In this article, I am going to explain you, C# Pre-Increment and Post-Increment Operator with Example.
In C#, we can use, increment (++) or decrement (--) operators before and after the variable.
i++; // post-increment (postfix) ++i; // pre-increment (prefix) i--; // post-decrement (postfix) --i; // pre-decrement(prefix)
Here, value returned by i++ is value of (i) before the increment takes place and ++i is the value of i after the increment takes place.
C# Pre-Increment and Post-Increment Operator Example
Please refer below C# example to understand Pre and Post increment operator.
using System;
public class Program
{
public static void Main()
{
// Post-increment example
int a = 0;
int b = a++;
Console.WriteLine("Value of a: "+a);
Console.WriteLine("Value of b: "+b);
// In post-increment value of a is assigned to b before the increment take place
Console.WriteLine();
// Pre-increment example
int i = 0;
int j = ++i;
Console.WriteLine("Value of i: " +i);
Console.WriteLine("Value of j: " +j);
// in pre-increment value of i is incremented first and then assigned to j
}
}
OUTPUT: Value of a: 1 Value of b: 0 Value of i: 1 Value of j: 1
You can remember in this way also, in the expression i++, the variable (i) comes first, so its value is used as the value of the expression before (i) is incremented. In the expression ++i, the operator comes first, so its operation is performed before the value of (i).
In similar way, you can use pre-decrement and post decrement operator.
