/*license*\ XBN-Java: Copyright (C) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com) This software is dual-licensed under the: - Lesser General Public License (LGPL) version 3.0 or, at your option, any later version; - Apache Software License (ASL) version 2.0. Either license may be applied at your discretion. More information may be found at - http://en.wikipedia.org/wiki/Multi-licensing. The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at: - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt - ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt \*license*/ package com.github.xbn.examples.regexutil.non_xbn; import java.util.regex.Matcher; import java.util.regex.Pattern; /** <p>Regex and non-regex example of finding the number of matches in a string.</p> <p>{@code java com.github.xbn.examples.regexutil.non_xbn.BcdRegexXmpl}</p> * @since 0.1.0 * @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a> **/ public class BcdRegexXmpl { public static final void main(String[] ignored) { String sSentence = "abcd bcdd"; int iBcds = 0; int iIdx = 0; while(true) { int iBcdIdx = sSentence.indexOf("bcd", iIdx); if(iBcdIdx == -1) { break; } iIdx = iBcdIdx + "bcd".length(); iBcds++; } System.out.println("Number of 'bcd's (no regex): " + iBcds); //Alternatively iBcds = 0; //Same regex as @la-comadreja, with word-boundaries //For multiple "bcd"-s in a single word, remove the "\\b"-s Matcher m = Pattern.compile("\\b\\w*bcd\\w*\\b").matcher(sSentence); while(m.find()) { System.out.println("Found at index " + m.start()); iBcds++; } System.out.println("Number of 'bcd's (with regex): " + iBcds); } }