What is procedures ?
Answer:
What is procedures ?
In the context of programming and procedural programming languages, a procedure is a set of instructions or a routine that performs a specific task or action. Procedures are also commonly known as functions or subroutines. They play a crucial role in procedural programming paradigms, where the focus is on organizing the code around procedures that manipulate data.
Here are some key characteristics of procedures:
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Modularity: Procedures allow for the modular organization of code. A large program can be broken down into smaller, more manageable procedures, making the code easier to understand and maintain.
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Reusability: Procedures can be reused throughout the program. Once a procedure is defined, it can be called or invoked from different parts of the program, promoting code reusability and reducing redundancy.
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Encapsulation: While not as strict as in object-oriented programming, procedures can encapsulate a set of related instructions and data. Local variables within a procedure are not typically accessible outside of that procedure, contributing to a degree of encapsulation.
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Parameter Passing: Procedures can take parameters or arguments, allowing them to receive input values. These parameters enable the procedure to operate on different sets of data, enhancing flexibility and generality.
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Return Values: Procedures can return values to the calling code, providing a way to communicate results or information back to the caller.
Here's a simple example in a procedural programming language like C:
#include // Procedure definition void greetUser(char name[]) { printf("Hello, %s!\n", name); } int main() { // Procedure invocation greetUser("John"); return 0; }
In this example, greetUser
is a procedure that takes a parameter (name
) and prints a greeting. The main
function calls this procedure with the argument "John."
Procedures are a fundamental building block in procedural programming, helping to structure code, promote code reuse, and improve the overall organization of a program.
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