jdk/src/java.base/share/classes/java/lang/package-info.java
Sean Mullan db85090553 8338411: Implement JEP 486: Permanently Disable the Security Manager
Co-authored-by: Sean Mullan <mullan@openjdk.org>
Co-authored-by: Alan Bateman <alanb@openjdk.org>
Co-authored-by: Weijun Wang <weijun@openjdk.org>
Co-authored-by: Aleksei Efimov <aefimov@openjdk.org>
Co-authored-by: Brian Burkhalter <bpb@openjdk.org>
Co-authored-by: Daniel Fuchs <dfuchs@openjdk.org>
Co-authored-by: Harshitha Onkar <honkar@openjdk.org>
Co-authored-by: Joe Wang <joehw@openjdk.org>
Co-authored-by: Jorn Vernee <jvernee@openjdk.org>
Co-authored-by: Justin Lu <jlu@openjdk.org>
Co-authored-by: Kevin Walls <kevinw@openjdk.org>
Co-authored-by: Lance Andersen <lancea@openjdk.org>
Co-authored-by: Naoto Sato <naoto@openjdk.org>
Co-authored-by: Roger Riggs <rriggs@openjdk.org>
Co-authored-by: Brent Christian <bchristi@openjdk.org>
Co-authored-by: Stuart Marks <smarks@openjdk.org>
Co-authored-by: Ian Graves <igraves@openjdk.org>
Co-authored-by: Phil Race <prr@openjdk.org>
Co-authored-by: Erik Gahlin <egahlin@openjdk.org>
Co-authored-by: Jaikiran Pai <jpai@openjdk.org>
Reviewed-by: kevinw, aivanov, rriggs, lancea, coffeys, dfuchs, ihse, erikj, cjplummer, coleenp, naoto, mchung, prr, weijun, joehw, azvegint, psadhukhan, bchristi, sundar, attila
2024-11-12 17:16:15 +00:00

76 lines
3.6 KiB
Java

/*
* Copyright (c) 1998, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* Provides classes that are fundamental to the design of the Java
* programming language. The most important classes are {@link
* Object}, which is the root of the class hierarchy, and {@link
* Class}, instances of which represent classes at run time.
*
* <p id=wrapperClass>Frequently it is necessary to represent a
* value of primitive type as if it were an object.The <dfn>{@index
* "wrapper classes"}</dfn> {@link Boolean}, {@link Byte}, {@link
* Character}, {@link Short}, {@link Integer}, {@link Long}, {@link
* Float}, and {@link Double} serve this purpose. An object of type
* {@code Double}, for example, contains a field whose type is {@code
* double}, representing that value in such a way that a reference to
* it can be stored in a variable of reference type. As discussed in
* <cite>The Java Language Specification</cite>, the wrapper classes
* are involved in boxing (JLS {@jls 5.1.7}) and unboxing (JLS {@jls
* 5.1.8}) conversions. These classes provide a number of methods for
* converting among primitive values, as well as methods supporting
* such standard functionality as {@code equals} and {@code hashCode}.
* The {@link Void} class is a non-instantiable class that holds a
* reference to a {@code Class} object representing the type {@code
* void}.
*
* <p>The class {@link Math} provides commonly used mathematical
* functions such as {@linkplain Math#sin(double) sine}, {@linkplain
* Math#cos(double) cosine}, and {@linkplain Math#sqrt(double) square
* root}. The classes {@link String}, {@link StringBuffer}, and {@link
* StringBuilder} similarly provide commonly used operations on
* character strings.
*
* <p>Classes {@link ClassLoader}, {@link Process}, {@link ProcessBuilder},
* {@link Runtime}, and {@link System} provide "system operations" that
* manage the dynamic loading of classes, creation of external processes,
* and host environment inquiries such as the time of day.
*
* <p>Class {@link Throwable} encompasses objects that may be thrown
* by the {@code throw} statement. Subclasses of {@code Throwable}
* represent errors and exceptions.
*
* <a id="charenc"></a>
* <h2>Character Encodings</h2>
*
* The specification of the {@link java.nio.charset.Charset
* java.nio.charset.Charset} class describes the naming conventions
* for character encodings as well as the set of standard encodings
* that must be supported by every implementation of the Java
* platform.
*
* @since 1.0
*/
package java.lang;