Example usage for java.util List iterator

Introduction

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

Prototype

Iterator<E> iterator();

Source Link

Document

Returns an iterator over the elements in this list in proper sequence.

Usage

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");
    // Get an iterator for the list
    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);
    }//from   w  ww  .  j  ava  2 s .  c o  m

}

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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();//from  ww w.j a  v  a2  s.co  m
        System.out.println(" > " + l.getName());
    }
}

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From source file:net.sourceforge.happybank.facade.BankTest.java

/**
 * Test method./*from  ww w.ja  va  2  s  .  co  m*/
 * 
 * @param args command line arguments
 */
public static void main(final String[] args) {

    try {
        // get context and facade
        ApplicationContext ctx = new FileSystemXmlApplicationContext("build/applicationContext.xml");
        BankingFacade bank = (BankingFacade) ctx.getBean("bankManager");

        // get all customers
        List<Customer> customers = bank.getCustomers();
        Iterator<Customer> custIter = customers.iterator();
        Customer cust = null;
        while (custIter.hasNext()) {
            cust = custIter.next();
            String cid = cust.getId();
            Customer customer = bank.getCustomer(cid);
            System.out.println(customer.toString());

            // get customers accounts
            List<Account> accounts = bank.getAccounts(cid);
            Iterator<Account> accIter = accounts.iterator();
            Account acc = null;
            while (accIter.hasNext()) {
                acc = accIter.next();
                String aid = acc.getId();
                Account account = bank.getAccount(aid);
                System.out.println("\t> " + account.toString());

                // get account transactions
                List<TransRecord> transactions = bank.getTransactions(aid);
                Iterator<TransRecord> transIter = transactions.iterator();
                TransRecord tr = null;
                while (transIter.hasNext()) {
                    tr = transIter.next();
                    System.out.println("\t\t>" + tr.toString());
                }
            }
        }

        // test creation, deletion and withdrawal
        bank.addCustomer("999", "Mr", "First", "Last");
        bank.addAccount("999-99", "999", "Checking");
        bank.deposit("999-99", new BigDecimal(1000.0));
        bank.withdraw("999-99", new BigDecimal(500.0));
        bank.deleteAccount("999-99");
        bank.deleteCustomer("999");

    } catch (BankException ex) {
        ex.printStackTrace();
    }
}

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From source file:de.tudarmstadt.ukp.experiments.argumentation.clustering.entropy.MatrixExperiments.java

public static void main(String[] args) throws Exception {
    File in = new File(args[0]);

    List<String> lines = IOUtils.readLines(new FileInputStream(in));

    int rows = lines.size();
    int cols = lines.iterator().next().split("\\s+").length;

    double[][] matrix = new double[rows][cols];

    Map<Integer, Double> clusterEntropy = new HashMap<>();

    for (int i = 0; i < rows; i++) {
        String line = lines.get(i);

        String[] split = line.split("\\s+");

        for (int j = 0; j < split.length; j++) {
            Double value = Double.valueOf(split[j]);

            matrix[i][j] = value;//w  w  w.  j a  va2  s  .  co  m
        }

        // entropy of the cluster
        Vector v = new DenseVector(matrix[i]);
        //            System.out.print(VectorUtils.entropy(v));
        double entropy = VectorUtils.entropy(VectorUtils.normalize(v));
        System.out.print(entropy);
        System.out.print(" ");

        clusterEntropy.put(i, entropy);
    }

    Map<Integer, Double> sorted = sortByValue(clusterEntropy);
    System.out.println(sorted);

    HeatChart map = new HeatChart(matrix);

    // Step 2: Customise the chart.
    map.setTitle("This is my heat chart title");
    map.setXAxisLabel("X Axis");
    map.setYAxisLabel("Y Axis");

    // Step 3: Output the chart to a file.
    map.saveToFile(new File("/tmp/java-heat-chart.png"));

}

---

From source file:CSVSimple.java

public static void main(String[] args) {
    CSV parser = new CSV();
    List list = parser.parse("\"LU\",86.25,\"11/4/1998\",\"2:19PM\",+4.0625");
    Iterator it = list.iterator();
    while (it.hasNext()) {
        System.out.println(it.next());
    }/*from   w  w  w  .ja va 2 s  . c  o m*/

    // Now test with a non-default separator
    parser = new CSV('|');
    list = parser.parse("\"LU\"|86.25|\"11/4/1998\"|\"2:19PM\"|+4.0625");
    it = list.iterator();
    while (it.hasNext()) {
        System.out.println(it.next());
    }
}

