Example usage for java.util.regex Pattern matcher

List of usage examples for java.util.regex Pattern matcher

  1. HOME
  2. Java
  3. java
  4. java.util.regex.*
  5. Pattern
  6. 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:MatcherLookingAtExample.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("J2SE");

    String candidateString_1 = "J2SE is the only one for me";
    String candidateString_2 = "For me, it's J2SE, or nothing at all";
    String candidateString_3 = "J2SEistheonlyoneforme";

    Matcher matcher = p.matcher(candidateString_1);

    String msg = ":" + candidateString_1 + ": matches?: ";
    System.out.println(msg + matcher.lookingAt());
    matcher.reset(candidateString_2);/*from   w  w  w . ja v a 2  s .co  m*/

    msg = ":" + candidateString_2 + ": matches?: ";
    System.out.println(msg + matcher.lookingAt());

    matcher.reset(candidateString_3);

    msg = ":" + candidateString_3 + ": matches?: ";
    System.out.println(msg + matcher.lookingAt());

}

From source file:MainClass.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("B(on)d");

    String candidateString = "My name is Bond. James Bond.";
    String matchHelper[] = { "               ^", "              ^", "                           ^",
            "                          ^" };
    Matcher matcher = p.matcher(candidateString);
    // Find the end point of the first 'B(ond)'
    matcher.find();/*from  ww w . j av  a 2  s.  co m*/
    int endIndex = matcher.end(0);
    System.out.println(candidateString);
    System.out.println(matchHelper[0] + endIndex);

}

From source file:MainClass.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("B(on)d");

    String candidateString = "My name is Bond. James Bond.";
    String matchHelper[] = { "               ^", "              ^", "                           ^",
            "                          ^" };
    Matcher matcher = p.matcher(candidateString);
    matcher.find();/*  w w w  .ja va2  s.  com*/
    //  find the end point of the first sub group (ond)
    int nextIndex = matcher.end(1);
    System.out.println(candidateString);
    System.out.println(matchHelper[1] + nextIndex);

}

From source file:MainClass.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("B(on)d");

    String candidateString = "My name is Bond. James Bond.";
    String matchHelper[] = { "               ^", "              ^", "                           ^",
            "                          ^" };
    Matcher matcher = p.matcher(candidateString);

    // find the end point of the second sub group (ond)
    int nextIndex = matcher.end(1);
    System.out.println(candidateString);
    System.out.println(matchHelper[3] + nextIndex);

}

From source file:MainClass.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("B(on)d");

    String candidateString = "My name is Bond. James Bond.";
    String matchHelper[] = { "               ^", "              ^", "                           ^",
            "                          ^" };
    Matcher matcher = p.matcher(candidateString);

    // Find the end point of the second 'B(ond)'
    matcher.find();//from  w  w  w. ja v  a  2  s.c  om
    int endIndex = matcher.end(0);
    System.out.println(candidateString);
    System.out.println(matchHelper[2] + endIndex);

}

From source file:Main.java

public static void main(String[] args) {
    Pattern pattern = null;
    Matcher matcher = null;/*  w w w  .ja va 2  s.c  o m*/

    Console console = System.console();
    while (true) {
        try {
            pattern = Pattern.compile(console.readLine("%nEnter your regex: "));

            matcher = pattern.matcher(console.readLine("Enter input string to search: "));
        } catch (PatternSyntaxException pse) {
            console.format("There is a problem with the regular expression!%n");
            console.format("The pattern in question is: %s%n", pse.getPattern());
            console.format("The description is: %s%n", pse.getDescription());
            console.format("The message is: %s%n", pse.getMessage());
            console.format("The index is: %s%n", pse.getIndex());
            System.exit(0);
        }
        boolean found = false;
        while (matcher.find()) {
            console.format("I found the text \"%s\" starting at " + "index %d and ending at index %d.%n",
                    matcher.group(), matcher.start(), matcher.end());
            found = true;
        }
        if (!found) {
            console.format("No match found.%n");
        }
    }
}

From source file:MatcherStartParamExample.java

public static void main(String args[]) {
    Pattern p = Pattern.compile("B(ond)");

    String candidateString = "My name is Bond. James Bond.";
    String matchHelper[] = { "          ^", "           ^", "                      ^",
            "                       ^" };
    Matcher matcher = p.matcher(candidateString);
    matcher.find();/*from   w  w w .j a  v  a2s  .c o  m*/
    int startIndex = matcher.start(0);
    System.out.println(candidateString);
    System.out.println(matchHelper[0] + startIndex);

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

    matcher.find();
    startIndex = matcher.start(0);
    System.out.println(candidateString);
    System.out.println(matchHelper[2] + startIndex);

    nextIndex = matcher.start(1);
    System.out.println(candidateString);
    System.out.println(matchHelper[3] + nextIndex);

