Question

Provide explanation about Iterations. Give examples and write a program.

Answer 1

Iterations are simply said to be executing some set of statements continuously for 'n' number of times or the condition is encountered.

Cycle of instructions are performed in a repeated manner called 'loops'.

There are two types of iteration:

1)Count controlled iterations: This iteration is used for repeat the statements or steps a specific number of times. In this iteration you already know the how many iterations it takes.

for example, FOR loop. For loop is comes under this count controlled iterations.

example in python language:

n=5

for i in range(0,n):

       print(i)

output: 0,1,2,3,4

2)Condition controlled iterations: This iteration is used for repeating the statements continuously until the condition is satisfied. In this case the number of iterations are unknown. It follows the condition is true or false. If true, statement is executed otherwise not executed.

for example, While loops comes under this condition controlled iterations.

examples in python language:

n=6

a=1

while(a<n):

       print(a)

       a=a+1

output: 1 2 3 4 5