---

From source file:com.berrysys.ussdgw.Starter.java

/**
 * The main method./*  w w  w.  j a va  2 s.  c o  m*/
 *
 * @param args the arguments
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void main(String[] args) throws IOException {
    StringBuilder banner = new StringBuilder();
    banner.append("\n").append("  ____                       ____            \n")
            .append(" | __ )  ___ _ __ _ __ _   _/ ___| _   _ ___ \n")
            .append(" |  _ \\ / _ \\ '__| '__| | | \\___ \\| | | / __|\n")
            .append(" | |_) |  __/ |  | |  | |_| |___) | |_| \\__ \\\n")
            .append(" |____/ \\___|_| _|_|   \\__, |____/ \\__, |___/\n")
            .append(" / ___|(_) __ _| |_ _ _|___/_ _ __ |___/     \n")
            .append(" \\___ \\| |/ _` | __| '__/ _` | '_ \\          \n")
            .append("  ___) | | (_| | |_| | | (_| | | | |         \n")
            .append(" |____/|_|\\__, |\\__|_|  \\__,_|_| |_|         \n")
            .append("  _   _ __|___/__  ____                      \n")
            .append(" | | | / ___/ ___||  _ \\                     \n")
            .append(" | | | \\___ \\___ \\| | | |                    \n")
            .append(" | |_| |___) |__) | |_| |                    \n")
            .append("  \\___/|____/____/|____/                     \n")
            .append("  / ___| __ _| |_ _____      ____ _ _   _    \n")
            .append(" | |  _ / _` | __/ _ \\ \\ /\\ / / _` | | | |   \n")
            .append(" | |_| | (_| | ||  __/\\ V  V / (_| | |_| |   \n")
            .append("  \\____|\\__,_|\\__\\___| \\_/\\_/ \\__,_|\\__, |\n")
            .append("                                    |___/    \n");
    String berrysysUssdGW = banner.toString();

    log.info(berrysysUssdGW);
    ApplicationContext applicationContext = new ClassPathXmlApplicationContext("/app-context.xml");

    List<DialogListener> serverList = (List<DialogListener>) applicationContext.getBean("sctpServerList");

    Iterator<DialogListener> i = serverList.iterator();
    while (i.hasNext()) {
        final DialogListener dialogListenerItem = i.next();
        DialogListenerThread dialogListenerThread = new DialogListenerThread();
        dialogListenerThread.setDialogListener(dialogListenerItem);
        dialogListenerThread.start();
        ThreadHolder.getInstance().getDialogListenerThreadList().add(dialogListenerThread);
    }

    Iterator<DialogListenerThread> j = ThreadHolder.getInstance().getDialogListenerThreadList().iterator();
    while (j.hasNext()) {
        try {
            j.next().join();
        } catch (InterruptedException e) {
            log.catching(e);
        }

    }
}

---

From source file:Main.java

public static void main(String[] args) {
    List<String> syncList = Collections.synchronizedList(new ArrayList<String>());

    syncList.add("one");
    syncList.add("two");
    syncList.add("three");

    synchronized (syncList) {
        Iterator<String> iterator = syncList.iterator();
        while (iterator.hasNext()) {
            System.out.println("item: " + iterator.next());
        }// ww w. j a va2s .  c om
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
    XMLEventWriter writer = outputFactory.createXMLEventWriter(System.out);
    XMLEventFactory xmlEventFactory = XMLEventFactory.newInstance();

    StartDocument startDocument = xmlEventFactory.createStartDocument("UTF-8", "1.0");
    writer.add(startDocument);/*from www  .  jav  a  2s .c  om*/

    StartElement startElement = xmlEventFactory.createStartElement("", "", "My-list");
    writer.add(startElement);

    Attribute attribute = xmlEventFactory.createAttribute("version", "1");
    List attributeList = Arrays.asList(attribute);
    List nsList = Arrays.asList();
    StartElement startElement2 = xmlEventFactory.createStartElement("", "", "Item", attributeList.iterator(),
            nsList.iterator());
    writer.add(startElement2);

    StartElement codeSE = xmlEventFactory.createStartElement("", "", "code");
    writer.add(codeSE);
    Characters codeChars = xmlEventFactory.createCharacters("I001");
    writer.add(codeChars);
    EndElement codeEE = xmlEventFactory.createEndElement("", "", "code");
    writer.add(codeEE);

    StartElement nameSE = xmlEventFactory.createStartElement(" ", " ", "name");
    writer.add(nameSE);
    Characters nameChars = xmlEventFactory.createCharacters("a name");
    writer.add(nameChars);
    EndElement nameEE = xmlEventFactory.createEndElement("", "", "name");
    writer.add(nameEE);

    StartElement contactSE = xmlEventFactory.createStartElement("", "", "contact");
    writer.add(contactSE);
    Characters contactChars = xmlEventFactory.createCharacters("another name");
    writer.add(contactChars);
    EndElement contactEE = xmlEventFactory.createEndElement("", "", "contact");
    writer.add(contactEE);