}

From source file:edu.uci.mhlee.BasicCrawler.java

public static void main(String[] args) {
    String href = "http://aaaa/?alskdjfalk=10";
    String[] aaa = href.split("(\\?.*)?$");
    System.out.println(aaa[0]);/*www  . ja v a 2s.co  m*/
    System.out.println(aaa.length);
    Pattern URL_QUERY = Pattern.compile(".*\\.(\\?.*)?$");
    System.out.println(URL_QUERY.matcher(href).matches());
    System.out.println(href.contains("?"));
}

From source file:PositiveLookBehindExample.java

public static void main(String args[]) throws Exception {
    String regex = "(?<=http://)\\S+";
    Pattern pattern = Pattern.compile(regex);

    String candidate = "The Java2s website can be found at ";
    candidate += "http://www.java2s.com. There, ";
    candidate += "you can find information about some of ";
    candidate += "best example codes";

    Matcher matcher = pattern.matcher(candidate);
    while (matcher.find()) {
        String msg = ":" + matcher.group() + ":";
        System.out.println(msg);//from  w  w w. ja v a 2  s  .c  om
    }
}

From source file:com.payne.test.StringTest.java

public static void main(String[] args) throws IOException {
    //        String a = "160504185452148809-1";
    //        a = a.split("-")[0];
    //        System.out.println(a);
    //        Random r = new Random();
    //        long a = 0l;
    //        for(int i=0;i<10000;i++){
    //            a = r.nextInt(5001) + 5000;
    //            if(a==5000){
    //                System.out.println(a);
    //            }
    //        }//from  w ww  .j a va2 s . c  om

    /**
     * ????
     */
    //        List<Integer> numberList = new ArrayList<>();
    //        numberList.add(1);
    //        numberList.add(2);
    //        Integer[] numbers = numberList.toArray(new Integer[numberList.size()]);
    ////        int[] numbers = new int[]{1,2};
    //        
    //        System.out.println(new Integer[]{}.length==0?0:1);
    //        
    //        Student s =  new Student();
    //        s.sumUp(new Integer[]{}.length==0?numbers:new Integer[]{1});
    //        s.sumUp(numbers);
    //        Parent p = null;
    //        Parent p2 = new Parent(new Student(5));
    //
    //        Student s = new Student();
    //        p = s.print(p);

    //        System.out.println(p==null?0:1);
    //        System.out.println(p.getAge());
    //        System.out.println(p.getStudent().getAge());
    //        int ai = 0;
    //        for(int i=0;i<2;i++){
    //            int b = 0;
    //            int b_grow = 0;
    //            for(int j=0;j<5;j++){
    //                b += new Random().nextInt(5);
    //            }
    //            
    //        }
    //        
    //        
    //        System.out.println(UUID.randomUUID().toString());

    //        int a = 1;
    //        a = doAdd(a);
    //        System.out.println(a);
    Pattern p = Pattern.compile("^\\d{1,9}(.\\d{1,2})?$");
    Matcher m = p.matcher("666666541.13");
    boolean b = m.matches();
    System.out.println(b);
    //          System.out.println(-2>>4);
    //        BigDecimal b = new BigDecimal(100.50);
    //        System.out.println(b.toString());
    // indexOf   ??
    //        String a = "?";
    //        
    //        String[] split = a.split("?");
    //        if(a.indexOf("?")>-1){
    //            System.out.println("111");
    //        }
    //        for(String s: split){
    //            System.out.println(s);
    //        }
    //        MapTestObject mto = new MapTestObject();
    //        mto.setOrderType(OrderType.TWO);
    //        
    //        String str = "\":\"";
    //        System.out.println(str);
    //        String a = ",";
    ////
    //        String[] splits = a.split(".");
    //        List<String> asList = Arrays.asList(splits);

    //        String last = "";
    //        String last = "";
    //        String last = "";
    //        if (!asList.isEmpty()) {
    //            if (asList.indexOf(last) > -1) {
    //                int indexOf = asList.indexOf(last);
    //                if (indexOf + 1 >= asList.size()) {
    //                    System.out.println("?");
    //                }else{
    //                    String next = asList.get(indexOf + 1);
    //                    if (OTHERStringUtils.isEmpty(next)) {
    //                        System.out.println("?");
    //                    } else {
    //                        System.out.println("?" + next);
    //                    }
    //                }
    //            } else {
    //                System.out.println("?");
    //            }
    //        } else {
    //            System.out.println("??");
    //        }

    //           System.out.println("?\",\""); 
    //           String a ="1123";
    //           a = StringUtils.substring(a, 0, a.length()-1);
    //           System.out.println("a="+a);
    //           
    int a = 0x12345678;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    dos.writeInt(a);
    System.out.println(Integer.toHexString(a));
    byte[] c = baos.toByteArray();
    for (int i = 0; i < 4; i++) {
        System.out.println(Integer.toHexString(c[i]));
    }
}