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

License:asdf

public static void main(String args[]) {
    String regex = "\\w+";
    Pattern pattern = Pattern.compile(regex);

    String candidate = "asdf Java2s.com";

    Matcher matcher = pattern.matcher(candidate);

    if (matcher.find()) {
        System.out.println("GROUP 0:" + matcher.group(0));
    }/*  w ww .ja  v a 2s.co  m*/

}

From source file:SimpleSubGroupExample.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("\\w(\\d)");
    String candidate = "J9 is my favorite";

    Matcher matcher = p.matcher(candidate);
    if (matcher.find()) {
        String tmp = matcher.group(0);
        System.out.println(tmp);/*from  w ww  .  j  av  a 2  s. c o  m*/

        tmp = matcher.group(1);
        System.out.println(tmp);
    }
}

From source file:Main.java

public static void main(String[] args) {
    String regex = "[a-z]@.";
    Pattern p = Pattern.compile(regex);
    String str = "abc@yahoo.com,123@cnn.com,abc@google.com";
    Matcher m = p.matcher(str);

    if (m.find()) {
        String foundStr = m.group();
        System.out.println("Found text is:" + foundStr);
    }//from w  w w .  j av  a  2 s  .  c  om
}

From source file:GreedyExample.java

public static void main(String args[]) {
    String regex = "(\\w+)(\\d\\d)(\\w+)";

    Pattern pattern = Pattern.compile(regex);

    String candidate = "X99SuperJava";

    Matcher matcher = pattern.matcher(candidate);

    matcher.find();/*from   w  w  w.  ja v  a2 s  . com*/

    System.out.println(matcher.group(1));
    System.out.println(matcher.group(2));
    System.out.println(matcher.group(3));
}

From source file:ReplaceDemo.java

public static void main(String[] argv) {

    // Make an RE pattern to match almost any form (deamon, demon, etc.).
    String patt = "d[ae]{1,2}mon"; // i.e., 1 or 2 'a' or 'e' any combo

    // A test input.
    String input = "Unix hath demons and deamons in it!";
    System.out.println("Input: " + input);

    // Run it from a RE instance and see that it works
    Pattern r = Pattern.compile(patt);
    Matcher m = r.matcher(input);
    System.out.println("ReplaceAll: " + m.replaceAll("daemon"));

    // Show the appendReplacement method
    m.reset();/*from   ww w .  j  a  v  a 2 s  . c o  m*/
    StringBuffer sb = new StringBuffer();
    System.out.print("Append methods: ");
    while (m.find()) {
        m.appendReplacement(sb, "daemon"); // Copy to before first match,
        // plus the word "daemon"
    }
    m.appendTail(sb); // copy remainder
    System.out.println(sb.toString());
}

From source file:NLMatch.java

public static void main(String[] argv) {

    String input = "I dream of engines\nmore engines, all day long";
    System.out.println("INPUT: " + input);
    System.out.println();/*from   www .  java  2 s  .c o  m*/

    String[] patt = { "engines.more engines", "engines$" };

    for (int i = 0; i < patt.length; i++) {
        System.out.println("PATTERN " + patt[i]);

        boolean found;
        Pattern p1l = Pattern.compile(patt[i]);
        found = p1l.matcher(input).find();
        System.out.println("DEFAULT match " + found);

        Pattern pml = Pattern.compile(patt[i], Pattern.DOTALL | Pattern.MULTILINE);
        found = pml.matcher(input).find();
        System.out.println("MultiLine match " + found);
        System.out.println();
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String patternStr = "\\((\\w+)\\)";
    String replaceStr = "<$1>";
    Pattern pattern = Pattern.compile(patternStr);

    CharSequence inputStr = "a (b c) d (ef) g";
    Matcher matcher = pattern.matcher(inputStr);
    String output = matcher.replaceAll(replaceStr);

}

From source file:PositiveLookaheadExample.java

public static void main(String args[]) {
    String regex = "(?=^255).*";

    Pattern pattern = Pattern.compile(regex);

    String candidate = "255.0.0.1";

    Matcher matcher = pattern.matcher(candidate);

    String ip = "not found";

    if (matcher.find())
        ip = matcher.group();/*from w ww  .  ja  va  2 s .co m*/

    String msg = "ip: " + ip;

    System.out.println(msg);
}

From source file:Main.java

public static void main(String[] args) {
    String regex = "\\b(\\d{3})(\\d{3})(\\d{4})\\b";

    Pattern p = Pattern.compile(regex);
    String source = "1234567890, 12345,  and  9876543210";

    Matcher m = p.matcher(source);

    while (m.find()) {
        System.out.println("Phone: " + m.group() + ", Formatted Phone:  (" + m.group(1) + ") " + m.group(2)
                + "-" + m.group(3));
    }/*from   ww w  .j  a v a  2 s .c  o m*/
}

From source file:MainClass.java

public static void main(String args[]) {
    String regex = "(\\w+)(\\d\\d)(\\w+)";

    Pattern pattern = Pattern.compile(regex);

    String candidate = "AAA99SuperJava";

    Matcher matcher = pattern.matcher(candidate);

    matcher.find();//from  w ww. j  a v a 2s  .  c  o m

    System.out.println(matcher.group(1));
    System.out.println(matcher.group(2));
    System.out.println(matcher.group(3));
}