Example usage for java.util BitSet BitSet

Introduction

In this page you can find the example usage for java.util BitSet BitSet.

Prototype

public BitSet() 

Source Link

Document

Creates a new bit set.

Usage

From source file:BitOHoney.java

public static void main(String args[]) {
    String names[] = { "Java", "Source", "and", "Support" };
    BitSet bits = new BitSet();
    for (int i = 0, n = names.length; i < n; i++) {
        if ((names[i].length() % 2) == 0) {
            bits.set(i);//from   ww w.  j  av a2s . c  om
        }
    }
    System.out.println(bits);
    System.out.println("Size : " + bits.size());
    System.out.println("Length: " + bits.length());
    for (int i = 0, n = names.length; i < n; i++) {
        if (!bits.get(i)) {
            System.out.println(names[i] + " is odd");
        }
    }
    BitSet bites = new BitSet();
    bites.set(0);
    bites.set(1);
    bites.set(2);
    bites.set(3);
    bites.andNot(bits);
    System.out.println(bites);
}

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From source file:NumSeries.java

public static void main(String[] args) {
    for (int i = 1; i <= months.length; i++)
        System.out.println("Month # " + i);

    for (int i = 0; i < months.length; i++)
        System.out.println("Month " + months[i]);

    BitSet b = new BitSet();
    b.set(0); // January
    b.set(3); // April

    for (int i = 0; i < months.length; i++) {
        if (b.get(i))
            System.out.println("Month " + months[i] + " requested");
    }//from w  w  w.ja  v  a  2  s . co m
}

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From source file:BitOHoney1.java

public static void main(String args[]) {
    String names[] = { "Hershey's Kisses", "Nestle's Crunch", "Snickers", "3 Musketeers", "Milky Way", "Twix",
            "Mr. Goodbar", "Crunchie", "Godiva", "Charleston Chew", "Cadbury's", "Lindt", "Aero", "Hebert",
            "Toberlone", "Smarties", "LifeSavers", "Riesen", "Goobers", "Raisenettes", "Nerds", "Tootsie Roll",
            "Sweet Tarts", "Cotton Candy" };
    BitSet bits = new BitSet();
    for (int i = 0, n = names.length; i < n; i++) {
        if ((names[i].length() % 2) == 0) {
            bits.set(i);//from   www  .j a v  a  2 s .co  m
        }
    }
    System.out.println(bits);
    System.out.println("Size  : " + bits.size());
    System.out.println("Length: " + bits.length());
    for (int i = 0, n = names.length; i < n; i++) {
        if (!bits.get(i)) {
            System.out.println(names[i] + " is odd");
        }
    }
    BitSet bites = new BitSet();
    bites.set(0);
    bites.set(1);
    bites.set(2);
    bites.set(3);
    bites.andNot(bits);
    System.out.println(bites);
}

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From source file:examples.mail.IMAPImportMbox.java

public static void main(String[] args) throws IOException {
    if (args.length < 2) {
        System.err.println(//from   w  w  w. j a v a2s . c o m
                "Usage: IMAPImportMbox imap[s]://user:password@host[:port]/folder/path <mboxfile> [selectors]");
        System.err.println("\tWhere: a selector is a list of numbers/number ranges - 1,2,3-10"
                + " - or a list of strings to match in the initial From line");
        System.exit(1);
    }

    final URI uri = URI.create(args[0]);
    final String file = args[1];

    final File mbox = new File(file);
    if (!mbox.isFile() || !mbox.canRead()) {
        throw new IOException("Cannot read mailbox file: " + mbox);
    }

    String path = uri.getPath();
    if (path == null || path.length() < 1) {
        throw new IllegalArgumentException("Invalid folderPath: '" + path + "'");
    }
    String folder = path.substring(1); // skip the leading /

    List<String> contains = new ArrayList<String>(); // list of strings to find
    BitSet msgNums = new BitSet(); // list of message numbers

    for (int i = 2; i < args.length; i++) {
        String arg = args[i];
        if (arg.matches("\\d+(-\\d+)?(,\\d+(-\\d+)?)*")) { // number,m-n
            for (String entry : arg.split(",")) {
                String[] parts = entry.split("-");
                if (parts.length == 2) { // m-n
                    int low = Integer.parseInt(parts[0]);
                    int high = Integer.parseInt(parts[1]);
                    for (int j = low; j <= high; j++) {
                        msgNums.set(j);
                    }
                } else {
                    msgNums.set(Integer.parseInt(entry));
                }
            }
        } else {
            contains.add(arg); // not a number/number range
        }
    }
    //        System.out.println(msgNums.toString());
    //        System.out.println(java.util.Arrays.toString(contains.toArray()));

    // Connect and login
    final IMAPClient imap = IMAPUtils.imapLogin(uri, 10000, null);

    int total = 0;
    int loaded = 0;
    try {
        imap.setSoTimeout(6000);

        final BufferedReader br = new BufferedReader(new FileReader(file)); // TODO charset?

