Generating multiplication tables : for loop « Operators statements « C++ Tutorial






  1. C++ Tutorial
  2. Operators statements
  3. for loop
#include <iostream>
#include <iomanip>
#include <cctype>
using std::cout;
using std::cin;
using std::endl;
using std::setw;

int main() {
  int table = 11;
  const int table_min = 2;                      
  const int table_max = 12;                     

  // Create the top line of the table
  cout << "     |";
  for(int i = 1 ; i <= table ; i++)
    cout << " " << setw(3) << i << " |";
  cout << endl; 
  
  // Create the separator row
  for(int i = 0 ; i <= table ; i++)
    cout << "------";
  cout << endl;
  
  for(int i = 1 ; i <= table ; i++) {   
    cout << " " << setw(3) << i << " |";
  
    // Output the values in a row
    for(int j = 1 ; j <= table ; j++)
      cout << " " << setw(3) << i*j << " |"; 
    cout << endl;                     
  }
  
  
  return 0;
}

|   1 |   2 |   3 |   4 |   5 |   6 |   7 |   8 |   9 |  10 |  11 |
------------------------------------------------------------------------
   1 |   1 |   2 |   3 |   4 |   5 |   6 |   7 |   8 |   9 |  10 |  11 |
   2 |   2 |   4 |   6 |   8 |  10 |  12 |  14 |  16 |  18 |  20 |  22 |
   3 |   3 |   6 |   9 |  12 |  15 |  18 |  21 |  24 |  27 |  30 |  33 |
   4 |   4 |   8 |  12 |  16 |  20 |  24 |  28 |  32 |  36 |  40 |  44 |
   5 |   5 |  10 |  15 |  20 |  25 |  30 |  35 |  40 |  45 |  50 |  55 |
   6 |   6 |  12 |  18 |  24 |  30 |  36 |  42 |  48 |  54 |  60 |  66 |
   7 |   7 |  14 |  21 |  28 |  35 |  42 |  49 |  56 |  63 |  70 |  77 |
   8 |   8 |  16 |  24 |  32 |  40 |  48 |  56 |  64 |  72 |  80 |  88 |
   9 |   9 |  18 |  27 |  36 |  45 |  54 |  63 |  72 |  81 |  90 |  99 |
  10 |  10 |  20 |  30 |  40 |  50 |  60 |  70 |  80 |  90 | 100 | 110 |
  11 |  11 |  22 |  33 |  44 |  55 |  66 |  77 |  88 |  99 | 110 | 121 |




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