2362N/A * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * Provides classes that are fundamental to the design of the Java 0N/A * programming language. The most important classes are {@code 0N/A * Object}, which is the root of the class hierarchy, and {@code 0N/A * Class}, instances of which represent classes at run time. 0N/A * <p>Frequently it is necessary to represent a value of primitive 0N/A * type as if it were an object. The wrapper classes {@code Boolean}, 0N/A * {@code Character}, {@code Integer}, {@code Long}, {@code Float}, 0N/A * and {@code Double} serve this purpose. An object of type {@code 0N/A * Double}, for example, contains a field whose type is double, 0N/A * representing that value in such a way that a reference to it can be 0N/A * stored in a variable of reference type. These classes also provide 0N/A * a number of methods for converting among primitive values, as well 0N/A * as supporting such standard methods as equals and hashCode. The 0N/A * {@code Void} class is a non-instantiable class that holds a 0N/A * reference to a {@code Class} object representing the type void. 0N/A * <p>The class {@code Math} provides commonly used mathematical 0N/A * functions such as sine, cosine, and square root. The classes {@code 0N/A * String}, {@code StringBuffer}, and {@code StringBuilder} similarly 0N/A * provide commonly used operations on character strings. 0N/A * <p>Classes {@code ClassLoader}, {@code Process}, {@code 0N/A * ProcessBuilder}, {@code Runtime}, {@code SecurityManager}, and 0N/A * {@code System} provide "system operations" that manage the dynamic 0N/A * loading of classes, creation of external processes, host 0N/A * environment inquiries such as the time of day, and enforcement of 0N/A * security policies. 0N/A * <p>Class {@code Throwable} encompasses objects that may be thrown 0N/A * by the {@code throw} statement. Subclasses of {@code Throwable} 0N/A * represent errors and exceptions. 0N/A * <a name="charenc"></a> 0N/A * <h3>Character Encodings</h3> 0N/A * The specification of the {@link java.nio.charset.Charset 0N/A * java.nio.charset.Charset} class describes the naming conventions 0N/A * for character encodings as well as the set of standard encodings 0N/A * that must be supported by every implementation of the Java