Hopefully by now you’re familiar with…
java -version
… to determine what version of Java you have installed, but sometimes you may want to know if you’re running a 32 bit or 64 bit version because you get an error like this…
Can't load AMD 64-bit .dll on a IA 32-bit platform
… to find out just run this variation of the command…
java -d64 -version
… if you have a 64 bit version you’ll get typical output. If not, you’ll get an error similar to this…
This Java instance does not support a 64-bit JVM.
Please install the desired version.
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