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Swap two numbers in C#
To swap two numbers, work with the following logic.
Set two variables for swapping −
val1 = 100; val2 = 200;
Now perform the following operation for swap −
val1 = val1 + val2; val2 = val1 - val2; val1 = val1 - val2;
The following is the code −
Example
using System; namespace Demo { class Program { static void Main(string[] args) { int val1,val2; val1 = 100; val2 = 200; Console.WriteLine("Values before swap..."); Console.WriteLine(val1.ToString()); Console.WriteLine(val2.ToString()); val1 = val1 + val2; val2 = val1 - val2; val1 = val1 - val2; Console.WriteLine("Values after swap..."); Console.WriteLine(val1.ToString()); Console.WriteLine(val2.ToString()); Console.ReadLine(); } } }
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