How to display single digit int as four digit C++ Programming

Hi all,

How to display single digit int as four digit in C++.For example, i want to display the digit 12 as 0012 and 8 as 0008.

Set the width to 4 and the fill character to '0'. This can be easily done by #include <iomanip> with:

Code:

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std::cout << std::setw(4) << std::setfill('0') << num << std::endl;

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By the way, we don't normally consider 12 to be a digit, unless you are expressing the number in base 13 or more.