Java 7 Download 64-bit Zip
Dibe Naro
I'm not sure where to post this because r/java says to come here, but now that i'm here it looks more like this is for programming. Anyway, help would be greatly appreciated, my problem is simple, i go to the java download page ( ) and I try downloading both online and offline versions, regardless of what I pick, 32 bit is what ends up getting installed, initially when i tried i used chrome, but the internet told me that it was not a good idea, so i uninstalled and tried reinstalling using IE (windows 10) then tried again in firefox, to no avail! I hav tried reading many posts the general concensus is that people dont think that the questioners have the correct OS (I do). Thanks to anybody who even read this question!
I wanted to run java programs on a 64 bit Windows 7 computer and I have a 64 bit Java VM. How do I launch the jar files via command line ? It seems that 64 bit Windows 7 have a seperation between 32 bits and 64 bits programs.
Some jar files have information in them allowing to be executed with the -jar switch. If that information is not present you must use the -cp myjar.jar my.main.method.class argument to java.exe to execute your program.
Update: it seems that the actual (at the time of this edit) version of 64-bit Pi OS is getting packages from Beware that on a 32-bit Pi OS, adding Debian repo as a source and doing an upgrade is known to ruin the system (at least it was the case last time I tried).
Hey everyone, I need to use Java 64-bit in Mac OS X Lion and I thought it defaulted to using the 64-bit JDK until I ran Minecraft which stated I was running the 32-bit JDK and if I deselect the 32-bit entry in Java Preferences it deselects the 64-bit entry as well. Does anyone know of a way to make OS X default to the 64-bit version, I also make use of the 64-bit JDK on Windows to ensure my Java applications in NetBeans run correctly on either flavour.
I did try using the OpenJDK 7 and downloaded the 64-bit runtime and installed it correctly and confirmed it was running but when running the Minecraft.app I was greeted with a message saying no compatible JDK 1.5+ was installed and when using the Terminal, it was failing to logon correctly, but was working fine in the standard JDK but like I said, I'm stuck with 32-bit in that case.
There isn't really a default java, but you can set the order for your preferred java. Go to the Java Preferences (/Applications/Utilities/Java Preferences) and on the General tab just make sure the 64-bit java is first (you can click and drag them to change the order).
You might also try disabling the 32-bit java by unchecking the "ON" check box next to it and see if Minecraft will run and with which Java (if shouldn't be able to launch the 32-bit one if it is off).
So as you see, the file is there, but also not there at the same time. Which is hyper confusing. I next thought that maybe I didn't actually have a 64-bit version of Ubuntu, but I checked and (if I'm reading everything correctly) it looks like I do have 64-bit ubuntu:
The current java 32 bit update provided by BigFix has some relevance in it to determine if a workstation is 64 bit. If a workstation is 64 bit will will return false for the applicability of the Fixlet.
Has anyone out there have experienece updating java 32 bit to the latest version using BigFix? I created a custom copy of the fixlet provided by BigFix and removed relevance clause #4 which is looks at a key in the registry to determine if the OS is 64bit. The custom fixlet is now relevant on a Windows 7 64 bit with Java 32 bit installed but the update fails. It appears like there is a problem extracting the installer.
I have been working on this issue for a while, and your investigation does reflect some of my findings. It does have something to do with how BigFix is deploying Java 32-bit on 64-bit OS. At the same time, it can be how Java packages their updates, as explained in
I have a fixlet working to update 32bit java on 64bit windows 7. It uses a combination of hacks to work, so use at your own risk, but for us we simply have to get this to work, so here it is for those interested (attached)
Basically it creates (or clears and recreates to be sure its correct) an NTFS directory junction between the pseudo system32 directory 32bit apps see, and the real one, for the system profile app data related to java. In addition I find I have to specifically run the java installer from a 32bit cmd.exe. Action sequence looks like this:
So, do I really need a 32-bit Java version next to my 64-bit Java version? Is that even possible? Do I need to set up something else? I need the 64-bit version for other apps, I cannot replace it with a 32-bit version (provided that's even possible with 64-bit Win 7).
