printfexamples.c

#include <stdio.h>

int main() {

int i; // Number to print.
double f; // Number to print

printf("Enter an integer (use either + or -): ");
scanf ("%d", &i);
printf("This is the integer...................|%d|\n", i);
printf("This is the integer in octal..........|%o|\n", i);
printf("Octal with leading zero...............|%#o|\n", i);
printf("This is the integer in hex............|%x| or |%X|\n", i, i);
printf("Hex with leading 0x...................|%#x| or |%#X|\n", i, i);
printf("Forcing a plus or minus sign..........|%+d|\n", i);
printf("Include space before + numbers........|% d|\n", i);
printf("Field width of 3......................|%3d|\n", i);
printf("Field width of 5......................|%5d|\n", i);
printf("Field width of 7......................|%7d|\n", i);
printf("Same as above with left justification.|%-7d|\n", i);
printf("Field width of 7 with zero fill.......|%07d|\n", i);
printf("At least 3 digits.....................|%.3d|\n", i);
printf("At least 5 digits.....................|%.5d|\n", i);
printf("Field width of 10, at least 7 digits..|%10.7d|\n", i);

printf("\nEnter a floating point number: ");
scanf ("%lf", &f);
printf("This is the number....................|%f|\n", f);
printf("Forcing a plus or minus sign..........|%+f|\n", f);
printf("Field width of 20.....................|%20f|\n", f);
printf("0 decimal places......................|%.0f|\n", f);
printf("0 decimal places forcing decimal......|%#.0f|\n", f);
printf("3 decimal places......................|%.3f|\n", f);
printf("20 decimal places.....................|%.20f|\n", f);
printf("Field width of 20, 3 decimal places...|%20.3f|\n", f);
printf("\nHere is the number in e format:\n");
printf("3 decimal places......................|%.3e|\n", f);
printf("5 decimal places & big 'e'............|%.5E|\n", f);
printf("\nHere is the number in g format:\n");
printf("No special requests...................|%g|\n", f);
printf("Maximum of 1 significant figure.......|%.1g|\n", f);
printf("Maximum of 4 significant figures......|%.4g|\n", f);

return 0;
}