how to do a random number in c# code example

Example 1: c# random number

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

Example 2: c# random

Random rnd = new Random();
for (int ctr = 1; ctr <= 50; ctr++) {
   Console.Write("{0,3}    ", rnd.Next(1000, 10000));
   if(ctr % 10 == 0) Console.WriteLine();
}

// The example displays output like the following:
//    9570    8979    5770    1606    3818    4735    8495    7196    7070    2313
//    5279    6577    5104    5734    4227    3373    7376    6007    8193    5540
//    7558    3934    3819    7392    1113    7191    6947    4963    9179    7907
//    3391    6667    7269    1838    7317    1981    5154    7377    3297    5320
//    9869    8694    2684    4949    2999    3019    2357    5211    9604    2593

Example 3: Random number in C#

The following code return a random number lower than 1000
  
    int num = random.Next(1000);  

The following code returns a random number between the min and the max range.

    // Instantiate random number generator.  
    private readonly Random _random = new Random();  
      
    // Generates a random number within a range.      
    public int RandomNumber(int min, int max)  
    {  
      return _random.Next(min, max);  
    }