Explain java.util.random package, JAVA Programming

Assignment Help:

Explain java.util.Random package?

The java.util.Random class permits you to create objects which generates pseudo-random numbers along with uniform or gaussian distributions according to a linear congruential formula along with a 48-bit seed.

The algorithm used is excellent sufficient for single-player, no-money games. I wouldn't use it for cryptography.
You can select the seed or you can let Java pick one based on the current time.

Random r = new Random(109876L);
int i = r.nextInt();
int j = r.nextInt();
long l = r.nextLong();
float f = r.nextFloat();
double d = r.nextDouble();
int k = r.nextGaussian();
The nextInt(), nextLong(), and nextBytes() techniques all cover their respective ranges along with equal likelihood. For example, to simulate a six-sided die; in which is to produces a random integer among 1 and 6, you might write
Random r = new Random();
int die = r.nextInt();
die = Math.abs(die);
die = die % 6;
die += 1;
System.out.println(die);

The nextGaussian() method returns a pseudo-random, Gaussian distributed, double value with mean 0.0 and standard deviation 1.0.
The nextBytes() method fills a byte[] array with random bytes. For example,

byte[] ba = new byte[1024];
Random r = new Random();
r.nextBytes(ba);
for (int i = 0; i < ba.length; i++) {
System.out.println(ba[i]);


Related Discussions:- Explain java.util.random package

Area of the curve, program t ofind area under the curve y=f(x) between x=a ...

program t ofind area under the curve y=f(x) between x=a and x=b integrate y=f(x) between the limits a and b

Rmi-iiop support dynamic downloading of classes, Does RMI-IIOP support dyna...

Does RMI-IIOP support dynamic downloading of classes? Ans) No, RMI-IIOP doesn't support dynamic downloading of the classes as it is complete with CORBA in DII (Dynamic Interface

Support for web and enterprise web applications, Support for Web and Enterp...

Support for Web and Enterprise Web Applications Java offers an extensive support for the development of web and enterprise applications Servlets, JSP, Applets, RMI, JDBC, EJBs

Boardcoloring , n this problem you are given a board in which some of the e...

n this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, such

Android App Clone, Hello, My friend Roshan from India told me that you pro...

Hello, My friend Roshan from India told me that you provide a high quality programming service which is why I''m here. I would like you to make a clone of an android app the app

Package inheritance hierarchy program, (Package Inheritance Hierarchy) Pack...

(Package Inheritance Hierarchy) Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create

What is pop, The Post Office Protocol is an application-level protocol with...

The Post Office Protocol is an application-level protocol within an intranet which is used by the local e-mail clients to send and retrieve e-mails from a remote server those are l

Overview of struts?, Struts is a framework with set of co operating servlet...

Struts is a framework with set of co operating servlets, classes and JSP tags that create a reusable MVC 2 design.     1. Client (Browser) : A request from the cli

Program implement class which have main string method, Implement the Money ...

Implement the Money class discussed in class. This class should represent a dollar and cents amount with 0-99 cents and the cents being the same sign as the dollars. The class shou

Program for using arraylists in two ways, In this lab, you will practice us...

In this lab, you will practice using ArrayLists in two ways.  The first is in the problem domain class Question.java (see the UML diagram shown below) which contains data for trivi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd