how to round whole numbers to add a .0 in c# code example

Example 1: C# .net core convert to int round up

// Use Math.Ceiling to round up
Math.Ceiling(0.5); // 1

// Use Math.Round to just round
Math.Round(0.5, MidpointRounding.AwayFromZero); // 1

// And Math.Floor to round down
Math.Floor(0.5); // 0

Example 2: round to the nearest whole number c#

var roundedA = Math.Round(1.1, 0); // Output: 1
var roundedB = Math.Round(1.5, 0, MidpointRounding.AwayFromZero); // Output: 2
var roundedC = Math.Round(1.9, 0); // Output: 2
var roundedD = Math.Round(2.5, 0); // Output: 2
var roundedE = Math.Round(2.5, 0, MidpointRounding.AwayFromZero); // Output: 3
var roundedF = Math.Round(3.49, 0, MidpointRounding.AwayFromZero); // Output: 3