Example usage for java.lang Character isDigit

Introduction

In this page you can find the example usage for java.lang Character isDigit.

Prototype

public static boolean isDigit(int codePoint) 

Source Link

Document

Determines if the specified character (Unicode code point) is a digit.

Usage

From source file:ai.susi.mind.SusiPhrase.java

public static String extractMeat(String expression) {
    if (isRegularExpression(expression))
        return ""; // the meatsize of a regular expression is zero
    StringBuffer sb = new StringBuffer();
    for (int i = 0; i < expression.length(); i++) {
        char c = expression.charAt(i);
        if (Character.isLetter(c) || Character.isDigit(c) || c == ' ')
            sb.append(c);//  ww w  .jav a  2  s.co  m
    }
    return sb.toString();
}

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From source file:edu.chalmers.dat076.moviefinder.service.TitleParser.java

public int checkForYear(CharSequence cs) {
    int year = 0;
    if (cs.length() == 4) {

        for (int i = 0; i < 4; i++) {
            if (Character.isDigit(cs.charAt(i))) {
                year = year * 10;/*w w w.j  ava 2  s.  c o  m*/
                year = year + Character.getNumericValue(cs.charAt(i));
            } else {
                return -1;
            }
        }
    }
    return year;
}

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From source file:net.jimj.automaton.commands.QuoteCommand.java

protected boolean isMetaWord(String word) {
    if (StringUtils.isBlank(word)) {
        return false;
    }//from  w w w .  j av a 2  s . co m
    return !(Character.isAlphabetic(word.codePointAt(0)) || Character.isDigit(word.codePointAt(0)));
}

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From source file:com.microsoft.tfs.util.FileHelpers.java

/**
 * Check if the specified name is in the list of reserved NTFS names.
 *
 * @param name/*  w  ww. j a  v a2 s.  co  m*/
 *        the file name to check
 * @return true if name is a reserved NTFS file name
 */
public static boolean isReservedName(final String name) {
    /*
     * This method gets called *often* and is written for speed, even to the
     * point of being fragile with respect to changes to the reservedNames
     * and reservedNamesLength3 lists. Changes to the list of reserved names
     * will likely require code changes here.
     */

    // LPT1 -> LPT9, COM1 -> COM9 are reserved names.
    // LPT0 and COM0 are NOT reserved names.
    if (name.length() == 4 && Character.isDigit(name.charAt(3)) && name.charAt(3) != '0') {
        final String firstThree = name.substring(0, 3);
        if (firstThree.equalsIgnoreCase("LPT") || firstThree.equalsIgnoreCase("COM")) //$NON-NLS-1$ //$NON-NLS-2$
        {
            return true;
        }
    }

    // All of the strings in reservedNamesLength3 are length 3.
    if (name.length() == 3) {
        for (int i = 0; i < RESERVED_NAMES_LENGTH3.length; i++) {
            if (name.equalsIgnoreCase(RESERVED_NAMES_LENGTH3[i])) {
                return true;
            }
        }
    }

    return false;
}

---

From source file:com.portmods.handlers.crackers.dictionary.Wordlist.java

@Override
public void run() {

    try {/* w ww  . ja  v a  2  s .  co  m*/

        System.out.println("Loading Dictionary");

        InputStream fileStream = null;

        if (config.getUseCustomDictionary()) {

            try {

                fileStream = new FileInputStream(config.getCustomDictionary());

            } catch (Exception e) {

                JOptionPane.showMessageDialog(null, e, "Error with Dictonary File.", JOptionPane.ERROR_MESSAGE);
                System.exit(1);

            }

        } else {

            fileStream = Main.class.getResourceAsStream("/com/portmods/files/words.txt");

        }

        BufferedReader reader = new BufferedReader(new InputStreamReader(fileStream, "UTF-8"));

        /* declaring storage list */
        wordlist = new ArrayList<String>();
        String text = "";

        String line = reader.readLine();

        while (line != null) //wait for ever
        {
            text = line;
            line = reader.readLine();
            if (text.length() < 9 && text.length() > 2) {
                wordlist.add(text);
            }

        }

    } catch (UnsupportedEncodingException e) {

        System.out.println("Error Loading Dictionary");

    } catch (IOException e) {

        System.out.println("Error Loading Dictionary");

    }

    System.out.println("Finished Loading Dictionary");
    System.out.println("Rule 1 : Do nothing to word");

    for (String s : wordlist) {

        String hash = UnixCrypt.crypt(s, "aa");

        for (User u : pw.getUsers()) {

            if (u.getHash().equals(hash)) {

                System.out.println("Found password " + s + " for user " + u.getUserName());
                fp.addPassword(u.getUserName(), s);

