fmt.Fscanln() Function in Golang With Examples Last Updated : 05 May, 2020 Comments Improve Suggest changes Like Article Like Report In Go language, fmt package implements formatted I/O with functions analogous to C's printf() and scanf() function. The fmt.Fscanln() function in Go language scans the specified text, read from r and then stores successive space-separated values into successive arguments. This function stops scanning at a newline and after the final item, there must be a newline or EOF. 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 Fscanln(r io.Reader, a ...interface{}) (n int, err error) Parameters: This function accepts two parameters which are illustrated below: r io.Reader: This parameter contains the scanned specified texts. a ...interface{}: These parameters are accepting each specified elements. Returns: It returns the number of items successfully scanned. Example 1: C // Golang program to illustrate the usage of // fmt.Fscanln() function // Including the main package package main // Importing fmt, io and strings import ( "fmt" "io" "strings" ) // Calling main func main() { // Declaring list of strings, // integers and float value s := `gfg 9` // Calling NewReader() function for // reading each elements of the list // and then it place it into "r" r := strings.NewReader(s) // Declaring different types of variables var a string var b int for { // Calling Fscanln() function n, err := fmt.Fscanln(r, &a, &b) // Checking returned error is // end of the line (EOF) or not if err == io.EOF { break } // Checking if there is any error if err != nil { panic(err) } // Printing the number of items successfully // scanned and each elements too fmt.Printf("%d: %s, %d", n, a, b) } } Output: 2: gfg, 9 Example 2: C // Golang program to illustrate the usage of // fmt.Fscanln() function // Including the main package package main // Importing fmt, io and strings import ( "fmt" "io" "strings" ) // Calling main func main() { // Declaring list of strings, // integers and float value s := `gfg 9 true 5.78` // Calling NewReader() function for // reading each elements of the list // and then it place it into "r" r := strings.NewReader(s) // Declaring different types of variables var a string var b int var c bool var d float32 for { // Calling Fscanln() function n, err := fmt.Fscanln(r, &a, &b, &c, &d) // Checking returned error is // end of the line (EOF) or not if err == io.EOF { break } // Checking if there is any error if err != nil { panic(err) } // Printing the number of items successfully // scanned and each elements too fmt.Printf("%d: %s, %d, %t, %g", n, a, b, c, d) } } Output: 4: gfg, 9, true, 5.78 Comment More infoAdvertise with us Next Article fmt.Fscanln() Function in Golang With Examples K Kanchan_Ray Follow Improve Article Tags : Go Language Golang-fmt Similar Reads fmt.Fscan() 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.Fscan() function in Go language scans the specified text, read from r, and then stores the successive space-separated values into successive arguments. Here newlines get counte 3 min read fmt.Fscanf() 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.Fscanf() function in Go language scans the specified text, read from r and then stores the successive space-separated values into successive arguments as determined by the form 3 min read fmt.Fprintln() 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.Fprintln() function in Go language formats using the default formats for its operands and writes to w. Here Spaces are always added between the specified operands and a newline 3 min read fmt.Fprint() 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.Fprint() function in Go language formats using the default formats for its operands and writes to w. Here Spaces are added between operands when any string is not used as a par 3 min read fmt.Fprintf() 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.Fprintf() function in Go language formats according to a format specifier and writes to w. Moreover, this function is defined under the fmt package. Here, you need to import th 2 min read Like