java.util
Class Random

java.lang.Object
  java.util.Random

public class Random
extends Object

This class implements a pseudo-random number generator.

Constructor Summary

Random()
Constructs a random number generator using the system clock to generate the seed.

Random(long seed)
Constructs a random number generator given a seed.

Method Summary

protected int	next(int bits)
int	nextInt() Returns the next random integer.
int	nextInt(int n) Returns a random integer between 0 and n-1.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait

Constructor Detail

Random

public Random()

Constructs a random number generator using the system clock to generate the seed.

Random

public Random(long seed)

Constructs a random number generator given a seed.

Parameters:

seed - The seed.

Method Detail

next

protected int next(int bits)

nextInt

public int nextInt()

Returns the next random integer.

Returns:

a random positive or negative integer.

nextInt

public int nextInt(int n)

Returns a random integer between 0 and n-1.

Parameters:

n - a positive integer

Returns:

a random integer in the range 0 to n-1