Question

Discuss the uses of the three basic structures of programming (sequence, selection, and loops).

Provide an example of each.

Answer 1

Sequence: Sequence refers execution line be by line.In programming instruction executes line by line.One instruction followed by another instruction.

Example:

Selection:Selection refers to select particular code of block with respect to some condition.If condition is true then it executes that particular block of code.If condition is false then it skip that particular block of code.

Example:

Loop:Loop is very important part of program.It is required when we need to execute same instruction multiple time.Loop execute based on condition.If condition failed then it exit the loop.

Example: