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Java - random() Method

Description

The method is used to generate a random number between 0.0 and 1.0. The range is: 0.0 =< Math.random < 1.0. Different ranges can be achieved by using arithmetic operations.

Syntax

static double random()

Parameters

Here is the detail of parameters −

This is a default method and accepts no parameter.

Return Value

This method returns a double.

Example

Live Demo

public class Test { 

   public static void main(String args[]) {
      System.out.println( Math.random() );
      System.out.println( Math.random() );
   }
}

This will produce the following result −

Output

0.16763945061451657
0.400551253762343

Note − The above result will vary every time you call random() method.

java_numbers.htm