Declare loop control variable inside the for : for loop « Operators statements « C++ Tutorial






  1. C++ Tutorial
  2. Operators statements
  3. for loop
#include <iostream> 
using namespace std; 
  
int main() { 
  int sum = 0; 
  int fact = 1; 
 
  for(int i = 1; i <= 5; i++) {  
    sum += i;  // i is known throughout the loop 
    fact *= i; 
  } 
 
  // but, i is not known here. 
 
  cout << "Sum is " << sum << "\n"; 
  cout << "Factorial is " << fact; 
 
  return 0; 
}

Sum is 15
Factorial is 120"




3.15.for loop
3.15.1.Simplest for loop statement
3.15.2.A conversion table of feet to meters
3.15.3.Use multiple statements in for loops
3.15.4.Display the alphabet: use char to control for loop
3.15.5.A negatively running for loop
3.15.6.Loop until a random number that is greater than 20,000.
3.15.7.A for loop with no increment
3.15.8.The body of a for loop can be empty
3.15.9.Declare loop control variable inside the for
3.15.10.Use nested for loops to find factors of numbers between 2 and 100
3.15.11.For loops with null statements
3.15.12.empty for loop statement
3.15.13.Compound interest calculations with for
3.15.14.Floating point control in a for loop
3.15.15.Generating multiplication tables