Example usage for java.util Iterator hasNext

Introduction

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

Prototype

boolean hasNext();

Source Link

Document

Returns true if the iteration has more elements.

Usage

From source file:TimeTrial.java

public static void main(String[] args) {

    StopWatch stWatch = new StopWatch();

    // Start StopWatch
    stWatch.start();//from  w w w.j  a va2  s  .c om

    // Get iterator for all days in a week starting Monday
    Iterator itr = DateUtils.iterator(new Date(), DateUtils.RANGE_WEEK_MONDAY);

    while (itr.hasNext()) {
        Calendar gCal = (Calendar) itr.next();
        System.out.println(gCal.getTime());
    }

    // Stop StopWatch
    stWatch.stop();
    System.out.println("Time Taken >>" + stWatch.getTime());

}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    Selector selector = Selector.open();

    ServerSocketChannel ssChannel1 = ServerSocketChannel.open();
    ssChannel1.configureBlocking(false);
    ssChannel1.socket().bind(new InetSocketAddress(80));

    ServerSocketChannel ssChannel2 = ServerSocketChannel.open();
    ssChannel2.configureBlocking(false);
    ssChannel2.socket().bind(new InetSocketAddress(81));

    ssChannel1.register(selector, SelectionKey.OP_ACCEPT);
    ssChannel2.register(selector, SelectionKey.OP_ACCEPT);

    while (true) {
        selector.select();// w ww  . j  a v a2s . c om
        Iterator it = selector.selectedKeys().iterator();
        while (it.hasNext()) {
            SelectionKey selKey = (SelectionKey) it.next();
            it.remove();

            if (selKey.isAcceptable()) {
                ServerSocketChannel ssChannel = (ServerSocketChannel) selKey.channel();
                SocketChannel sc = ssChannel.accept();
                ByteBuffer buf = ByteBuffer.allocate(100);
                int numBytesRead = sc.read(buf);

                if (numBytesRead == -1) {
                    sc.close();
                } else {
                    // Read the bytes from the buffer
                }
                int numBytesWritten = sc.write(buf);
            }
        }
    }
}

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From source file:Main.java

public static void main(String[] args) {
    // Create a list of strings
    List<String> names = new ArrayList<>();
    names.add("A");
    names.add("B");
    names.add("C");

    Iterator<String> nameIterator = names.iterator();
    // Iterate over all elements in the list
    while (nameIterator.hasNext()) {
        // Get the next element from the list
        String name = nameIterator.next();
        System.out.println(name);
        nameIterator.remove();//  ww  w  .  ja  va 2  s . c o  m
    }
    System.out.println(names);
}

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From source file:Main.java

public static void main(String[] args) {

    TreeSet<Integer> treeadd = new TreeSet<Integer>();

    treeadd.add(1);/*  w ww.  j a  v  a  2  s  .c  om*/
    treeadd.add(13);
    treeadd.add(17);
    treeadd.add(2);

    // creating reverse set
    TreeSet<Integer> treereverse = (TreeSet<Integer>) treeadd.descendingSet();

    // create descending set
    Iterator<Integer> iterator = treereverse.iterator();

    //Tree set data in reverse order
    while (iterator.hasNext()) {
        System.out.println(iterator.next());
    }
}

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From source file:InstanceOfDemo.java

/** 
 * Demo method.//w  w  w.  j a  v a 2  s .  c o m
 *
 * @param args Command Line arguments.
 */
public static void main(final String[] args) {
    final Iterator iter = OBJECT_SET.iterator();
    Object obj = null;

    while (iter.hasNext()) {
        obj = iter.next();
        if (obj instanceof Number) {
            System.out.println(obj);
        }
    }
}

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From source file:com.github.xbn.examples.io.non_xbn.SizeOrderAllFilesInDirXmpl.java

public static final void main(String[] ignored) {
    File fDir = (new File("R:\\jeffy\\programming\\sandbox\\xbnjava\\xbn\\"));
    Collection<File> cllf = FileUtils.listFiles(fDir, (new String[] { "java" }), true);

    //Add all file paths to a Map, keyed by size.
    //It's actually a map of lists-of-files, to
    //allow multiple files that happen to have the
    //same length.

    TreeMap<Long, List<File>> tmFilesBySize = new TreeMap<Long, List<File>>();
    Iterator<File> itrf = cllf.iterator();
    while (itrf.hasNext()) {
        File f = itrf.next();//from   ww  w  .  java 2s. c  o m
        Long LLen = f.length();
        if (!tmFilesBySize.containsKey(LLen)) {
            ArrayList<File> alf = new ArrayList<File>();
            alf.add(f);
            tmFilesBySize.put(LLen, alf);
        } else {
            tmFilesBySize.get(LLen).add(f);
        }
    }

    //Iterate backwards by key through the map. For each
    //List<File>, iterate through the files, printing out
    //its size and path.

