Need of structured programming

Answer 1

That basically refers to a programming language that has support for conditional statements (if), code repetition (while, for, ...), and subroutine or function calls. Most modern language have that. The term is also sometimes used for languages that do NOT work with OOP. Actually OOP includes the structured programming concepts mentioned above, but it includes a few other things, too.

Answer 2

Well structured programming is mainly used because

* it is easy to use a segment of code at various places as compared to rewrite the entire code again.

* it is easy to understand by other user except the programmer .

Answer 3

Without structured programming, all programming would be procedural, with a myriad jump and goto statements resulting in spaghetti code that is difficult to read and difficult to maintain. Structured programming, as its name suggests, adds structure to the programming, by adding structured loops, subroutines and procedure calls. By eliminating the need for jumps and goto statements, code is easier to read and easier to maintain. Machine code and assembly language are both examples of procedural languages, which results in spaghetti code even when compiled from a structured language.

Object-oriented programming extends structured programming by combining data and the methods that operate upon that data into a single, self-contained entity (an object) that completely looks after itself. There is no such thing as an object in the resultant machine code, however, like structured programming, objects are merely an aid to programming.