            }

        }

    }

    System.out.println("Rule 2 : Toggle case of every character");
    /* Chaning word characters one at time lowerecase to Uppercase and vice Veser. */
    for (String s : wordlist) {
        for (int i = 0; i < s.length(); i++) {
            char C = s.charAt(i); //take character from the word
            StringBuilder sbuilder = new StringBuilder(s); //word we want to inject the character into
            if (Character.isUpperCase(C)) {
                sbuilder.setCharAt(i, Character.toLowerCase(C)); //changing the character to lowercase

            } else if (Character.isLowerCase(C)) {
                sbuilder.setCharAt(i, Character.toUpperCase(C)); // change to uppercase
            }

            String hash = UnixCrypt.crypt(sbuilder.toString(), "aa");

            for (User u : pw.getUsers()) {

                if (u.getHash().equals(hash)) {

                    System.out
                            .println("Found password " + sbuilder.toString() + " for user " + u.getUserName());
                    fp.addPassword(u.getUserName(), sbuilder.toString());

                }

            }

        }

    }

    System.out.println("Rule 3 : adding random numbers and leters into the word");
    /* generating number and adding to the words*/
    for (String s : wordlist) {
        for (int i = 0; i < 10; i++) {
            StringBuilder sb = new StringBuilder(s);
            sb.append(i); //add an integer to each word.

            String out = sb.toString();

            if (out.length() <= 8) {

                String hash = UnixCrypt.crypt(out, "aa");

                for (User u : pw.getUsers()) {

                    if (u.getHash().equals(hash)) {

                        System.out.println("Found password " + sb.toString() + " for user " + u.getUserName());
                        fp.addPassword(u.getUserName(), sb.toString());

                    }

                }

            }

        }

    }

    System.out.println("Rule 4: Toggle one charater at a time and replace a number");
    /* trying to toggle one charater at a time and replace a number*/
    for (String s : wordlist) {
        for (int j = 0; j < s.length(); j++) {
            for (int i = 0; i < 10; i++) {
                char C = s.charAt(j); //take character from the word
                StringBuilder sbuilder = new StringBuilder(s); //word we want to inject the character into
                if (Character.isAlphabetic(C)) {
                    sbuilder.deleteCharAt(j); //remove character
                    sbuilder.insert(j, i); // add digit

                    String hash = UnixCrypt.crypt(sbuilder.toString(), "aa");

                    for (User u : pw.getUsers()) {

                        if (u.getHash().equals(hash)) {

                            System.out.println(
                                    "Found password " + sbuilder.toString() + " for user " + u.getUserName());
                            fp.addPassword(u.getUserName(), sbuilder.toString());

                        }

                    }
                }

            }

            for (int x = 65; x < 123; x++) {
                char C1 = (char) x;

                char C = s.charAt(j); //take character from the word
                StringBuilder sbuilder = new StringBuilder(s); //word we want to inject the character into
                if (Character.isDigit(C)) {
                    sbuilder.setCharAt(j, C1);

                    String hash = UnixCrypt.crypt(sbuilder.toString(), "aa");

                    for (User u : pw.getUsers()) {

                        if (u.getHash().equals(hash)) {

                            System.out.println(
                                    "Found password " + sbuilder.toString() + " for user " + u.getUserName());
                            fp.addPassword(u.getUserName(), sbuilder.toString());

                        }

                    }

                }

            }

        }

    }

    System.out.println("Rule 5 : Adding random letters and numbers to the end");
    /* adding ascii values to a text string */

    for (String s : wordlist) {
        int x = 1;
        StringBuilder sb = new StringBuilder(s);
        for (int i = 33; i < 123; i++) {
            char L1 = (char) i;
            String out = sb.toString();

            String out1 = out + L1;

            if (out1.length() > 8) {

                break;

            } else {

                String hash = UnixCrypt.crypt(out1, "aa");

                for (User u : pw.getUsers()) {

                    if (u.getHash().equals(hash)) {

                        System.out.println("Found password " + out1 + " for user " + u.getUserName());
                        fp.addPassword(u.getUserName(), out1);

                    }

                }

            }

            for (int j = 33; j < 123; j++) {
                char L2 = (char) j;

                String out2 = out + L1 + L2;

                if (out2.length() > 8) {

                    break;

                } else {

                    String hash = UnixCrypt.crypt(out2, "aa");

                    for (User u : pw.getUsers()) {

                        if (u.getHash().equals(hash)) {

                            System.out.println("Found password " + out2 + " for user " + u.getUserName());
                            fp.addPassword(u.getUserName(), out2);

