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Generate Random Numbers With C#

Posted On : Aug 20, 2020 - 00:36

How to generate and use random numbers with c sharp?

The Random class with its Next and NextDouble functions can be used for this. The Next function generates int (integer) type of numbers while NextDouble generates numbers between 0 and 1 in decimal. NextDouble function takes no parameters but Next function takes two parameters as minimum and maximum numbers. If only one parameter specified, minimum number will be considered as 0 and entered number will be considered as maximum value. The minimum value is included in the random numbers to be generated, while the biggest number to be generated is always 1 less than the maximum value entered.

// Declare an integer variable to be assigned random number to it later.
int myinteger = 0;

// Declare a new variable called "generate_random" from Random class.
Random generate_random = new Random();

// Assign the random integer which generated between 0 and 101 (minimum is 0, maximum is 100) into the variable called "myinteger".
myinteger = generate_random.Next(0, 101);
// Example output value : 19

double mydoublenumber = 0;
Random generate_double = new Random();
mydoublenumber = generate_double.NextDouble();
// Example output value : 0,330423261192824

// To decrease the decimal count, ("0.##") format of toString() function can be used.
mydoublenumber.toString("0.##");
// Example output value : 0,33

mydoublenumber.toString("0.####");
// Example output value : 0,3304

30
1 (3 %)
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