    ArrayList<Long> alSize = new ArrayList<Long>(tmFilesBySize.keySet());
    for (int i = alSize.size() - 1; i >= 0; i--) {
        itrf = tmFilesBySize.get(alSize.get(i)).iterator();
        while (itrf.hasNext()) {
            File f = itrf.next();
            System.out.println(f.length() + ": " + f.getPath());
        }
    }
}

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From source file:au.org.ala.layers.client.Client.java

public static void main(String[] args) {
    System.out.println("Layers Store CLI client");

    ApplicationContext context = new ClassPathXmlApplicationContext("spring/app-config.xml");

    LayerDAO layerDao = (LayerDAO) context.getBean("layerDao");
    List<Layer> layers = layerDao.getLayers();
    System.out.println("Got " + layers.size() + " layers");
    Iterator<Layer> it = layers.iterator();
    while (it.hasNext()) {
        Layer l = it.next();/*  w ww  .  jav  a  2  s . com*/
        System.out.println(" > " + l.getName());
    }
}

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From source file:com.discursive.jccook.xml.bardsearch.TermFreq.java

public static void main(String[] pArgs) throws Exception {
    logger.info("Threshold is 200");
    Integer threshold = new Integer(200);

    IndexReader reader = IndexReader.open("index");
    TermEnum enumVar = reader.terms();/* w w w  .  j  av  a  2s  .c om*/
    List termList = new ArrayList();
    while (enumVar.next()) {
        if (enumVar.docFreq() >= threshold.intValue() && enumVar.term().field().equals("speech")) {
            Freq freq = new Freq(enumVar.term().text(), enumVar.docFreq());
            termList.add(freq);
        }
    }
    Collections.sort(termList);
    Collections.reverse(termList);

    System.out.println("Frequency | Term");
    Iterator iterator = termList.iterator();
    while (iterator.hasNext()) {
        Freq freq = (Freq) iterator.next();
        System.out.print(freq.frequency);
        System.out.println(" | " + freq.term);
    }
}

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From source file:Main.java

public static void main(String[] args) {
    String html = "<!html>" + "<html><body>" + "<span id='my'>" + "<span class=''contentTitle'>Director:</span>"
            + "<span>test</span></span>" + "</body></html>";

    Document doc = Jsoup.parse(html);
    System.out.println(doc.toString());

    Elements spanWithId = doc.select("span#my");

    if (spanWithId != null) {
        System.out.printf("Found %d Elements\n", spanWithId.size());

        if (!spanWithId.isEmpty()) {
            Iterator<Element> it = spanWithId.iterator();
            Element element = null;
            while (it.hasNext()) {
                element = it.next();//  www.  ja v a 2  s.  co m
                System.out.println(element.toString());
            }
        }
    }
}

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From source file:NewFingerServer.java

public static void main(String[] arguments) throws Exception {
    ServerSocketChannel sockChannel = ServerSocketChannel.open();
    sockChannel.configureBlocking(false);

    InetSocketAddress server = new InetSocketAddress("localhost", 79);
    ServerSocket socket = sockChannel.socket();
    socket.bind(server);/*from  w  w  w  . j  a  v  a  2 s  .c o  m*/

    Selector selector = Selector.open();
    sockChannel.register(selector, SelectionKey.OP_ACCEPT);

    while (true) {
        selector.select();
        Set keys = selector.selectedKeys();
        Iterator it = keys.iterator();
        while (it.hasNext()) {
            SelectionKey selKey = (SelectionKey) it.next();
            it.remove();
            if (selKey.isAcceptable()) {
                ServerSocketChannel selChannel = (ServerSocketChannel) selKey.channel();
                ServerSocket selSocket = selChannel.socket();
                Socket connection = selSocket.accept();

                InputStreamReader isr = new InputStreamReader(connection.getInputStream());
                BufferedReader is = new BufferedReader(isr);
                PrintWriter pw = new PrintWriter(new BufferedOutputStream(connection.getOutputStream()), false);
                pw.println("NIO Finger Server");
                pw.flush();
                String outLine = null;
                String inLine = is.readLine();
                if (inLine.length() > 0) {
                    outLine = inLine;
                }
                readPlan(outLine, pw);
                pw.flush();
                pw.close();
                is.close();

                connection.close();
            }
        }
    }
}

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