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/* |
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* @(#)Random.java 1.39 03/01/23 |
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* %W% %E% |
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* |
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* Copyright 2003 Sun Microsystems, Inc. All rights reserved. |
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* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. |
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* class <code>Math</code> simpler to use. |
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* |
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* @author Frank Yellin |
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* @version 1.39, 01/23/03 |
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* @version %I%, %G% |
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* @see java.lang.Math#random() |
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* @since JDK1.0 |
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*/ |
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private final static long addend = 0xBL; |
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private final static long mask = (1L << 48) - 1; |
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/** |
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* Creates a new random number generator. Its seed is initialized to |
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* a value based on the current time: |
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* <blockquote><pre> |
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* public Random() { this(System.currentTimeMillis()); }</pre></blockquote> |
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* Two Random objects created within the same millisecond will have |
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* the same sequence of random numbers. |
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* |
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* @see java.lang.System#currentTimeMillis() |
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/** |
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* Creates a new random number generator. This constructor sets |
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* the seed of the random number generator to a value very likely |
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* to be distinct from any other invocation of this constructor. |
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*/ |
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public Random() { this(System.currentTimeMillis()); } |
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public Random() { this(++seedUniquifier + System.nanoTime()); } |
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private static volatile long seedUniquifier = 8682522807148012L; |
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/** |
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* Creates a new random number generator using a single |
