Language Support
Languages that formally support the module concept include Ada, Algol, BlitzMax, COBOL, Component Pascal, D, Erlang, F, Fortran, Haskell, IBM/360 Assembler, IBM RPG, Java (packages are considered modules in the JLS), MATLAB, ML, Modula-2, Modula-3, Morpho, Oberon, NEWP, OCaml, Pascal, Perl, PL/I, Python, and Ruby. The IBM System i also uses Modules in CL, COBOL, and RPG when programming in the Integrated Language Environment (ILE). Modular programming can be performed even where the programming language lacks explicit syntactic features to support named modules.
Software tools can create modular code units from groups of components. Libraries of components built from separately compiled modules can be combined into a whole by using a linker.
Read more about this topic: Modular Programming
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