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Static Keyword In Java
When it is comes to software development, it is considered a good thing to be a lazy programmer. If a programmer reuses code that he or someone else has written, he can spend more time working code for new functions. Developers are able to incorporate existing code libraries with either java static or java dynamic linking. Java uses dynamic linking by default but programmers are able to link their own files statistically. This article is going to give an overview of software libraries, static linking, dynamic linking and JVM linking.
Software libraries that programs depends on can either contain code that performs functions specific to particular categories of software or for major systems like 3D graphics software. The way in which library files are linked to the program files will depend on how common the library is and the installation processes for individual operating systems. Java linking can be static or dynamic. Java static linking is where the program’s executable includes all the library code it needs. Java dynamic linking on the other hand is where the program looks for library files on the machine executing it.
This is the process in which the compiler puts the binary code for every file on which the application draws in the executable it produces. It then produces a larger executable file than the dynamic linked program and ensures that the program will run effectively on the machine of end user. Most programmers use this technique for software libraries that are uncommon and unlikely to be installed on the average computer. Since java is the language that is commonly used by programmers, therefore, java static linking is frequently used.
Understand that all forms of linking is done by a programming language compiler. Dynamic linking is when a compiler tells the application where to find the necessary library files in particular OS. The application cannot run properly if the library file is not where the compiler told the program to look. This type of linking requires library files to follow a uniform process when they are being installed in the user machine. The files should also end up within a specific directory path. Without being able to predict, programmers are unable to tell dynamically linked programs where to find library files.
JVM linking is used by java to execute its byte code. This includes all the files in java standard library. Therefore, java compiler automatically uses dynamic linking for any standard library file. Java programmers sometimes rely on older or customized versions of standard library files. For instance, when a programmer writes the text “MyLibrary extends Standard Library” at the top of the library file, then “MyLibrary” is the file title that she wants to use for her library and “Standard Library” is the library life that she wants to replace. Then the compiler will statically link the developer’s version of the library file to the java application.Therefore, all the three types of linking are very important in java programming.