Swap Two Numbers Using Pointers in Golang

Write a program that will ask the user to give two numbers and then the program will swap the arrangement of the two numbers and display the result on the screen using pointers.

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Sample Program Output

Program Listing

/* swap.go

   Author   : Mr. Jake Rodriguez Pomperada, MAED-IT

   Date     : August 8, 2019  Thursday  5:49 AM

   Location : Bacolod City, Negros Occidental

   Website  : http://www.jakerpomperada.com

   Emails   : jakerpomperada@gmail.com and jake_pomperada@tup.edu.ph

 */

package main

import "fmt"

func main() {

var val1,val2,temp int32

fmt.Print("\n")

fmt.Print("\tSwap Two Numbers Using Pointers")

fmt.Print("\n\n")

fmt.Print("\tEnter first value   : ")

fmt.Scanf("%d\n",&val1)

fmt.Print("\tEnter second value  : ")

fmt.Scanf("%d\n",&val2)

fmt.Print("\n")

fmt.Print("\t===== BEFORE SWAPPING ===== ")

fmt.Print("\n\n")

fmt.Print("\tA = ",val1," and B = ",val2)

fmt.Print("\n\n")

a := &val1;

b := &val2;

temp = *a;

*a = *b;

*b = temp;

fmt.Print("\t===== AFTER SWAPPING ===== ")

fmt.Print("\n\n")

fmt.Print("\tA = ",val1," and B = ",val2)

fmt.Print("\n\n")

fmt.Print("\tEnd of Program")

fmt.Print("\n")

}