Generate Random double type number in Java

In order to generate Random double type numbers in Java, we use the nextDouble() method of the java.util.Random class. This returns the next random double value between 0.0 (inclusive) and 1.0 (exclusive) from the random generator sequence.

Declaration - The java.util.Random.nextDouble() method is declared as follows −

public float nextDouble()

Let us see a program to generate random double type numbers in Java −

Example

 Live Demo

import java.util.Random;
public class Example {
   public static void main(String[] args) {
      Random rd = new Random(); // creating Random object
      System.out.println(rd.nextDouble()); // displaying a random double value between 0.0 & 1.0
   }
}

Output

0.40755033612457214

Note - The output might vary on Online Compilers.

Smita Kapse

Published on 09-Jan-2019 11:46:56

• Related Questions & Answers
• Generate Random Float type number in Java
• Generate Random Long type numbers in Java
• Java Program to generate random number with restrictions
• Generate Random boolean in Java
• Generate Random bytes in Java
• C++ program to generate random number
• Format double type in Java
• Generate Random Integer Numbers in Java
• Generate a random string in Java
• Convert a String to a double type number in Java
• Java Program to generate custom random number -1 or 1
• Java Program to generate a random number from an array
• How to generate a random number in C++?
• How to generate a random number in JavaScript?
• Java program to generate random numbers