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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]);
I have to Create a program that determine the shipping cost for an order based on he following chart: From To Price $0.00 $19.99 $2.95 $20.00 $49.99 $3.95
frequently used java array method
The LookupDispatchAction is a subclass of DispatchAction. It does a reverse lookup on the resource package to get the key and then gets the method whose name is associated with the
develop a one player multiple choice math game
A stored procedure is a set of statements/commands which reside in the database. The stored procedure is pre-compiled and keeps the database the effort of parsing and compiling sql
To integrate your Struts application with Spring, we have two options: ? Configure Spring to manage your Actions as beans, using the ContextLoaderPlugin, and set their dependenc
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1. Go to www.bytesizebook.com 2. Follow the first link: Guide to Web Development with Java 3. Click on Examples tab 4. Go down to Chapter 4 to find all jar folders, packages, class
What is java Bytecode Java programs (Source code) are compiled into a form known as Java bytecodes. Java compiler reads Java language source (.java) files, translates source
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