Question

How to generate random number of type double in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                double d;

                Random generator = new Random();
                d = generator.NextDouble();
                Console.WriteLine(d); // 0.947165774622544
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:
  
0.947165774622544
 
*/

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Answer 2

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                double d;

                Random generator = new Random();
                d = generator.NextDouble();
                Console.WriteLine("{0:F8}", d); // 0.92800123
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:
  
0.92800123
 
*/

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Answer 3

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                double d;

                Random generator = new Random();
                for (int i = 0; i < 5; i++)
                {
                    d = generator.NextDouble();
                    Console.WriteLine("{0:F8}", d); 
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:
  
0.38425761
0.96099728
0.02579850
0.58213095
0.75735805
 
*/

70+ SQL courses for beginners and professionals

Answer 4

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                double d;

                Random generator = new Random();
                for (int i = 0; i < 5; i++)
                {
                    d = generator.NextDouble() * 100;
                    Console.WriteLine("{0:F8}", d); 
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:
  
30.29377345
0.82755862
16.86265283
94.93592600
76.88212133
 
*/

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