Programming Example
Some special Formatting %20s %-20s
Some special Formatting %20s %-20s
#include <stdio.h>
int main()
{
char str[] = "atnylaBrothers";
printf("%20s\n", str);
printf("%-20s\n", str);
printf("%20.5s\n", str);
printf("%-20.5s\n", str);
return 0;
} atnylaBrothers
atnylaBrothers
atnyl
atnyl
Press any key to continue . . .
The given code is a C program that demonstrates the use of different format specifiers with the printf() function to print a string str in various formats.
Here's how it works:
#include line includes the standard input/output library in the program.main() function is the entry point of the program.str is declared and initialized with the string "atnylaBrothers".printf() statements are used to display the contents of str in different formats.
%20s format specifier prints the string with a minimum field width of 20 characters, right-justified.%-20s format specifier prints the string with a minimum field width of 20 characters, left-justified.%20.5s format specifier prints the string with a minimum field width of 20 characters and a precision of 5 characters, right-justified.%-20.5s format specifier prints the string with a minimum field width of 20 characters and a precision of 5 characters, left-justified.\n character is used to insert a newline after each output is printed.return 0; statement terminates the program and returns 0 to the operating system indicating that the program executed successfully.First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.