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A Java program should run on any platform (hardware + operating system) for which a JVM (Java Virtual Machine) is installed. Unlike the "C" language, the size of data items in Java does not depend on the platform; for example, an int will always have a size of 32 bits, no matter how the underlying... Java Data Types - Javatpoint | Example: int a = 100000, int b = -200000 Java Data Types with primitive data types in java and non primitive data types including byte, short, int, long, float Data types specify the different sizes and values that can be stored in the variable. The long data type is a 64-bit two's complement integer. Its value-range lies between -9,223,372,036,854... On a 64-bit machine is the size of an int in Java 32... -… Providing an int size of 32 bit in java after compiling with 64 bit javac compiler and interpret using 64 bit jvm is a big disadvantage fromThe size of primitive data is part of the virtual machine specification, and doesn't change. What will change is the size of object references, from 32 bits to 64. How to declare 64 bit integer in java? | Forum
What is the size of an integer in Java? - Quora In Java, the Java Language Specification determines the representation of the certain data types. The order is: [code ]byte[/code] 8 bits, [code ]short[/code] 16 bits, [code ]int[/code] 32 bits, [code ]long[/code] 64 bits. [code] width ... what is the size of int in 64-bit machine? - C / C++ So you have to use sizeof to determine the type size of the implementation that was used to compile the program. For example, a 64-bit Windows machine can execute programs compied both as 32-bit and 64-bit. Java Object Size Calculations in 64-bit
So you have to use sizeof to determine the type size of the implementation that was used to compile the program. For example, a 64-bit Windows machine can execute programs compied both as 32-bit and 64-bit. Java Object Size Calculations in 64-bit This post is just some of my observations while trying to determine the heap space used by Java objects in a 64 bit environment. There are some good posts covering this topic, but none that addressed 64-bit, so I decided to put together my results. int on a 64-Bit machine - social.msdn.microsoft.com Correct - in unmanaged C++ an int is 64 bit on a 64 bit machine with a 64 bit compiler. The only reason I can see you wanting 64 bits in a managed situation is if you were trying to access over the 4 GB addressable memory limit (for which there are collections such as BigArray), or if you were interfacing with unmanaged code. Java Integer.MAX VALUE, MIN and SIZE - Dot Net Perls Java Integer.MAX VALUE, MIN and SIZE Examine the MIN_VALUE and MAX_VALUE final ints on Integer and other classes. Use loop boundaries. Integer, maximum. All numeric types have a maximum and minimum value they can represent. Only so many bytes are available—this limits numbers. Classes, final ints.
Java Object Overhead Introduction “A Java int is 32 bits in all JVMs and on all platforms, but this is only a language specification ... memory word on a 64-bit machine. The same goes for ... 7.4 Computer Memory The most fundamental unit of computer memory is the bit. ... The number of bytes and words used for an individual data value will vary depending on ... The integer 12,345 would take up 4 bytes (1 word), as would the integers 1 and 12,345,678. ..... to store them with full precision as 64-bit floating-point values, but only just. Representing Information - Introduction to Programming in Java
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