Example usage for java.util.regex Pattern compile

Introduction

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

Prototype

public static Pattern compile(String regex)

Source Link

Document

Compiles the given regular expression into a pattern.

Usage

From source file:MainClass.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);

    // Find the starting point of the first 'Bond'
    matcher.find();//from   w  w  w  .j  a  v  a 2s. co  m
    int startIndex = matcher.start();
    System.out.println(candidateString);
    System.out.println(matchHelper[0] + startIndex);

}

From source file:Main.java

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

    CharSequence inputStr = "a b";
    String patternStr = "a b";

    // Compile without comments
    Pattern pattern = Pattern.compile(patternStr);
    Matcher matcher = pattern.matcher(inputStr);
    boolean matchFound = matcher.matches();

    // Compile with comments
    pattern = Pattern.compile(patternStr, Pattern.COMMENTS);
    matcher = pattern.matcher(inputStr);
    matchFound = matcher.matches(); // false

    // Use an inline modifier
    matchFound = pattern.matches("(?x)a \\s b", inputStr);

}

From source file:Main.java

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

    CharSequence inputStr = "a b";
    String patternStr = "a b";

    // Compile without comments
    Pattern pattern = Pattern.compile(patternStr);
    Matcher matcher = pattern.matcher(inputStr);
    boolean matchFound = matcher.matches();

    // Compile with comments
    pattern = Pattern.compile(patternStr, Pattern.COMMENTS);
    matcher = pattern.matcher(inputStr);
    matchFound = matcher.matches(); // false

    // Use an inline modifier

    matchFound = pattern.matches("a (?x:  b   )", inputStr);
}

From source file:MainClass.java

public static void main(String args[]) {
    Pattern pat;//  w  w  w.ja v  a  2s  .  c  o  m
    Matcher mat;
    boolean found;

    pat = Pattern.compile("Java");
    mat = pat.matcher("Java");

    found = mat.matches();

    if (found)
        System.out.println("Matches");
    else
        System.out.println("No Match");

    System.out.println();

    mat = pat.matcher("Java 2");

    found = mat.matches();

    if (found)
        System.out.println("Matches");
    else
        System.out.println("No Match");
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 true ";

    Scanner scanner = new Scanner(s);

    // skip the word that matches the pattern .com
    scanner.skip(Pattern.compile(".com"));

    System.out.println(scanner.nextLine());

    scanner.close();//  w  w w  . ja  v  a2 s.c om
}

From source file:Main.java

public static void main(String[] args) {
    // A group of 3 digits followed by 7 digits.
    String regex = "\\b(\\d{3})\\d{7}\\b";

    // Compile the regular expression
    Pattern p = Pattern.compile(regex);

    String source = "12345678, 12345, and 9876543210";

    // Get the Matcher object
    Matcher m = p.matcher(source);

    // Start matching and display the found area codes
    while (m.find()) {
        String phone = m.group();
        String areaCode = m.group(1);
        System.out.println("Phone: " + phone + ", Area  Code:  " + areaCode);
    }//from  w  ww  . j a  v a  2  s .  c  o  m
}

From source file:Main.java

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

    String inputStr = "abbabcd";
    String patternStr = "(a(?:b*))+(c*)";
    // (?:b*) is a non-capturing group

    Pattern pattern = Pattern.compile(patternStr);
    Matcher matcher = pattern.matcher(inputStr);
    boolean matchFound = matcher.find();

    if (matchFound) {
        for (int i = 0; i <= matcher.groupCount(); i++) {
            String groupStr = matcher.group(i);
        }/*from w w  w.  j  a v  a  2 s . co  m*/
    }
}

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);
    }/*from www  . j ava2 s . c  om*/
    if (val == null) {
        System.out.println("NO MATCHES: ");
    }
}

From source file:Resetting.java

public static void main(String[] args) throws Exception {
    Matcher m = Pattern.compile("[frb][aiu][gx]").matcher("fix the rug with bags");
    while (m.find())
        System.out.println(m.group());
    m.reset("fix the rig with rags");
    while (m.find())
        System.out.println(m.group());
}

From source file:Main.java

public static void main(String[] args) {
    String regex = "\\b(?<areaCode>\\d{3})(?<prefix>\\d{3})(?<postPhoneNumber>\\d{4})\\b";
    String source = "1234567890, 12345, and 9876543210";
    Pattern p = Pattern.compile(regex);

    Matcher m = p.matcher(source);
    while (m.find()) {
        String matchedText = m.group();
        int start1 = m.start("areaCode");
        int start2 = m.start("prefix");
        int start3 = m.start("postPhoneNumber");
        System.out.println("Matched Text:" + matchedText);
        System.out.println("Area code start:" + start1);
        System.out.println("Prefix start:" + start2);
        System.out.println("Line Number start:" + start3);
    }/*from   www.  j a v  a 2  s  .  c om*/
}