In a nutshell, in object oriented programming objects of a program interact by sending
messages to each other.
1.5 DISADVANTAGE OF CONVENTIONAL PROGRAMMING
Traditional programming languages such as COBOL, FORTRAN, C etc. are commonly known
as procedure oriented languages. The program written in these languages consists of a sequence
of instructions that tells the compiler or interpreter to perform a given task. Numerous functions
are initiated by the user to perform a task. When a program code is large, it becomes inconve-
nient to manage it. To overcome this problem, procedures or subroutines were adopted ...
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