In C++, 'for' and 'while' have different uses

Loops in programming are used to calculate a piece of code multiple times. Here, we will see the difference between two types of loops in the program, For loop and While loop.

For Loop

The For loop is a repetitive control loop that allows the user to loop through a given block of code a specific number of times.

Syntax

for(initisation; condition; update){
   …code to be repeated
}

While loop

While loop is an entry control loop that allows the user to repeatedly execute a given statement until a given condition is true.

Grammar

while(condition){
   …code to be repeated
}

The difference between For loop and While loop

• For loop is a controlled loop, while while loop is a conditional loop

Case in which two loops in the code can provide different solutions

One situation is when the loop body contains a In while loop, continue statement before update statement, but in for loop The update statement already exists in initialization.

Example

Procedural example to illustrate how our solution works: (for loop)

#include<iostream>
using namespace std;

int main(){

   cout<<"Displaying for loop working with continue statement\n";
   for(int i = 0; i < 5; i++){
      if(i == 3)
      continue;
      cout<<"loop count "<<i<<endl;
   }
   return 0;
}

Output

Displaying for loop working with continue statement
loop count 0
loop count 1
loop count 2
loop count 4

Example

Program to demonstrate how our solution works: (while loop)

#include<iostream>
using namespace std;

int main(){

   cout<<"Displaying for loop working with continue statement";
   int i = 0;
   while(i < 5){
      if(i == 3)
      continue;
      cout<<"loop count "<<i<<endl;
      i++;
   }
   return 0;
}

Output

Displaying for loop working with continue statementloop count 0
loop count 1
loop count 2

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