java17.0.4.1帮助文档_java17.0.4.1资源-CSDN下载

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Java 17.0.4.1 是Oracle公司发布的一个重要的Java开发版本，它提供了对先前版本的增强和错误修复，以确保更稳定、安全的编程环境。此版本的更新文档，尤其是“javadoc”，是开发者理解API接口、类库和方法的重要资源。Javadoc是一种特殊的工具，它能够自动生成关于Java源代码的文档，让开发者可以轻松查阅和理解代码的使用方式。在Java 17.0.4.1的帮助文档中，我们首先会发现详尽的API文档，这部分内容包括了所有内置类、接口、枚举和异常的描述。这些文档通常会列出每个类的构造函数、成员变量、方法以及它们的参数、返回值、异常信息等。这对于理解和使用Java标准库中的各种组件至关重要。例如，`java.util.ArrayList` 是一个常用的动态数组实现，其Javadoc会详细说明如何添加、删除和访问元素，以及它的容量如何调整。`java.io.File` 类则用于处理文件和目录，其Javadoc会涵盖创建、读取、写入文件的方法，以及如何操作路径和文件属性。在文档中，开发者还能找到关于并发、网络编程、I/O、集合框架、反射、垃圾收集等核心Java特性的详细解释。比如，`java.util.concurrent` 包含了许多线程安全的数据结构和并发控制工具，如`ExecutorService` 和 `Future`，它们在多线程编程中非常关键。 Java 17.0.4.1 的安全性改进也值得关注。Java的安全模型不断演进，以应对新的威胁。帮助文档可能包含了关于如何正确配置和使用安全策略、证书和密钥库的信息，以及关于Java加密API（如`java.security.KeyStore` 和 `java.security.cert.Certificate`）的使用说明。此外，对于新特性或改进，比如模块系统（Project Jigsaw）、记录类（Records）、文本块（Text Blocks）等，Java 17.0.4.1的帮助文档也会有专门章节进行介绍。模块系统提高了应用程序的封装性和可维护性，而记录类简化了创建不可变数据容器的过程，文本块则为编写多行字符串提供了更简洁的语法。 Javadoc文档还包含示例代码，这些示例展示了如何实际应用API，这对初学者和经验丰富的开发者都非常有用。通过阅读和运行这些示例，开发者能快速掌握新功能的用法，并了解最佳实践。 Java 17.0.4.1的帮助文档是开发人员不可或缺的参考资料，它提供了全面、准确的API信息，有助于提升开发效率，保证代码质量，并确保程序与Java平台的兼容性。无论你是新手还是资深开发者，都应该充分利用这份文档来优化你的Java开发工作。

