how to use random method in .net core code example

Example 1: c# random number

int random_number = new Random().Next(1, 10) // Generates a number between 1 to 10

Example 2: random number generator c#

Random numberGen = new Random();
int amountToOutput = 4;
int minimumRange = 1;
int maximumRange = 20;

for(int i = 0; i < amountToOutput; i++)
{
  int randomNumber = numberGen.Next(minimumRange, maximumRange);
  Console.WriteLine(randomNumber);
}