        String line;
        StringBuilder sb = new StringBuilder();
        boolean wanted = false; // Skip any leading rubbish
        while ((line = br.readLine()) != null) {
            if (line.startsWith("From ")) { // start of message; i.e. end of previous (if any)
                if (process(sb, imap, folder, total)) { // process previous message (if any)
                    loaded++;
                }
                sb.setLength(0);
                total++;
                wanted = wanted(total, line, msgNums, contains);
            } else if (startsWith(line, PATFROM)) { // Unescape ">+From " in body text
                line = line.substring(1);
            }
            // TODO process first Received: line to determine arrival date?
            if (wanted) {
                sb.append(line);
                sb.append(CRLF);
            }
        }
        br.close();
        if (wanted && process(sb, imap, folder, total)) { // last message (if any)
            loaded++;
        }
    } catch (IOException e) {
        System.out.println(imap.getReplyString());
        e.printStackTrace();
        System.exit(10);
        return;
    } finally {
        imap.logout();
        imap.disconnect();
    }
    System.out.println("Processed " + total + " messages, loaded " + loaded);
}

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From source file:Main.java

public static BitSet bitSetOfIndexes(int... indexes) {
    BitSet bitSet = new BitSet();
    for (int index : indexes) {
        bitSet.set(index);/* w  ww.  j a  va2 s. c om*/
    }
    return bitSet;
}

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From source file:Main.java

public static BitSet fromByteArray(byte[] bytes) {
    BitSet bits = new BitSet();
    for (int i = 0; i < bytes.length * 8; i++) {
        if ((bytes[bytes.length - i / 8 - 1] & (1 << (i % 8))) > 0) {
            bits.set(i);//from w  w w .  ja va  2 s .  c o  m
        }
    }
    return bits;
}

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From source file:Main.java

public static byte[] unencodedSeptetsToEncodedSeptets(byte[] septetBytes) {
    byte[] txtBytes;
    byte[] txtSeptets;
    int txtBytesLen;
    BitSet bits;// www  . j a  v  a  2s. c  om
    int i, j;
    txtBytes = septetBytes;
    txtBytesLen = txtBytes.length;
    bits = new BitSet();
    for (i = 0; i < txtBytesLen; i++)
        for (j = 0; j < 7; j++)
            if ((txtBytes[i] & (1 << j)) != 0)
                bits.set((i * 7) + j);
    // big diff here
    int encodedSeptetByteArrayLength = txtBytesLen * 7 / 8 + ((txtBytesLen * 7 % 8 != 0) ? 1 : 0);
    txtSeptets = new byte[encodedSeptetByteArrayLength];
    for (i = 0; i < encodedSeptetByteArrayLength; i++) {
        for (j = 0; j < 8; j++) {
            txtSeptets[i] |= (byte) ((bits.get((i * 8) + j) ? 1 : 0) << j);
        }
    }
    return txtSeptets;
}

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From source file:Main.java

public static BitSet fromByteArray(byte[] bytes) {
    if (bytes == null) {
        return new BitSet();
    }/*w w  w. j  a v  a2 s . c  o m*/
    BitSet bits = new BitSet();
    for (int i = 0; i < bytes.length * 8; i++) {
        if ((bytes[(bytes.length) - (i / 8) - 1] & (1 << (i % 8))) > 0) {
            bits.set(i);
        }
    }
    return bits;
}

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From source file:Main.java

public static BitSet int2BitSet(int value, int offset) {

    BitSet bs = new BitSet();

    String hex = Integer.toHexString(value);
    hex2BitSet(bs, hex.getBytes(), offset);

    return bs;// ww w.j  a va2 s.c  o m
}

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From source file:org.terrier.realtime.compression.MemBitSetBuffer.java

/** Constructor (64 bits). */
public MemBitSetBuffer() {
    buffer = new BitSet();
    pointer = 1;
    position = 1;
}

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