C++/Language/For

for loop: A Multiplication Table

<source lang="cpp">

1. include<iostream>

using namespace std; int main(void) {

    cout << "A multiplication table:" << endl
         << "  1\t2\t3\t4\t5\t6\t7\t8\t9" << endl
         << "" << endl;
    for(int c = 1; c < 10; c++)
    {
         cout << c << "| ";
         for(int i = 1; i < 10; i++)
         {
         cout << i * c << "\t";
         }
         cout << endl;
    }
    return 0;

}

      </source>

For loop with int value type as the control

<source lang="cpp">

1. include <iostream>

using namespace std; int main() {

 int b, e, r;
 cout << "Enter base: ";
 cin >> b;
 cout << "Enter exponent: ";
 cin >> e;
 r = 1;
 for( ; e; e--) 
    r = r * b;
 
 cout << "Result: " << r;
 return 0;

}

      </source>

For statement

<source lang="cpp">

1. include <iostream>
2. include <iomanip>

using namespace std; int main() {

  double rate = 1.15;   
                        
  cout << fixed << setprecision(2);
  cout << "Euro             Dollar\n";
  for( int euro = 1; euro <= 5; ++euro)
    cout << "          " << euro
         << "          " << euro*rate << endl;
  return 0;

}

      </source>