Well that was easy (does that sound sarcastic?). I installed the 32-bit Java runtime environment, so now I have two JREs: 32-bit one in C:\Program Files (x86)\Java\jre1.8.0_73 and 64-bit one in C:\Program Files\Java\jre1.8.0_73
And I didn't even have to change JAVA_HOME to get the data loader working, it just works now. Automagically. Not even PATH was changed by the installer. java -version still reports the 64-bit version, but somehow data loader can find the 32-bit version (I guess because it was installed in its default folder).
Running 64 bit Firefox 45.0.1 on Windows 7. Installed 64 bit Java jre-8u77-windows-i586 several times, but it doesn't show up on the Plugins list. Yes, I've restarted Firefox. I also tried installing it with Firefox shut down. I made sure the Java installation was going to the Program Files directory vs. Program Files (86) (at this point I think it's gone to both). The Java installer claims it completed successfully. The "Enable Java content In the browser" box on the Java Control Panel is checked. I considered falling back to 32 bit, but java.com only offers the 64 bit version.
Note on 32-bit versus 64-bit versions:
You only need the 64-bit version of the SAP Java Connector if you are using a 64-bit Java VM. If you have to use a 32-bit Java VM on a 64-bit platform, download and use the 32-bit version of JCo. The 64-bit variant should always be preferred on 64-bit platforms.
Some JVMs offer both modes: 32-bit as well as 64-bit. In this case you need to start the JVM with an additional start-up parameter to specify the mode. Usually these are options -d32 and -d64; please consult the JVM documentation for further details.
long: The long data type is a 64-bit two's complement integer. The signed long has a minimum value of -263 and a maximum value of 263-1. In Java SE 8 and later, you can use the long data type to represent an unsigned 64-bit long, which has a minimum value of 0 and a maximum value of 264-1. Use this data type when you need a range of values wider than those provided by int. The Long class also contains methods like compareUnsigned, divideUnsigned etc to support arithmetic operations for unsigned long.
float: The float data type is a single-precision 32-bit IEEE 754 floating point. Its range of values is beyond the scope of this discussion, but is specified in theFloating-Point Types, Formats, and Values section of the Java Language Specification. As with the recommendations for byte and short, use a float (instead of double) if you need to save memory in large arrays of floating point numbers. This data type should never be used for precise values, such as currency. For that, you will need to use the java.math.BigDecimal class instead. Numbers and Strings covers BigDecimal and other useful classes provided by the Java platform.
double: The double data type is a double-precision 64-bit IEEE 754 floating point. Its range of values is beyond the scope of this discussion, but is specified in theFloating-Point Types, Formats, and Values section of the Java Language Specification. For decimal values, this data type is generally the default choice. As mentioned above, this data type should never be used for precise values, such as currency.
In addition to the eight primitive data types listed above, the Java programming language also provides special support for character strings via the java.lang.String class. Enclosing your character string within double quotes will automatically create a new String object; for example, String s = "this is a string";. String objects are immutable, which means that once created, their values cannot be changed. The String class is not technically a primitive data type, but considering the special support given to it by the language, you'll probably tend to think of it as such. You'll learn more about the String class in Simple Data Objects
The floating point types (float and double) can also be expressed using E or e (for scientific notation), F or f (32-bit float literal) and D or d (64-bit double literal; this is the default and by convention is omitted).
@Deleted We are happy to confirm that MSFT Edge is indeed a 64-bit browser. (To make a long story short, there is an issue in the Chromium code that can make it appear like it's 32-bit in the Program Files folder.)
To enable this interoperability support, you can configure the IMS dependent regions to establish a persistent 31-bit LE for running the 31-bit COBOL code and a new 64-bit LE for running the 64-bit Java code in a 64-bit JVM.
This first tutorial, Modernizing an IMS COBOL application with 64-bit Java: a tutorial, is for the scenario where the main IMS application is written in COBOL and it calls a Java method.
The second tutorial, Leveraging COBOL business logic from 64-bit Java: a tutorial, is for the scenario where the main IMS application is written in Java and it calls a native method written in COBOL, which serves as a thin wrapper to then call procedural COBOL.
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