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Asked: 2026-05-18T12:45:45+00:00

OK, what am I doing wrong, this is driving me nuts. I am trying

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OK, what am I doing wrong, this is driving me nuts.

I am trying to install the latest JDK (1.6.0_23). So, I downloaded it from Oracle’s awful site and then ran the installation. I installed it to C:\Java\jdk1.6.0_23

Then, I created a JAVA_HOME User Variable that pointed to C:\Java\jdk1.6.0_23. I then added a piece to the end of my Path environment variable that says %JAVA_HOME%\bin.

However, when I try to simply open a command prompt and run simple java commands, I am told it is not a recognizable command. I have to manually cd into the that bin directory to do anything.

Do I also need a Classpath variable that points to the JRE? I noticed there was a Classpath variable there previously that pointed to jre/lib/QTJava.zip, but I deleted it.

If you have the JDK installed and a JAVA_HOME variable setup, do I still need the JRE in the classpath? I am running Windows 7 and do all of my development in Eclipse.

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1 Answer

  1. Editorial Team

    Maybe the problem is because you set JAVA_HOME as a user variable, but trying to reference it from the PATH which is a system variable (or is it?). You cannot do this, because system variables are evaluated before user variables.

    There are two possible solutions:
    1. Set JAVA_HOME as a system variable instead
    2. Create a new user variable PATH and set %JAVA_HOME%\bin there. The user PATH and the system PATH variables will be concatenated at runtime automatically.

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