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Windows - Change Java version (JDK) per command line via batch file
@echo off
setlocal
REM Check for elevated priviledges
net session >nul 2>&1
IF %ERRORLEVEL% NEQ 0 GOTO ELEVATE
REM Check if any parameters have been given.
if "%*"=="" (
echo No version parameter given.
echo Usage: Use the command 'jdk version', eg. 'jdk 1.6'
echo Possible options: 6, 7, 8, 11, 17
echo ---------
echo Choose Option now:
echo 1. for JDK 6
echo 2. for JDK 7
echo 3. for JDK 8
echo 4. for JDK 11
echo 5. for JDK 17
CHOICE /C 12345 /M "Enter your choice:"
:: Note - list ERRORLEVELS in decreasing order
IF ERRORLEVEL 5 (
set PARAM=17
)
IF ERRORLEVEL 4 (
set PARAM=11
)
IF ERRORLEVEL 3 (
set PARAM=8
)
IF ERRORLEVEL 2 (
set PARAM=7
)
IF ERRORLEVEL 1 (
set PARAM=6
)
) else (
set PARAM=%1
)
REM echo PARAM = %PARAM%
if "%PARAM%"=="6" (
set JAVA_VERSION=jdk1.6.0_45
) else (
if "%PARAM%"=="7" (
set JAVA_VERSION=jdk1.7.0_79
) else (
if "%PARAM%"=="8" (
set JAVA_VERSION=jdk-1.8
) else (
if "%PARAM%"=="11" (
set JAVA_VERSION=jdk-11
) else (
if "%PARAM%"=="17" (
set JAVA_VERSION=jdk-17.0.2
) else (
echo ERROR: Version is not set according to available options - see options below
echo Usage: Use the command "jdk version", eg. "jdk 1.6"
echo Possible options: 6, 7, 8, 11, 17
exit /b
)))))
echo ----------------------------
echo JAVA-Version: %JAVA_VERSION%
echo ----------------------------
echo Trying to remove current JAVA path from PATH
echo (Using tool "pathed" - http://p-nand-q.com/download/gtools/pathed.html)
pathed /REMOVE "%JDK_HOME%\bin" /MACHINE
echo ----------------------------
echo setting PATH unsing "pathed"
pathed /APPEND "C:\Program Files\Java\%JAVA_VERSION%\bin" /MACHINE
echo ----------------------------
echo Removing duplicates from PATH
pathed /SLIM /MACHINE
echo ----------------------------
echo Setting JAVA_HOME
set JAVA_HOME="C:\Program Files\Java\%JAVA_VERSION%"
setx JAVA_HOME "C:\Program Files\Java\%JAVA_VERSION%" /m
echo ----------------------------
echo Setting JDK_HOME
set JDK_HOME="C:\Program Files\Java\%JAVA_VERSION%"
setx JDK_HOME "C:\Program Files\Java\%JAVA_VERSION%" /m
echo Display java version
java -version
SLEEP 5
@ECHO on
EXIT /B 0
:ELEVATE
ECHO Elevated privileges are required to run script.
ECHO Aborting
SLEEP 5
@ECHO on
EXIT /B 0
Windows - Change Java version per batch command
Put these batch files in one of the PATH folders.
I usually put the %userprofile% in the path and place the BAT files there.
To change the JAVA version, type e.g."jdk 1.6".
@rwunsch
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Author

rwunsch commented Apr 5, 2022

Hey @Aquaotter ,
What do you mean?

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