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java17.0.4.1帮助文档（2000个子文件）

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<!DOCTYPE HTML> <html lang="en"> <head>  <title>Uses of Class java.lang.String (Java SE 17 & JDK 17)</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="description" content="use: module: java.base, package: java.lang, class: String"> <meta name="generator" content="javadoc/ClassUseWriter"> <link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style"> <link rel="stylesheet" type="text/css" href="../../../../script-dir/jquery-ui.min.css" title="Style"> <link rel="stylesheet" type="text/css" href="../../../../jquery-ui.overrides.css" title="Style"> <script type="text/javascript" src="../../../../script.js"></script> <script type="text/javascript" src="../../../../script-dir/jquery-3.5.1.min.js"></script> <script type="text/javascript" src="../../../../script-dir/jquery-ui.min.js"></script> </head> <body class="class-use-page"> <script type="text/javascript">var pathtoroot = "../../../../"; loadScripts(document, 'script');</script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript> <div class="flex-box"> <header role="banner" class="flex-header"> <nav role="navigation">  <div class="top-nav" id="navbar-top"> <div class="skip-nav"><a href="#skip-navbar-top" title="Skip navigation links">Skip navigation links</a></div> <div class="about-language"><div style="margin-top: 14px;"><strong>Java SE 17 & JDK 17</strong> </div></div> <ul id="navbar-top-firstrow" class="nav-list" title="Navigation"> <li><a href="../../../../index.html">Overview</a></li> <li><a href="../../../module-summary.html">Module</a></li> <li><a href="../package-summary.html">Package</a></li> <li><a href="../String.html" title="class in java.lang">Class</a></li> <li class="nav-bar-cell1-rev">Use</li> <li><a href="../package-tree.html">Tree</a></li> <li><a href="../../../../preview-list.html">Preview</a></li> <li><a href="../../../../new-list.html">New</a></li> <li><a href="../../../../deprecated-list.html">Deprecated</a></li> <li><a href="../../../../index-files/index-1.html">Index</a></li> <li><a href="../../../../help-doc.html#use">Help</a></li> </ul> </div> <div class="sub-nav"> <div class="nav-list-search"><label for="search-input">SEARCH:</label> <input type="text" id="search-input" value="search" disabled="disabled"> <input type="reset" id="reset-button" value="reset" disabled="disabled"> </div> </div>  <span class="skip-nav" id="skip-navbar-top"></span></nav> </header> <div class="flex-content"> <main role="main"> <div class="header"> <h1 title="Uses of Class java.lang.String" class="title">Uses of Class<br>java.lang.String</h1> </div> <div class="caption"><span>Packages that use <a href="../String.html" title="class in java.lang">String</a></span></div> <div class="summary-table two-column-summary"> <div class="table-header col-first">Package</div> <div class="table-header col-last">Description</div> <div class="col-first even-row-color"><a href="#com.sun.jarsigner">com.sun.jarsigner</a></div> <div class="col-last even-row-color"> <div class="block">This package comprises the interfaces and classes used to define the signing mechanism used by the <code>jarsigner</code> tool.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.java.accessibility.util">com.sun.java.accessibility.util</a></div> <div class="col-last odd-row-color"> <div class="block">Provides a collection of interfaces and classes that compose the Java Accessibility Utilities.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.jdi">com.sun.jdi</a></div> <div class="col-last even-row-color"> <div class="block">This is the core package of the Java Debug Interface (JDI), it defines mirrors for values, types, and the target VirtualMachine itself - as well bootstrapping facilities.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.jdi.connect">com.sun.jdi.connect</a></div> <div class="col-last odd-row-color"> <div class="block">This package defines connections between the virtual machine using the JDI and the target virtual machine.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.jdi.connect.spi">com.sun.jdi.connect.spi</a></div> <div class="col-last even-row-color"> <div class="block">This package comprises the interfaces and classes used to develop new <a href="../../../../jdk.jdi/com/sun/jdi/connect/spi/TransportService.html" title="class in com.sun.jdi.connect.spi"><code>TransportService</code></a> implementations.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.jdi.event">com.sun.jdi.event</a></div> <div class="col-last odd-row-color"> <div class="block">This package defines JDI events and event processing.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.jdi.request">com.sun.jdi.request</a></div> <div class="col-last even-row-color"> <div class="block">This package is used to request that a JDI event be sent under specified conditions.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.management">com.sun.management</a></div> <div class="col-last odd-row-color"> <div class="block">This package contains the JDK's extension to the standard implementation of the <a href="../../../../java.management/java/lang/management/package-summary.html"><code>java.lang.management</code></a> API and also defines the management interface for some other components of the platform.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.net.httpserver">com.sun.net.httpserver</a></div> <div class="col-last even-row-color"> <div class="block">Provides a simple high-level Http server API, which can be used to build embedded HTTP servers.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.nio.sctp">com.sun.nio.sctp</a></div> <div class="col-last odd-row-color"> <div class="block">A Java API for Stream Control Transport Protocol.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.security.auth">com.sun.security.auth</a></div> <div class="col-last even-row-color"> <div class="block">Provides implementations of <a href="../../security/Principal.html" title="interface in java.security"><code>Principal</code></a>.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.security.auth.login">com.sun.security.auth.login</a></div> <div class="col-last odd-row-color"> <div class="block">Provides an implementation of <a href="../../../javax/security/auth/login/Configuration.html" title="class in javax.security.auth.login"><code>Configuration</code></a>.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.security.auth.module">com.sun.security.auth.module</a></div> <div class="col-last even-row-color"> <div class="block">Provides implementations of <a href="../../../javax/security/auth/spi/LoginModule.html" title="interface in javax.security.auth.spi"><code>LoginModule</code></a>.</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.security.jgss">com.sun.security.jgss</a></div> <div class="col-last odd-row-color"> <div class="block">This package defines classes and interfaces for the JDK extensions to the GSS-API.</div> </div> <div class="col-first even-row-color"><a href="#com.sun.source.doctree">com.sun.source.doctree</a></div> <div class="col-last even-row-color"> <div class="block">Provides interfaces to represent documentation comments as abstract syntax trees (AST).</div> </div> <div class="col-first odd-row-color"><a href="#com.sun.source.tree">com.sun.source.tree</a></div> <div class="col-last odd-row-color"> <div class="block">Provides interfaces to represent source code as abstract syntax trees (AST).</div> </div> <div class="col-first even-row-color"><a href="#com.sun.source.util">com.sun.source.util</a></div> <div class="col