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<div class="subTitle">org.json</div>
<h2 title="Class JSONTokener" class="title">Class JSONTokener</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>org.json.JSONTokener</li>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../org/json/HTTPTokener.html" title="class in org.json">HTTPTokener</a>, <a href="../../org/json/XMLTokener.html" title="class in org.json">XMLTokener</a></dd>
</dl>
<hr>
<br>
<pre>public class <span class="typeNameLabel">JSONTokener</span>
extends java.lang.Object</pre>
<div class="block">A JSONTokener takes a source string and extracts characters and tokens from
it. It is used by the JSONObject and JSONArray constructors to parse
JSON source strings.</div>
<dl>
<dt><span class="simpleTagLabel">Version:</span></dt>
<dd>2014-05-03</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>JSON.org</dd>
</dl>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#JSONTokener-java.io.InputStream-">JSONTokener</a></span>(java.io.InputStream&nbsp;inputStream)</code>
<div class="block">Construct a JSONTokener from an InputStream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#JSONTokener-java.io.Reader-">JSONTokener</a></span>(java.io.Reader&nbsp;reader)</code>
<div class="block">Construct a JSONTokener from a Reader.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#JSONTokener-java.lang.String-">JSONTokener</a></span>(java.lang.String&nbsp;s)</code>
<div class="block">Construct a JSONTokener from a string.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#back--">back</a></span>()</code>
<div class="block">Back up one character.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#dehexchar-char-">dehexchar</a></span>(char&nbsp;c)</code>
<div class="block">Get the hex value of a character (base16).</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#end--">end</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#more--">more</a></span>()</code>
<div class="block">Determine if the source string still contains characters that next()
can consume.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>char</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#next--">next</a></span>()</code>
<div class="block">Get the next character in the source string.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>char</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#next-char-">next</a></span>(char&nbsp;c)</code>
<div class="block">Consume the next character, and check that it matches a specified
character.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#next-int-">next</a></span>(int&nbsp;n)</code>
<div class="block">Get the next n characters.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>char</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#nextClean--">nextClean</a></span>()</code>
<div class="block">Get the next char in the string, skipping whitespace.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#nextString-char-">nextString</a></span>(char&nbsp;quote)</code>
<div class="block">Return the characters up to the next close quote character.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#nextTo-char-">nextTo</a></span>(char&nbsp;delimiter)</code>
<div class="block">Get the text up but not including the specified character or the
end of line, whichever comes first.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#nextTo-java.lang.String-">nextTo</a></span>(java.lang.String&nbsp;delimiters)</code>
<div class="block">Get the text up but not including one of the specified delimiter
characters or the end of line, whichever comes first.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#nextValue--">nextValue</a></span>()</code>
<div class="block">Get the next value.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>char</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#skipTo-char-">skipTo</a></span>(char&nbsp;to)</code>
<div class="block">Skip characters until the next character is the requested character.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#syntaxError-java.lang.String-">syntaxError</a></span>(java.lang.String&nbsp;message)</code>
<div class="block">Make a JSONException to signal a syntax error.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../org/json/JSONTokener.html#toString--">toString</a></span>()</code>
<div class="block">Make a printable string of this JSONTokener.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<h4>JSONTokener</h4>
<pre>public&nbsp;JSONTokener(java.io.Reader&nbsp;reader)</pre>
<div class="block">Construct a JSONTokener from a Reader.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>reader</code> - A reader.</dd>
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<h4>JSONTokener</h4>
<pre>public&nbsp;JSONTokener(java.io.InputStream&nbsp;inputStream)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Construct a JSONTokener from an InputStream.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputStream</code> - The source.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
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<h4>JSONTokener</h4>
<pre>public&nbsp;JSONTokener(java.lang.String&nbsp;s)</pre>
<div class="block">Construct a JSONTokener from a string.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>s</code> - A source string.</dd>
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<h4>back</h4>
<pre>public&nbsp;void&nbsp;back()
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Back up one character. This provides a sort of lookahead capability,
so that you can test for a digit or letter before attempting to parse
the next number or identifier.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
</dl>
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<h4>dehexchar</h4>
<pre>public static&nbsp;int&nbsp;dehexchar(char&nbsp;c)</pre>
<div class="block">Get the hex value of a character (base16).</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>c</code> - A character between '0' and '9' or between 'A' and 'F' or
