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<title>StringUtils (ZXing 3.5.4 API)</title>
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<div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">com.google.zxing.common</a></div>
<h1 title="Class StringUtils" class="title">Class StringUtils</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">com.google.zxing.common.StringUtils</div>
</div>
<section class="class-description" id="class-description">
<hr>
<div class="type-signature"><span class="modifiers">public final class </span><span class="element-name type-name-label">StringUtils</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
<div class="block">Common string-related functions.</div>
<dl class="notes">
<dt>Author:</dt>
<dd>Sean Owen, Alex Dupre</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color"><code><a href="#GB2312" class="member-name-link">GB2312</a></code></div>
<div class="col-last even-row-color"> </div>
<div class="col-first odd-row-color"><code>static final <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html" title="class or interface in java.nio.charset" class="external-link">Charset</a></code></div>
<div class="col-second odd-row-color"><code><a href="#GB2312_CHARSET" class="member-name-link">GB2312_CHARSET</a></code></div>
<div class="col-last odd-row-color"> </div>
<div class="col-first even-row-color"><code>static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color"><code><a href="#SHIFT_JIS" class="member-name-link">SHIFT_JIS</a></code></div>
<div class="col-last even-row-color"> </div>
<div class="col-first odd-row-color"><code>static final <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html" title="class or interface in java.nio.charset" class="external-link">Charset</a></code></div>
<div class="col-second odd-row-color"><code><a href="#SHIFT_JIS_CHARSET" class="member-name-link">SHIFT_JIS_CHARSET</a></code></div>
<div class="col-last odd-row-color"> </div>
</div>
</section>
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<h2>Method Summary</h2>
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<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html" title="class or interface in java.nio.charset" class="external-link">Charset</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#guessCharset(byte%5B%5D,java.util.Map)" class="member-name-link">guessCharset</a><wbr>(byte[] bytes,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="../DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,<wbr>?> hints)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#guessEncoding(byte%5B%5D,java.util.Map)" class="member-name-link">guessEncoding</a><wbr>(byte[] bytes,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="../DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,<wbr>?> hints)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
</div>
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<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="SHIFT_JIS_CHARSET">
<h3>SHIFT_JIS_CHARSET</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html" title="class or interface in java.nio.charset" class="external-link">Charset</a></span> <span class="element-name">SHIFT_JIS_CHARSET</span></div>
</section>
</li>
<li>
<section class="detail" id="GB2312_CHARSET">
<h3>GB2312_CHARSET</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html" title="class or interface in java.nio.charset" class="external-link">Charset</a></span> <span class="element-name">GB2312_CHARSET</span></div>
</section>
</li>
<li>
<section class="detail" id="SHIFT_JIS">
<h3>SHIFT_JIS</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">SHIFT_JIS</span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="tag-list">
<li><a href="../../../../constant-values.html#com.google.zxing.common.StringUtils.SHIFT_JIS">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="GB2312">
<h3>GB2312</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">GB2312</span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="tag-list">
<li><a href="../../../../constant-values.html#com.google.zxing.common.StringUtils.GB2312">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="guessEncoding(byte[],java.util.Map)">
<h3>guessEncoding</h3>
<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">guessEncoding</span><wbr><span class="parameters">(byte[] bytes,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="../DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,<wbr>?> hints)</span></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>bytes</code> - bytes encoding a string, whose encoding should be guessed</dd>
<dd><code>hints</code> - decode hints if applicable</dd>
<dt>Returns:</dt>
<dd>name of guessed encoding; at the moment will only guess one of:
"SJIS", "UTF8", "ISO8859_1", or the platform default encoding if none
of these can possibly be correct</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="guessCharset(byte[],java.util.Map)">
<h3>guessCharset</h3>
<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html" title="class or interface in java.nio.charset" class="external-link">Charset</a></span> <span class="element-name">guessCharset</span><wbr><span class="parameters">(byte[] bytes,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<a href="../DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,<wbr>?> hints)</span></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>bytes</code> - bytes encoding a string, whose encoding should be guessed</dd>
<dd><code>hints</code> - decode hints if applicable</dd>
<dt>Returns:</dt>
<dd>Charset of guessed encoding; at the moment will only guess one of:
<a href="#SHIFT_JIS_CHARSET"><code>SHIFT_JIS_CHARSET</code></a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/StandardCharsets.html#UTF_8" title="class or interface in java.nio.charset" class="external-link"><code>StandardCharsets.UTF_8</code></a>,
<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/StandardCharsets.html#ISO_8859_1" title="class or interface in java.nio.charset" class="external-link"><code>StandardCharsets.ISO_8859_1</code></a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/StandardCharsets.html#UTF_16" title="class or interface in java.nio.charset" class="external-link"><code>StandardCharsets.UTF_16</code></a>,
or the platform default encoding if
none of these can possibly be correct</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
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