Iteration or Loop in c++

Iteration means to execute a set of operations n number of times.

Iteration/Looping cause statements to be executed zero or more times, based on the conditions mentioned in the loop.
i.e. The body of the loop will execute the number of times the mentioned condition is tested true except the do while loop structure.

In c++ there are many 3 types of loop structure is defined.

1. for loop      

2. while loop

3. do while loop

for loop:

 

The for loop in C++ language is an entry-controlled   loop, where first of all initialization expression is evaluated then the condition is checked and if the condition is true then only the body or statements of the for loop are executed. 

Syntax of for loop

 

for (initialization; condition; increment / decrement)   

    { 

        Body of the loop (code)

    }

 

Note: initialization, condition and increment is separated by 

         " ; " and after closing bracket usually there should not

         be any semicolon (;) except some specific cases.       

  

For the examples of the for loop

1. for loop part 1

2. for loop part 2

3. for loop part 3

while loop:

The while loop is an entry-controlled loop in which first condition is checked and if the condition is true then the body of the loop is executed , after execution of the statements the condition is again checked and based on the outcome the loop executes. In this loop the initialization part is done just above the condition and the initialization in not part of the loop like a for loop.

 

initialization;
While (condition)
{
    //Statement block
    //Increment/Decrement operation
}

For the examples of the while loop

1. while loop part 1

2. while loop part 2

do while loop example coming soon......................