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Java Data Type Q&A » bit » 64 bit 2 

1. 64bit commapi    forums.oracle.com

Wasn't sure where to post this, so this will do. Does anyone know if/when Sun are going to release 64 bit versions of the serial comm APIs? 64 bit processing is becoming the standard, yet so much that we rely on seems to be VERY low on the migration list. Thanks _pixel

2. how to know which bit version (32 or 64 bit) of jdk    forums.oracle.com

hi, i have installed java in my system and i would like to know whether it is 32 bit platform or 64 bit plaform of jdk. by using java -version we can know the jdk version ,in the same way do we have any command to know the bit version ? could you please let me know how to do that ...

3. specification for 64 bit?    forums.oracle.com

Hi, I am curious about whether or not it is possible to write Java programs that take advantage of a 64 bit machine; namely, would it be possible to allocate more than 4GB of heap memory? If this is possible, then what happens when you try to allocate more than 4GB of heap memory in a 32 bit environment? I would ...

4. 64 bit platform    forums.oracle.com

Hi guys, I've a question, please help me to understand. I want to develop a commercial product in java (+java fx). I want to use netbeans. I've a win7 64 bit. Do you think is it useful to install jdk 64 bit? Are there any problems I could encounter in the future that I will not have with jdk 32 bit? ...

5. Why would this fail in 64-bit JRE but work in 32-bit JRE?    forums.oracle.com

I've got a Linux box with both a 32-bit and a 64-bit JRE installed. The code InetAddress host = InetAddress.getLocalHost(); run fine when I use the 32-bit JRE but throws a UnknownHostException when run against the 64-bit JRE. Everything else seems to run fine in the 64-bit Java; this is the only code we've found that is failing. I suspect I ...

6. 32 bit on a 64 bit    forums.oracle.com

Hi. I have a slight problem. I am on a 64 bit laptop, but I am trying to run something that requires a 32 bit jdk and 32 bit jre. I only have a 32 bit jdk installed, and this is set up properly. Now this was set in the CLASSPATH variable .;C:\Program Files (x86)\Java\jre6\lib\ext\QTJava.zip And there is also a QTJAVA ...

7. Java not working on Red hat 6 64bit    forums.oracle.com

8. JAVA Classes 32 bit Vs 64 bit    forums.oracle.com

Is there any difference in classes compiled in 32 bit and 64 bit JVM? I have a java application where all the java classes are compiled in 32 bit JVM. I changed the JRE to 64 bit to improve the performance but i can't see any performance improvement. If i compile my java code with 64 bit JVM will it improve ...

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