See the following examples for the formatting on float
and date
:
using System;
using System.Globalization;
using System.Threading;
namespace CSharpLearning {
class Program {
static void Main(string[] args) {
double f = 0.049;
// print out float: 0.049
Console.WriteLine(f);
// keep 2 decimals with rounding
Console.WriteLine(String.Format("{0:0.00}", f)); // 0.05
Console.WriteLine("{0:0.00}", f); // 0.05
// in percentage format
Console.WriteLine(f.ToString("P")); // 4.900%
// print out currency/money
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-us");
int money = 1398737;
Console.WriteLine(money.ToString("C2")); // $1,398,737.00
// print out date
DateTime d = new DateTime(2020, 2, 8, 12, 7, 7, 123);
// print out year: 20 20 2020 2020
Console.WriteLine(String.Format("{0:y yy yyy yyyy}", d));
// print out month: 2 02 Feb February
Console.WriteLine(String.Format("{0:M MM MMM MMMM}", d));
// print out day: 8 08 Sat Saturday
Console.WriteLine(String.Format("{0:d dd ddd dddd}", d));
// print out year-month-day: 2020-02-08 Saturday
Console.WriteLine($"{d:yyyy-MM-dd dddd}");
}
}
}