change javac (compiler) & java (runtime) versions in command line

Asked Oct 20 '13 at 23:48

Active Oct 20 '13 at 23:48

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i have installed JDK 7 on my windows 7 machine...

now in command prompt when i do

"javac -version" returns 1.7.0_25

"java -version" returns 1.7.0_25

now my requirement is that i want to compile & run my java programs as 1.6, without installing JDK 6 & without manually changing ENVIRONMENTAL VARIABLES PATH by going to MYCOMPUTER etc..

i want to change compile time & runtime versions in the command prompt itself. HOW???

asked Oct 20 '13 at 23:48

sandeepgoud

Change the `path` environment variable to point to the installation locations of the JDK and JRE – MadProgrammer Oct 20 '13 at 23:49
i want to change in the command prompt itself... and it is possible i have done this 1 yr before... – sandeepgoud Oct 20 '13 at 23:51
Under `Windows`, `set path=\the\path\to\the\jdk\bin;the\path\to\the\jre\bin;%path%` – MadProgrammer Oct 21 '13 at 00:00
MadProgrammer... no no no... in command prompt, i just need to type... the version number and get it done... trust me it is possible... but i forgot.. – sandeepgoud Oct 21 '13 at 00:09
Yes, changing the `path` environment variable at the command prompt will change it for FOR THAT SESSION, not the system as a whole... – MadProgrammer Oct 21 '13 at 00:11
Your other choice is to set up a series of symbolic links, allowing you to specify a single path and change the links as you need, personally, I think setting the `path` is simpler...but that's just me – MadProgrammer Oct 21 '13 at 00:12
yes i want for that session only... not permanent but how??? – sandeepgoud Oct 21 '13 at 00:25
Just as I said. Try it, see what happens ;) – MadProgrammer Oct 21 '13 at 00:26
Possible duplicate of [Target different version of JRE](https://stackoverflow.com/questions/23627606/target-different-version-of-jre) – Jaco Ackermann May 28 '19 at 10:18

change javac (compiler) & java (runtime) versions in command line

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