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99.2-25.6 0 0 6.4-12.8 9.6-19.2 54.4-105.6 275.2-524.8 288-553.6 6.4-19.2-3.2-32-19.2-32C777.6 76.8 771.2 80 764.8 86.4z"></path></svg><div class="outlook-dropdown"><!----></div></button></div><div id="docsearch-container"></div><!--[--><!----><!--]--><button class="toggle-navbar-button" aria-label="Toggle Navbar" aria-expanded="false" aria-controls="nav-screen"><span class="button-container"><span class="button-top"></span><span class="button-middle"></span><span class="button-bottom"></span></span></button></div></header><!----><!--]--><!----><div class="toggle-sidebar-wrapper"><span class="arrow start"></span></div><aside class="sidebar" id="sidebar"><!--[--><!----><!--]--><ul class="sidebar-links"><li><!--[--><a href="/home.html" class="nav-link sidebar-link sidebar-page" aria-label="一、前言"><!---->一、前言<!----></a><ul class="sidebar-sub-headers"></ul><!--]--></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">二、Java基础</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">三、Java进阶</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">四、数据库</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">五、计算机基础</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">六、求职面试</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">七、学习建议</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">八、知识库搭建</span><span class="arrow end"></span></button><!----></section></li><li><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">九、联系作者</span><span class="arrow end"></span></button><!----></section></li></ul><!--[--><!----><!--]--></aside><!--[--><main class="page" id="main-content"><!--[--><!----><nav class="breadcrumb disable"></nav><div class="page-title"><h1><!---->String</h1><div class="page-info"><span class="page-author-info" aria-label="作者🖊" data-balloon-pos="down"><svg xmlns="http://www.w3.org/2000/svg" class="icon author-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="author icon"><path d="M649.6 633.6c86.4-48 147.2-144 147.2-249.6 0-160-128-288-288-288s-288 128-288 288c0 108.8 57.6 201.6 147.2 249.6-121.6 48-214.4 153.6-240 288-3.2 9.6 0 19.2 6.4 25.6 3.2 9.6 12.8 12.8 22.4 12.8h704c9.6 0 19.2-3.2 25.6-12.8 6.4-6.4 9.6-16 6.4-25.6-25.6-134.4-121.6-240-243.2-288z"></path></svg><span><a class="page-author-item" href="/about-the-author/" target="_blank" rel="noopener noreferrer">沉默王二</a></span><span property="author" content="沉默王二"></span></span><!----><!----><!----><!----><span class="page-word-info" aria-label="字数🔠" data-balloon-pos="down"><svg xmlns="http://www.w3.org/2000/svg" class="icon word-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="word icon"><path d="M518.217 432.64V73.143A73.143 73.143 0 01603.43 1.097a512 512 0 01419.474 419.474 73.143 73.143 0 01-72.046 85.212H591.36a73.143 73.143 0 01-73.143-73.143z"></path><path d="M493.714 566.857h340.297a73.143 73.143 0 0173.143 85.577A457.143 457.143 0 11371.566 117.76a73.143 73.143 0 0185.577 73.143v339.383a36.571 36.571 0 0036.571 36.571z"></path></svg><span>约 9 字</span><meta property="wordCount" content="9"></span><span class="page-reading-time-info" aria-label="阅读时间⌛" data-balloon-pos="down"><svg xmlns="http://www.w3.org/2000/svg" class="icon timer-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="timer icon"><path d="M799.387 122.15c4.402-2.978 7.38-7.897 7.38-13.463v-1.165c0-8.933-7.38-16.312-16.312-16.312H256.33c-8.933 0-16.311 7.38-16.311 16.312v1.165c0 5.825 2.977 10.874 7.637 13.592 4.143 194.44 97.22 354.963 220.201 392.763-122.204 37.542-214.893 196.511-220.2 389.397-4.661 5.049-7.638 