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<TITLE>Reading Lines from a String Using a Regular Expression (Java Developers Almanac Example)
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<h1>The Java Developers Almanac 1.4</h1>
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<A HREF="../java.util.regex/pkg.html">java.util.regex</A><font color="#666666" class="xsmall-font">
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<B><A HREF="../java.util.regex/pkg.html#Lines">Lines</A></B><font color="#666666" class="xsmall-font">
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<h3>e445. Reading Lines from a String Using a Regular Expression</h3>
This example demonstrates how to read lines from a <code>CharSequence</code>. The
lines can be terminated with any of the legal line termination
character sequences: \r, \r\n, or \n.
<pre> CharSequence inputStr = <font color="#0066ff"><i>"a\rb"</i></font>; // Mac
inputStr = <font color="#0066ff"><i>"a\r\nb"</i></font>; // Windows
inputStr = <font color="#0066ff"><i>"a\nb"</i></font>; // Unix
// Compile the pattern
String patternStr = "^(.*)$";
Pattern pattern = Pattern.compile(patternStr, Pattern.MULTILINE);
Matcher matcher = pattern.matcher(inputStr);
// Read the lines
while (matcher.find()) {
// Get the line with the line termination character sequence
String lineWithTerminator = matcher.group(0);
// Get the line without the line termination character sequence
String lineWithoutTerminator = matcher.group(1);
}
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<b>Related Examples</b></font></td>
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e441. <a class="eglink" href="LineFilter.html?l=rel">
Using a Regular Expression to Filter Lines from a Reader
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e442. <a class="eglink" href="LineFilter2.html?l=rel">
Implementing a FilterReader to Filter Lines Based on a Regular Expression
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e443. <a class="eglink" href="Line.html?l=rel">
Matching Line Boundaries in a Regular Expression
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e444. <a class="eglink" href="Lines.html?l=rel">
Matching Across Line Boundaries in a Regular Expression
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e446. <a class="eglink" href="RemLine.html?l=rel">
Removing Line Termination Characters from a String
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See also:
<a class="eglink" href="/egs/java.util.regex/pkg.html?l=rel#Flags">
Flags
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<a class="eglink" href="/egs/java.util.regex/pkg.html?l=rel#Groups">
Groups
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<a class="eglink" href="/egs/java.util.regex/pkg.html?l=rel#Paragraphs">
Paragraphs
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<a class="eglink" href="/egs/java.util.regex/pkg.html?l=rel#Searching%20and%20Replacing">
Searching and Replacing
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<a class="eglink" href="/egs/java.util.regex/pkg.html?l=rel#Tokenizing">
Tokenizing
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