I am trying to install JDK at office laptop but it says I need administrator privileges. I have only access to my own account at work.
How can I install the Java Dev
The method presented by Lawrence works but you can also use 7-zip and git bash to do the whole thing without much trouble.
NOTE: git bash comes with some gnu utils and unpack200 is one of them.
There is another small thing to do though. The src.zip file which comes with JDK is not present after the unpacking so to do that you can download the Linux tar.gz version and unpack it twice with 7-zip and then copy the missing src.zip file to the windows unpacked JDK.
Not having the src.zip is not a big deal but it will provide you easy access to some JDK sources in tools like Intellij IDEA.