Loops in C++

Loops in C++

Loops in C++ used to execute a block of code or statements. C++ provides the following types of loop to handle the looping requirements in program.

In all programming language, loops are used to execute a block of statements repeatedly till a satisfied the particular condition.

There are 3 types of loops in C++ they are follows

• • for loop
  • while loop
  • do…while loop

1. For loop in C++

For loop is used to execute a set of statement repeatedly until satisfied the particular condition and it is also used to iterate a part of the program several times. 

Syntax of for-loop in C++

for(initialization; condition; incr/decr){    
//body of loop    
}

Program of for loop in C++

#include <iostream>  
using namespace std;  
int main() {  
         for(int i=1;i<=10;i++){      
            cout<<i <<"\n";      
          }       
    }

Output

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2. While loop in C++

The while loop is an empty-controlled loop and it through a block of code as long as a specified condition is true

Syntax of while loop in C++

while(condition){    
//code to be executed    
}    

#include <iostream>  
using namespace std;  
int main() {         
 int i=1;      
         while(i<=10)   
       {      
            cout<<i <<"\n";    
            i++;  
          }       
    }  

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do{    
//code to be executed    
}while(condition);  

#include <iostream>  
using namespace std;  
int main() {  
     int i = 1;    
          do{    
              cout<<i<<"\n";    
              i++;    
          } while (i <= 10) ;    
}

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