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Showing content from https://docs.microsoft.com/en-us/dotnet/api/microsoft.visualbasic.vbmath.randomize below:

VBMath.Randomize Method (Microsoft.VisualBasic) | Microsoft Learn

VBMath.Randomize Method Definition

Initializes the random-number generator.

Overloads Randomize()

Source:: VBMath.vb

Source:: VBMath.vb

Source:: VBMath.vb

Source:: VBMath.vb

Initializes the random-number generator.

public:
 static void Randomize();

public static void Randomize();

static member Randomize : unit -> unit

Public Sub Randomize ()

Examples

This example uses the Randomize statement to initialize the random-number generator. Because the number argument has been omitted, Randomize uses the return value from the Timer function as the new seed value.

' Initialize the random-number generator.
Randomize()
' Generate random value between 1 and 6.
Dim value As Integer = CInt(Int((6 * Rnd()) + 1))

Remarks

This overload of the Randomize method does not take a seed value. Instead, the value returned by the system timer is used as the new seed value.

If Randomize is not used, the Rnd function (with no arguments) uses the same number as a seed the first time it is called, and thereafter uses the last-generated number as a seed value.

Note

To repeat sequences of random numbers, call Rnd with a negative argument immediately before using Randomize with a numeric argument.

Important

Because the Random statement and the Rnd function start with a seed value and generate numbers that fall within a finite range, the results may be predictable by someone who knows the algorithm used to generate them. Consequently, the Random statement and the Rnd function should not be used to generate random numbers for use in cryptography. For more information, see RandomNumberGenerator.

See also

Randomize(Double)

Source:: VBMath.vb

Source:: VBMath.vb

Source:: VBMath.vb

Source:: VBMath.vb

Initializes the random-number generator.

public:
 static void Randomize(double Number);

public static void Randomize(double Number);

static member Randomize : double -> unit

Public Sub Randomize (Number As Double)

Parameters

Number: Double

Optional. An Object or any valid numeric expression.

Examples

' Initialize the random-number generator.
Randomize()
' Generate random value between 1 and 6.
Dim value As Integer = CInt(Int((6 * Rnd()) + 1))

Remarks

Randomize uses Number to initialize the Rnd function's random-number generator, giving it a new seed value. If you omit Number, the value returned by the system timer is used as the new seed value.

If Randomize is not used, the Rnd function (with no arguments) uses the same number as a seed the first time it is called, and thereafter uses the last-generated number as a seed value.

Note

To repeat sequences of random numbers, call Rnd with a negative argument immediately before using Randomize with a numeric argument. Using Randomize with the same value for Number does not repeat the previous sequence.

Important