1) Swapping two numbers using a third variable.
using System;
namespace SwappingPrograms
{
public class Program
{
public static void Main()
{
int number1 = 10, number2 = 20, temp = 0;
Console.WriteLine($"Before SWapping number1= {number1}, number2 = {number2}");
temp = number1; //temp=10
number1 = number2; //number1=20
number2 = temp; //number2=10
Console.WriteLine($"After swapping number1= {number1}, number2 = {number2}");
Console.ReadLine();
}
}
}
2) Swap two integers without using the third variable.
using System;
namespace SwappingPrograms
{
public class Program
{
public static void Main()
{
int number1 = 10, number2 = 20;
Console.WriteLine($"Before SWapping number1= {number1}, number2 = {number2}");
number1 = number1 * number2; //number1=200 (10*20)
number2 = number1 / number2; //number2=10 (200/20)
number1 = number1 / number2; //number1=20 (200/10)
Console.WriteLine($"After swapping number1= {number1}, number2 = {number2}");
Console.ReadLine();
}
}
}Output :
