fmt.Printf() Function in Golang With Examples

In Go language, fmt package implements formatted I/O with functions analogous to C's printf() and scanf() function. The fmt.Printf() function in Go language formats according to a format specifier and writes to standard output. Moreover, this function is defined under the fmt package. Here, you need to import the "fmt" package in order to use these functions.

Syntax: 

func Printf(format string, a ...interface{}) (n int, err error)

Parameters: This function accepts two parameters which are illustrated below: 

• format string: This contains some strings along with some verbs.
• a ...interface{}: This contains specified constant variables.

Return Value: It returns the number of bytes written and any write error encountered.

Conversion Characters:

Example 1:

Output: 

GeeksforGeeks is a CS portal.

Example 2:

Output: 

5 + 10 = 15

Example 3:

Output:

The string is Geeksforgeeks 
The decimal value is 21 
The floating point is 7.786 
The binary value of num3 is 1110 
Scientific Notation of num4 : (4.000000e+00+1.000000e+00i)