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java dev enviroment

 
Greenhorn
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I just installed java 1.4.0 on XP and the java runtime engine worked automatically. I didn't see anything in the path under the enviroment variables. How does this work now?
I need to use multiple jre's. How do I switch between them without typing out the path all the time.
 
Bartender
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I use batch files for this purpose, and set up my environment variables and classpath as needed for a particular JDK version.
 
Sheriff
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On my Windows XP and JDK/JRE 1.3.1_02 installation, "java.exe" was installed to the "JDK\bin" directory, the "WinXP\System32" directory, and the "Program Files\JavaSoft\JRE\1.3.1_02\bin" directory. No changes were made to my path or environment variable settings. I don't know if that's telling you anything you hadn't already figured out...
 
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