAVA_HOME=C:\j2sdk1.4.2_12 echo setting PATH set PATH=C:\j2sdk1.4.2_12\bin;%PATH% echo Display java version java -version
jdk15.bat
@echo off echo Setting JAVA_HOME set JAVA_HOME=C:\Program Files\Java\jdk1.5.0_12 echo setting PATH set PATH=C:\Program Files\Java\jdk1.5.0_12\bin;%PATH% echo Display java version java -version
jdk16.bat
@echo off echo Setting JAVA_HOME set JAVA_HOME=C:\Program Files\Java\jdk1.6.0_11 echo setting PATH set PATH=C:\Program Files\Java\jdk1.6.0_11\bin;%PATH% echo Display java version java -version
Make sure you assign the appropriate JAVA_HOME value in batch files, according to your Java installation. Whenever you want to switch between Java versions, just run the respective batch file and you are done.
Note- JAVA_HOME and the path to java must always refer to the exact same version of the JDK. If you mix them up, unpredictable things will happen!
Comments (2)
Your note is very true, so make sure you don't run more than one batch file in the same command-window. Close the command window and open a new one first.
Posted by SwitchBL8 | December 14, 2008 1:57 AM
Posted on December 14, 2008 01:57
why don´t use te JAVA_HOME variable for setting the PATH variable?
Like this:
@echo off
echo Setting JAVA_HOME
set JAVA_HOME=C:\Archivos de programa\Java\jdk1.6.0_07
echo setting PATH
set PATH=%JAVA_HOME%\bin;%PATH%
echo Display java version
java -version
This way we reduce the risks you mention
Posted by Roman Rubio | December 15, 2008 9:58 PM
Posted on December 15, 2008 21:58