Printf function in c
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Printf function in c
Explain printf() functionPrinting a text message on-screen is simple. Call the printf() function and pass the desired message enclosed in double quotation marks. For example, to display “welcome to c” on-screen, we write
printf("welcome to c");In addition to text messages, however, we want to display the value of program variables. For that we want to display the value of the numeric variable x on-screen, along with some identifying text. We could use the printf() function as follows:
printf("The value of x is %d", x);The resulting screen display ( the value of x is 10)
The value of x is 10In the above example, two arguments are used in printf(). The first argument is in the double quotation marks and is known as format string. The second argument contain the name of the variable (x) which print the value of variable.
The most commonly needed conversion specifiers.
Specifier Meaning Types
%c Single character char
%d Signed decimal int, short
%ld Signed long decimal long
%f Decimal floating-point float, double
%s Character string char arrays
%u Unsigned decimal integer unsigned int,
%lu Unsigned long decimal integer unsigned long