Example usage for java.util.regex Pattern matcher

Introduction

In this page you can find the example usage for java.util.regex Pattern matcher.

Prototype

public Matcher matcher(CharSequence input)

Source Link

Document

Creates a matcher that will match the given input against this pattern.

Usage

From source file:Main.java

public static void main(String[] args) {
    CharSequence inputStr = "quit";
    String patternStr = "q";
    String replacementStr = "s";

    Pattern pattern = Pattern.compile(patternStr);

    Matcher matcher = pattern.matcher(inputStr);
    String output = matcher.replaceAll(replacementStr);
}

From source file:MainClass.java

public static void main(String[] av) {
    String joke = "dog " + "dogs";
    String regEx = "dog";

    Pattern doggone = Pattern.compile(regEx);
    Matcher m = doggone.matcher(joke);

    StringBuffer newJoke = new StringBuffer();
    while (m.find()) {
        m.appendReplacement(newJoke, "goat");
    }//from   ww w  .j  ava2s . c o m
    m.appendTail(newJoke);
    System.out.println(newJoke.toString());
}

From source file:MatcherEndExample.java

public static void main(String args[]) {
    String candidateString = "My name is Bond. James Bond.";
    String matchHelper[] = { "               ^", "                           ^" };
    Pattern p = Pattern.compile("Bond");
    Matcher matcher = p.matcher(candidateString);

    matcher.find();/*  ww w . ja  v a  2 s.  c  o m*/
    int endIndex = matcher.end();
    System.out.println(candidateString);
    System.out.println(matchHelper[0] + endIndex);

    matcher.find();
    int nextIndex = matcher.end();
    System.out.println(candidateString);
    System.out.println(matchHelper[1] + nextIndex);
}

From source file:Main.java

public static void main(String[] args) {
    String input = " javaId=2 test test javaId=33432. javaId=100";

    Pattern p = Pattern.compile("(javaId=)(\\d+)");
    Matcher m = p.matcher(input);

    StringBuffer result = new StringBuffer();
    while (m.find()) {
        System.out.println("Masking: " + m.group(2));
        m.appendReplacement(result, m.group(1) + "***masked***");
    }/*from   w  w w .java  2s  . c o  m*/
    m.appendTail(result);
    System.out.println(result);
}

From source file:Main.java

public static void main(String args[]) {
    String candidateString = "This is a test. This is another test";
    Pattern p = Pattern.compile("test");
    Matcher matcher = p.matcher(candidateString);

    // Find the starting point of the first 'test'
    matcher.find();// ww  w  .j  av  a2 s .com
    int startIndex = matcher.start();
    System.out.println(candidateString);
    System.out.println(startIndex);

    // Find the starting point of the second 'test'
    matcher.find();
    int nextIndex = matcher.start();
    System.out.println(candidateString);
    System.out.println(nextIndex);
}

From source file:TestRegularExpression.java

public static void main(String[] args) {
    if (args.length < 2) {
        System.out.println("Usage:\n" + "java TestRegularExpression " + "characterSequence regularExpression+");
        System.exit(0);/*from   w w  w  .  j  a  v a  2s. c om*/
    }
    System.out.println("Input: \"" + args[0] + "\"");
    for (int i = 1; i < args.length; i++) {
        System.out.println("Regular expression: \"" + args[i] + "\"");
        Pattern p = Pattern.compile(args[i]);
        Matcher m = p.matcher(args[0]);
        while (m.find()) {
            System.out.println("Match \"" + m.group() + "\" at positions " + m.start() + "-" + (m.end() - 1));
        }
    }
}

From source file:MainClass.java

public static void main(String args[]) {
    String str = "Java1 Java2 JDK Java2S Java2s.com";

    Pattern pat = Pattern.compile("Java.*? ");
    Matcher mat = pat.matcher(str);

    System.out.println("Original sequence: " + str);

    str = mat.replaceAll("Java ");

    System.out.println("Modified sequence: " + str);

}

From source file:FindA.java

public static void main(String args[]) throws Exception {

    String candidate = "A Matcher examines the results of applying a pattern.";

    String regex = "\\ba\\w*\\b";
    Pattern p = Pattern.compile(regex);

    Matcher m = p.matcher(candidate);
    String val = null;
    System.out.println("INPUT: " + candidate);

    System.out.println("REGEX: " + regex + "\r\n");

    while (m.find()) {
        val = m.group();
        System.out.println("MATCH: " + val);
    }//  www . j a v  a 2 s .c  o  m
    if (val == null) {
        System.out.println("NO MATCHES: ");
    }
}

From source file:Main.java

public static void main(String args[]) {
    Pattern pat = Pattern.compile("\\b\\w+@XYZ\\.com\\b");

    Matcher mat = pat.matcher("t@XYZ.com\n" + "a@XYZ.com\n" + "n@XYZ.com");

    while (mat.find())
        System.out.println("Match: " + mat.group());
}

From source file:Main.java

public static void main(String args[]) throws Exception {

    String candidate = "this is a test, A TEST.";

    String regex = "\\ba\\w*\\b";
    Pattern p = Pattern.compile(regex);

    Matcher m = p.matcher(candidate);
    String val = null;
    System.out.println("INPUT: " + candidate);

    System.out.println("REGEX: " + regex + "\r\n");

    while (m.find()) {
        val = m.group();
        System.out.println("MATCH: " + val);
    }//from  ww w .ja v  a  2 s  .  c  o m

    if (val == null) {
        System.out.println("NO MATCHES: ");
    }
}