The printf function with %s format is used to display the strings on the screen.
For example, the below statement displays entire string:
printf(“%s”, name);
We can also specify the accuracy with which character array (string) is displayed.
For example, if you want to display first 5 characters from a field width of 15 characters,
you have to write as: printf(“%15.5s”, name);
If you include minus sign in the format (e.g. % –10.5s), the string will be printed left justified.
printf(“% -10.5s”, name);
Write a program to display the string “UNIX” in the following format.
U
UN
UNI
UNIX
UNIX
UNI
UN
U
# include <stdio.h>
main()
{
int x, y;
static char string[ ] = “UNIX”;
printf(“\n”);
for( x=0; x<4; x++)
{
y = x + 1;
/* reserves 4 character of space on to the monitor and minus sign is for left justified*/
printf(“%-4.*s \n”, y, string);
/* and for every loop the * is replaced by value of y */
/* y value starts with 1 and for every time it is incremented by 1 until it reaches to 4*/
}
for( x=3; x>=0; x- -)
{
y = x + 1;
printf(“%-4.*s \n”, y, string);
/* y value starts with 4 and for every time it is decrements by 1 until it reaches to 1*/
}
}
OUTPUT
U
UN
UNI
UNIX
UNIX
UNI
UN
U