between 'a' and 'f'.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An int between 0 and 15, or -1 if c was not a hex digit.</dd>
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<h4>end</h4>
<pre>public&nbsp;boolean&nbsp;end()</pre>
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<h4>more</h4>
<pre>public&nbsp;boolean&nbsp;more()
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Determine if the source string still contains characters that next()
can consume.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if not yet at the end of the source.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
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<h4>next</h4>
<pre>public&nbsp;char&nbsp;next()
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Get the next character in the source string.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The next character, or 0 if past the end of the source string.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
</dl>
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<h4>next</h4>
<pre>public&nbsp;char&nbsp;next(char&nbsp;c)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Consume the next character, and check that it matches a specified
character.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>c</code> - The character to match.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The character.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code> - if the character does not match.</dd>
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<pre>public&nbsp;java.lang.String&nbsp;next(int&nbsp;n)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Get the next n characters.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>n</code> - The number of characters to take.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A string of n characters.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code> - Substring bounds error if there are not
n characters remaining in the source string.</dd>
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<h4>nextClean</h4>
<pre>public&nbsp;char&nbsp;nextClean()
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Get the next char in the string, skipping whitespace.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A character, or 0 if there are no more characters.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
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<h4>nextString</h4>
<pre>public&nbsp;java.lang.String&nbsp;nextString(char&nbsp;quote)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Return the characters up to the next close quote character.
Backslash processing is done. The formal JSON format does not
allow strings in single quotes, but an implementation is allowed to
accept them.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>quote</code> - The quoting character, either
<code>"</code>&nbsp;<small>(double quote)</small> or
<code>'</code>&nbsp;<small>(single quote)</small>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A String.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code> - Unterminated string.</dd>
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<h4>nextTo</h4>
<pre>public&nbsp;java.lang.String&nbsp;nextTo(char&nbsp;delimiter)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Get the text up but not including the specified character or the
end of line, whichever comes first.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>delimiter</code> - A delimiter character.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A string.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
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<pre>public&nbsp;java.lang.String&nbsp;nextTo(java.lang.String&nbsp;delimiters)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Get the text up but not including one of the specified delimiter
characters or the end of line, whichever comes first.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>delimiters</code> - A set of delimiter characters.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A string, trimmed.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
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<pre>public&nbsp;java.lang.Object&nbsp;nextValue()
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Get the next value. The value can be a Boolean, Double, Integer,
JSONArray, JSONObject, Long, or String, or the JSONObject.NULL object.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An object.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code> - If syntax error.</dd>
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<pre>public&nbsp;char&nbsp;skipTo(char&nbsp;to)
throws <a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></pre>
<div class="block">Skip characters until the next character is the requested character.
If the requested character is not found, no characters are skipped.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>to</code> - A character to skip to.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The requested character, or zero if the requested character
is not found.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a></code></dd>
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<h4>syntaxError</h4>
<pre>public&nbsp;<a href="../../org/json/JSONException.html" title="class in org.json">JSONException</a>&nbsp;syntaxError(java.lang.String&nbsp;message)</pre>
<div class="block">Make a JSONException to signal a syntax error.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>message</code> - The error message.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A JSONException object, suitable for throwing</dd>
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<h4>toString</h4>
<pre>public&nbsp;java.lang.String&nbsp;toString()</pre>
<div class="block">Make a printable string of this JSONTokener.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>" at {index} [character {character} line {line}]"</dd>
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