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Java in a Nutshell

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The java.util Package

30.19 java.util.Random (JDK 1.0)

This class implements a pseudo-random number generator. nextDouble() and nextFloat() return a value between 0.0 and 1.0. nextLong() and nextInt() return long and int values distributed across the range of those data types. nextGaussian() returns pseudo-random values with a Gaussian distribution--the mean of the values is 0.0, and the standard deviation is 1.0. You can use the setSeed() method or the optional constructor argument to initialize the pseudo-random number generator with some variable seed value other than the current time (the default), or with a constant to ensure a repeatable sequence of pseudo-randomness.

public class Random extends Object implements Serializable {
    // Public Constructors
            public Random();
            public Random(long seed);
    // Public Instance Methods
        1.1public void nextBytes(byte[] bytes);
            public double nextDouble();
            public float nextFloat();
            public synchronized double nextGaussian();
            public int nextInt();
            public long nextLong();
            public synchronized void setSeed(long seed);
    // Protected Instance Methods
        1.1protected synchronized int next(int bits);

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