11.651-7.638 19.03v5.825h566.49v-5.825c0-7.379-2.849-13.981-7.509-18.9-5.049-193.016-97.867-351.985-220.2-389.527 123.24-37.67 216.446-198.453 220.588-392.892zM531.16 450.445v352.632c117.674 1.553 211.787 40.778 211.787 88.676H304.097c0-48.286 95.149-87.382 213.728-88.676V450.445c-93.077-3.107-167.901-81.297-167.901-177.093 0-8.803 6.99-15.793 15.793-15.793 8.803 0 15.794 6.99 15.794 15.793 0 80.261 63.69 145.635 142.01 145.635s142.011-65.374 142.011-145.635c0-8.803 6.99-15.793 15.794-15.793s15.793 6.99 15.793 15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>小于 1 分钟</span><meta property="timeRequired" content="PT1M"></span></div><hr></div><!----><!----><div class="theme-hope-content"><div class="auto-catalog-wrapper"><h2 class="main-title">目录</h2><!--[--><h3 id="Java 字符串优化：详解 String.intern() 方法" class="child-title"><a href="#Java 字符串优化：详解 String.intern() 方法" class="header-anchor">#</a><a href="/string/intern.html" class="catalog-title"><!----><!---->Java 字符串优化：详解 String.intern() 方法</a></h3><!----><!--]--><!--[--><h3 id="为什么Java字符串String是不可变的？" class="child-title"><a href="#为什么Java字符串String是不可变的？" class="header-anchor">#</a><a href="/string/immutable.html" class="catalog-title"><!----><!---->为什么Java字符串String是不可变的？</a></h3><!----><!--]--><!--[--><h3 id="最优雅的Java字符串String拼接是哪种方式？" class="child-title"><a href="#最优雅的Java字符串String拼接是哪种方式？" class="header-anchor">#</a><a href="/string/join.html" class="catalog-title"><!----><!---->最优雅的Java字符串String拼接是哪种方式？</a></h3><!----><!--]--><!--[--><h3 id="如何在Java中拆分字符串：详解String类的split()方法" class="child-title"><a href="#如何在Java中拆分字符串：详解String类的split()方法" class="header-anchor">#</a><a href="/string/split.html" class="catalog-title"><!----><!---->如何在Java中拆分字符串：详解String类的split()方法</a></h3><!----><!--]--><!--[--><h3 id="字符串相等判断：Java中的equals()与==的区别与用法" class="child-title"><a href="#字符串相等判断：Java中的equals()与==的区别与用法" class="header-anchor">#</a><a href="/string/equals.html" class="catalog-title"><!----><!---->字符串相等判断：Java中的equals()与==的区别与用法</a></h3><!----><!--]--><!--[--><h3 id="深入理解Java字符串String常量池" class="child-title"><a href="#深入理解Java字符串String常量池" class="header-anchor">#</a><a href="/string/constant-pool.html" class="catalog-title"><!----><!---->深入理解Java字符串String常量池</a></h3><!----><!--]--><!--[--><h3 id="深入解读String类源码及其应用技巧" class="child-title"><a href="#深入解读String类源码及其应用技巧" class="header-anchor">#</a><a href="/string/string-source.html" class="catalog-title"><!----><!---->深入解读String类源码及其应用技巧</a></h3><!----><!--]--><!--[--><h3 id="聊聊 Java String、StringBuilder、StringBuffer 三兄弟" class="child-title"><a href="#聊聊 Java String、StringBuilder、StringBuffer 三兄弟" class="header-anchor">#</a><a href="/string/builder-buffer.html" class="catalog-title"><!----><!---->聊聊 Java String、StringBuilder、StringBuffer 三兄弟</a></h3><!----><!--]--></div></div><!----><footer class="page-meta"><!----><div class="meta-item git-info"><!----><!----></div></footer><!----><div class="giscus-wrapper input-top" id="comment" style="display:block;"><div class="loading-icon-wrapper" style="display:flex;align-items:center;justify-content:center;height:96px"><svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" preserveAspectRatio="xMidYMid" viewBox="25 25 50 50"><animateTransform attributeName="transform" type="rotate" dur="2s" keyTimes="0;1" repeatCount="indefinite" values="0;360"></animateTransform><circle cx="50" cy="50" r="20" fill="none" stroke="currentColor" stroke-width="4" stroke-linecap="round"><animate attributeName="stroke-dasharray" dur="1.5s" keyTimes="0;0.5;1" 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