                        }

                    }

                }

                for (int k = 33; k < 123; k++) {
                    char L3 = (char) k;

                    String out3 = out + L1 + L2 + L3;

                    if (out3.length() > 8) {

                        break;

                    } else {

                        String hash = UnixCrypt.crypt(out3, "aa");

                        for (User u : pw.getUsers()) {

                            if (u.getHash().equals(hash)) {

                                System.out.println("Found password " + out3 + " for user " + u.getUserName());
                                fp.addPassword(u.getUserName(), out3);

                            }

                        }

                    }
                    for (int l = 33; l < 123; l++) {
                        char L4 = (char) l;

                        String out4 = out + L1 + L2 + L3 + L4;

                        if (out4.length() > 8) {

                            break;

                        } else {

                            String hash = UnixCrypt.crypt(out4, "aa");

                            for (User u : pw.getUsers()) {

                                if (u.getHash().equals(hash)) {

                                    System.out
                                            .println("Found password " + out4 + " for user " + u.getUserName());
                                    fp.addPassword(u.getUserName(), out4);

                                }

                            }

                        }
                    }
                }
            }
            if (out.length() < 8) {

            } else {

                System.out.println(out);
                break;
            }
        }
    }

    config.setDicModeFin(true);

}

---

From source file:com.squarespace.template.GeneralUtils.java

/**
 * Indicates if the string consists of all digits.
 *///w  w w.  j  av  a2  s .  co m
private static boolean allDigits(String str) {
    for (int i = 0, len = str.length(); i < len; i++) {
        if (!Character.isDigit(str.charAt(i))) {
            return false;
        }
    }
    return true;
}

---

From source file:com.legstar.pli2cob.util.CobolNameResolver.java

/**
 * Determines if this is a valid first character in a cobol word.
 * @param c the character to check// w w  w  .  j ava 2 s. c o m
 * @return true if this is a valid first character
 */
private boolean isValidFirst(final char c) {
    if (c == '-' || Character.isDigit(c)) {
        return false;
    }
    return true;
}

---

From source file:io.github.seleniumquery.utils.SelectorUtils.java

/**
 * Escapes a CSS identifier./* ww w  .ja v  a  2s  .  c om*/
 * 
 * Future references for CSS escaping:
 * http://mathiasbynens.be/notes/css-escapes
 * http://mothereff.in/css-escapes
 * https://github.com/mathiasbynens/mothereff.in/blob/master/css-escapes/eff.js
 *
 * @param unescapedSelector The CSS selector to escape
  * @return The CSS selector escaped
 */
public static String escapeSelector(String unescapedSelector) {
    String escapedSelector = unescapedSelector;
    if (Character.isDigit(unescapedSelector.charAt(0))) {
        escapedSelector = "\\\\3" + unescapedSelector.charAt(0) + " " + escapedSelector.substring(1);
    }
    escapedSelector = escapedSelector.replace(":", "\\:");
    if (escapedSelector.charAt(0) == '-') {
        if (escapedSelector.length() == 1 || (escapedSelector.length() > 1
                && (Character.isDigit(escapedSelector.charAt(1)) || escapedSelector.charAt(1) == '-'))) {
            escapedSelector = "\\" + escapedSelector;
        }
    }
    return escapedSelector;
}

---

From source file:org.carewebframework.common.StrUtil.java

/**
 * Extracts an integer portion at the beginning of a string. Parsing stops when a non-digit
 * character or the end of the string is encountered.
 * /* w ww  . j a va 2 s.c o  m*/
 * @param value String value to parse
 * @return The integer prefix (as a string) of the parsed string.
 */
public static String extractIntPrefix(String value) {
    int pos = 0;

    if (StringUtils.isEmpty(value)) {
        return "";
    }

    if (value.startsWith("+") || value.startsWith("-")) {
        pos++;
    }

    while (pos < value.length()) {
        if (Character.isDigit(value.charAt(pos))) {
            pos++;
        } else {
            break;
        }
    }

    return value.substring(0, pos);
}

---

From source file:edu.cwru.apo.Directory.java

private String removeNonDigits(String phoneNumber) {
    StringBuilder ans = new StringBuilder();
    char currentChar;
    for (int i = 0; i < phoneNumber.length(); ++i) {
        currentChar = phoneNumber.charAt(i);
        if (Character.isDigit(currentChar)) {
            ans.append(currentChar);/*  w w  w .  jav a 2 s  .c  o m*/
        }
    }
    return ans.toString();
}

---

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