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# Golang program to convert a signed integer value to a hexadecimal string

Here, we are going to learn how to convert a signed integer value to a hexadecimal string in Golang (Go Language)?
Submitted by Nidhi, on April 21, 2021 [Last updated : March 05, 2023]

## How to convert a signed integer value to a hexadecimal string in Golang?

Problem Solution:

Here, we will convert the value of singed integer variable into the hexadecimal string using strconv.FormatInt() function and print the result on the console screen.

Program/Source Code:

The source code to convert an integer value to a hexadecimal string is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

## Golang code to convert a signed integer value to a hexadecimal string

```// Golang program to convert a signed integer value

package main

import "fmt"
import "strconv"

func main() {
var val1 int64 = -10
var val2 int64 = -20
var str string

//Convert signed integer value into hex string.
str = strconv.FormatInt(val1, 16)
fmt.Println(str)

//Convert signed integer value into hex string.
str = strconv.FormatInt(val2, 16)
fmt.Println(str)
}
```

Output:

```-a
-14
```

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the "fmt", "strconv" packages then we can use a function related to imported packages.

In the main() function, we created two signed integer variables and one string variable. Then we converted the value of signed integer variables into the hexadecimal string using strconv.FormatInt() and assigned to str variable and then print result on the console screen.

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