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JDK has a compiler that converts your Java code to bytecode and bytecode is platform-independent. JVM can read this bytecode and using an interpreter convert them to OS-specific instructions which vary based on your OS. All JDK, JRE, and JVM are platform-dependent. But JAVA is platform-independent because bytecode is platform-independent.
Jul 25, 2024 · The meaning of Java platform-independent is that the Java compiled code (byte code) can run on all operating systems. A program is written in a language that is human-readable. It may contain words, phrases, etc. which the machine does not understand. For the source code to be understood by the machine, it needs to be in a language understood ...
- Memory Areas in The JVM class/method Area
- Heap
- Language Stack For JVM
- PC Registration System
Method names, class names, and variable names are among the data it stores. It serves as a centralized resource for all the methods and variables in a class. It functions as a memory that holds necessary data to complete the task. It is shared across all the threads of the computer. The execution will determine if it is a fixed or expandable size.
The Heap keeps track of all the data that is kept in its area. It keeps the data in a specific amount that won't be known until the programme has been executed. It is utilized all through the programme. It is utilized for the allocation of dynamic memory. In the heap region, new items are developed.
When a function is executed, it keeps the current data in blocks, also known as frames or stack-frames maintain local variables and are heavily involved in thread management.
The address of the instruction that is currently being run is stored there. It is beneficial when there are multiple threads being executed.
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Sep 1, 2023 · Conclusion. Java’s platform independence is a result of its bytecode compilation and the Java Virtual Machine. The JVM abstracts away the underlying hardware and operating system, allowing Java code to run on any platform with the appropriate JVM implementation. Additionally, the rich standard library and third-party libraries help developers ...
This bytecode is platform-independent, meaning it’s a generic set of instructions untied to any specific operating system. Java Virtual Machine (JVM): Each platform – Windows, macOS, Linux – runs its own JVM. The JVM acts as an interpreter, translating the bytecode into machine code understood by the specific system.
JRE (Java Runtime Environment) is a software package that provides Java class libraries, Java Virtual Machine (JVM), and other components that are required to run Java applications. JRE is the superset of JVM. Java Runtime Environment. If you need to run Java programs, but not develop them, JRE is what you need.
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Sep 7, 2023 · Because of the platform-independent, Java gets an important feature called portability. Each system has its specific JVM that is installed automatically when the Java Development kit (JDK) is installed, and it is the JVM that reads the Byte code or .class file. Note: Now, we know that Java is platform-independent, but JVM is platform dependent.
