11 Facts About Class library

In computer science, a Class library is a collection of non-volatile resources used by computer programs, often for software development.

For instance, people who want to write a higher-level program can use a Class library to make system calls instead of implementing those system calls over and over again.

The distinguishing feature is that a Class library is organized for the purposes of being reused by independent programs or sub-programs, and the user only needs to know the interface and not the internal details of the Class library.

Behavior implemented by a Class library can be connected to the invoking program at different program lifecycle phases.

The Class library behavior is connected after the executable has been invoked to be executed, either as part of the process of starting the execution, or in the middle of execution.

Some programming languages use a feature called smart linking whereby the linker is aware of or integrated with the compiler, such that the linker knows how external references are used, and code in a Class library that is never actually used, even though internally referenced, can be discarded from the compiled application.

Some references in a program or Class library module are stored in a relative or symbolic form which cannot be resolved until all code and libraries are assigned final static addresses.

Any change to the Class library naming or layout of the file system will cause these systems to fail.

Class library libraries are the rough OOP equivalent of older types of code libraries.

Class library libraries are used to create instances, or objects with their characteristics set to specific values.

Additionally, such systems do not require the Class library to exist on the same machine, but can forward the requests over the network.