C printf relearning notes

C printf tutorial - CodingUnit  

http://www.codingunit.com/printf-format-specifiers-format-conversions-and-formatted-output

%i or %d int
%c char
%f float (see also the note below)
%s string

#include<stdio.h>
main()
{
int a,b;
float c,d;

a = 15;
b = a / 2;
printf("%d\n",b);
printf("%3d\n",b);
printf("%03d\n",b);

c = 15.3;
d = c / 3;
printf("%3.2f\n",d);
}

Output of the source above:

7
   7
007
5.10

#include<stdio.h>
main()
{
int Fahrenheit;

for (Fahrenheit = 0; Fahrenheit <= 300; Fahrenheit = Fahrenheit + 20)
printf("%3d %06.3f\n", Fahrenheit, (5.0/9.0)*(Fahrenheit-32));
}

Output of the source above:

  0 -17.778
 20 -6.667
 40 04.444
 60 15.556
 80 26.667
100 37.778
120 48.889

#include<stdio.h>
main()
{
printf("The color: %s\n", "blue");
printf("First number: %d\n", 12345);
printf("Second number: %04d\n", 25);
printf("Third number: %i\n", 1234);
printf("Float number: %3.2f\n", 3.14159);
printf("Hexadecimal: %x\n", 255);
printf("Octal: %o\n", 255);
printf("Unsigned value: %u\n", 150);
printf("Just print the percentage sign %%\n", 10);
}

Output of the source example:

The color: blue
First number: 12345
Second number: 0025
Third number: 1234
Float number: 3.14
Hexadecimal: ff
Octal: 377
Unsigned value: 150
Just print the percentage sign %


#include<stdio.h>
main()
{
printf(":%s:\n", "Hello, world!");
printf(":%15s:\n", "Hello, world!");
printf(":%.10s:\n", "Hello, world!");
printf(":%-10s:\n", "Hello, world!");
printf(":%-15s:\n", "Hello, world!");
printf(":%.15s:\n", "Hello, world!");
printf(":%15.10s:\n", "Hello, world!");
printf(":%-15.10s:\n", "Hello, world!");
}

The output of the example above:

:Hello, world!:
:  Hello, world!:
:Hello, wor:
:Hello, world!:
:Hello, world!  :
:Hello, world!:
:     Hello, wor:
:Hello, wor     :


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