Download Java Jre 8 Update 181 (64-bit)
Rocki Stenger
I am having the same issue. I have never had 32-bit Java in my life and when I look up what Java version, it still says I have 64-bit, but Technic launcher says I only have 32-bit therefore I only get 1 Gb of ram. Please help!
I tried the above solution, I've checked the command prompt to see if I have any additional instances of Java installed, I've manually scoured through my files to make sure... I definitely only have 64-bit Java installed and yet Technic refuses to recognize it. Any helpful hints would be greatly appreciated.
for anyone coming to all these years-old threads looking to fix this problem, what helped me is updating whatever version of java i'm using WITHOUT uninstalling the previous version that technic was recognizing, opening the technic launcher, navigating to launcher options and changing which version of java to use. from here i was able to change my ram from 1gb to 4gb perfectly fine.
i have never had java 32bit installed. for whatever reason the technic launcher ran just fine with my 8.231 version of java 64bit, but upgrading to 8.381 made it unable to run. many people in other threads here and on reddit said to uninstall the previous version and keep the latest version, but the only thing that worked for me was having both versions and just switching which version to use within the technic launcher.
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.
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).
Hey guys, so I think I have been confusing myself lately with my java pushes through SCCM. Do I even need to be installing 64 bit versions of java? I think everyones uses iexplorer.exe*32 by default anyway right? I have never set anyone up specifically to use 64 bit IE and I dont think Firefox necessarily run in 64 bith either so am I waskign time trying to push java 32 bit to 32 bit machines and 64 to 64 bit machines? I think I may be messed up anyway becasue when I am pushing 64 to 64 bit machines they arent even using it unless they expicitly use IE 64 bit version correct? And I dont even present this to people. So Im thinking I should just have on basic 32 bit java push to 32 adn 64 bit. Whats the best advice you guys can give me on this?
I think this would be more of a per-environment type of scenario. If you know that all of the computers (or at least the ones you are managing) are not even using the 64-bit version of Internet Explorer, that is usually one of the biggest places that they would be introduced to it, so I would not install the 64-bit version of Java. I use a mixture of 32-bit and 64-bit Internet Explorer depending on the duties that I am responsible for at the time, so I have both 32-bit and 64-bit Java installed.
M P is right in that it really is up to if you are using any 64-bit browsers or have applications/custom applications that require it. Most scenaiors will just require the 32-bit Java, even on a 64-bit Windows.
Hmm, I didnt think about other stuff they may use other then IE that might utilize java on their machines. The reason I got mixed up was that I was only installing 64bit java on 64bit machines and the java control panel still said 6v31 or something, then I snapped.
The weird thing is the only reason I even looked at the java control panel is because with this last push of 7v17, whoever had 6v31 installed would get a prompt in IE to make changes per 6v31, which never happned before and I thought it was because this past push I pused 32 java to 32 and 64 bit machines.
I guess I just need to get a best practice going. It seems like pushing 7v17 didnt uninstall or overwrite 6v31 and it caused that version to do this pop up. So I was going to add 6v31 to my bat file that uninstalls java (newest version) before it installs the newest version.
For the IoT Gateway to run, KEPServerEX requires a working 32-bit Java JRE or full JDK installation version 7 or higher. At this time, a 64-bit JRE or JDK is not supported. I Just wanted to know if we can use AdoptOpenJRE instead of 32-bit java JRE?
The Java programming language is statically-typed, which means that all variables must first be declared before they can be used. This involves stating the variable's type and name, as you've already seen:
Doing so tells your program that a field named "gear" exists, holds numerical data, and has an initial value of "1". A variable's data type determines the values it may contain, plus the operations that may be performed on it. In addition to int, the Java programming language supports seven other primitive data types. A primitive type is predefined by the language and is named by a reserved keyword. Primitive values do not share state with other primitive values. The eight primitive data types supported by the Java programming language are:
byte: The byte data type is an 8-bit signed two's complement integer. It has a minimum value of -128 and a maximum value of 127 (inclusive). The byte data type can be useful for saving memory in large arrays, where the memory savings actually matters. They can also be used in place of int where their limits help to clarify your code; the fact that a variable's range is limited can serve as a form of documentation.
int: By default, the int data type is a 32-bit signed two's complement integer, which has a minimum value of -231 and a maximum value of 231-1. In Java SE 8 and later, you can use the int data type to represent an unsigned 32-bit integer, which has a minimum value of 0 and a maximum value of 232-1. Use the Integer class to use int data type as an unsigned integer. See the section The Number Classes for more information. Static methods like compareUnsigned, divideUnsigned etc have been added to the Integer class to support the arithmetic operations for unsigned integers.
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.
boolean: The boolean data type has only two possible values: true and false. Use this data type for simple flags that track true/false conditions. This data type represents one bit of information, but its "size" isn't something that's precisely defined.
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
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