C++ set () : Setting Field Width

                          C++ set () : Setting Field Width

Setw() : Setting field width using cout in C++ Programming:

• setw() is library function in c++.

• setw() is decleard inside #include<iomanip>.

• setw() will set field width.

• setw() sets the number if characters to be used as the field width for the next insertion operation.

Syntax :

  setw(num)

num is width to be set in order to insert next value.

Live Example 1 : Setting Width in C++ -

#include <iostream>

#include<iomanip>

using namespace std;

int main ()

{  

    cout <<setw (10);

    cout <<"Aradhana" << endl;

    return 0;

}

1. Now Length of String Aradhana is 8

2. We have set field width 10 so it well utilizes 7 fields

3. Reamining 3 fields are kept blank.

4. Default Justification : Left

Live Example 2 : Setting Width in  C++  :

#include <iostream>

#include <iomanip>

using namespace std;

int main()

{

   const int maxCount = 4;

   const int width = 6;

   int row;

   int coloum;

for (row=1; row<=10;row++)

{ 

    for (column = 1; column <= maxcount;  column++)

     {

         cout << set (width) << row *column;

      }

    cout << endl;

}

 return 0;

}

      

Output :

1       2        3        4   

2       4        6        8

3       6        9       12

4       8        12     16

5       10      15      20

6       12      18      24

7       14      21      28

8       16      24      32

9       18      27      36

10     20      30      40