    EndDocument ed = xmlEventFactory.createEndDocument();
    writer.add(ed);

    writer.flush();
    writer.close();
}

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From source file:ShowImage.java

public static void main(String args[]) throws IOException {
    List<File> files = ImageIOUtils.getFiles(args, new String[] { "ntf", "nsf" });

    for (Iterator iter = files.iterator(); iter.hasNext();) {
        try {/*from w  w w.ja v  a2 s  .co m*/
            File file = (File) iter.next();
            log.debug("Reading: " + file.getAbsolutePath());
            NITFReader imageReader = (NITFReader) ImageIOUtils.getImageReader("nitf", file);

            for (int i = 0; i < imageReader.getRecord().getImages().length; ++i) {
                log.debug(file.getName() + "[" + i + "]");

                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                ImageSubheader subheader = imageReader.getRecord().getImages()[i].getSubheader();
                subheader.print(new PrintStream(stream));
                log.debug(stream.toString());

                try {
                    int numBands = subheader.getBandCount();
                    String irep = subheader.getImageRepresentation().getStringData().trim();
                    int bitsPerPixel = subheader.getNumBitsPerPixel().getIntData();
                    int nBytes = (bitsPerPixel - 1) / 8 + 1;

                    if (irep.equals("RGB") && numBands == 3) {
                        BufferedImage image = imageReader.read(i);
                        ImageIOUtils.showImage(image, file.getName() + "[" + i + "]", true);
                    } else {
                        // read each band, separately
                        for (int j = 0; j < numBands; ++j) {
                            if (nBytes == 1 || nBytes == 2 || nBytes == 4 || nBytes == 8) {
                                ImageReadParam readParam = imageReader.getDefaultReadParam();
                                readParam.setSourceBands(new int[] { j });
                                BufferedImage image = imageReader.read(i, readParam);
                                ImageIOUtils.showImage(image, file.getName() + "[" + i + "][" + j + "]", true);

                                ImageIO.write(image, "jpg",
                                        new FileOutputStream("image" + i + "_" + j + ".jpg"));

                                // downsample
                                // readParam.setSourceSubsampling(2, 2, 0,
                                // 0);
                                // BufferedImage smallerImage = imageReader
                                // .read(i, readParam);
                                //
                                // ImageIOUtils.showImage(smallerImage,
                                // "DOWNSAMPLED: " + file.getName());

                            }
                        }
                    }
                } catch (Exception e) {
                    System.out.println(ExceptionUtils.getStackTrace(e));
                    log.error(ExceptionUtils.getStackTrace(e));
                }
            }
        } catch (Exception e) {
            log.debug(ExceptionUtils.getStackTrace(e));
        }
    }
}

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From source file:XMLEventWriterDemo.java

public static void main(String[] args) throws Exception {
    XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();

    XMLEventWriter writer = outputFactory.createXMLEventWriter(System.out);

    XMLEventFactory xmlEventFactory = XMLEventFactory.newInstance();

    StartDocument startDocument = xmlEventFactory.createStartDocument("UTF-8", "1.0");
    writer.add(startDocument);/*from w  w  w  .j  a  v a2  s  .c o m*/

    StartElement startElement = xmlEventFactory.createStartElement("", "", "My-list");
    writer.add(startElement);

    Attribute attribute = xmlEventFactory.createAttribute("version", "1");
    List attributeList = Arrays.asList(attribute);
    List nsList = Arrays.asList();
    StartElement startElement2 = xmlEventFactory.createStartElement("", "", "Item", attributeList.iterator(),
            nsList.iterator());
    writer.add(startElement2);

    StartElement codeSE = xmlEventFactory.createStartElement("", "", "code");
    writer.add(codeSE);
    Characters codeChars = xmlEventFactory.createCharacters("I001");
    writer.add(codeChars);
    EndElement codeEE = xmlEventFactory.createEndElement("", "", "code");
    writer.add(codeEE);

    StartElement nameSE = xmlEventFactory.createStartElement(" ", " ", "name");
    writer.add(nameSE);
    Characters nameChars = xmlEventFactory.createCharacters("a name");
    writer.add(nameChars);
    EndElement nameEE = xmlEventFactory.createEndElement("", "", "name");
    writer.add(nameEE);

    StartElement contactSE = xmlEventFactory.createStartElement("", "", "contact");
    writer.add(contactSE);
    Characters contactChars = xmlEventFactory.createCharacters("another name");
    writer.add(contactChars);
    EndElement contactEE = xmlEventFactory.createEndElement("", "", "contact");
    writer.add(contactEE);

    EndDocument ed = xmlEventFactory.createEndDocument();
    writer.add(ed);

    writer.flush();
    writer.close();
}

---

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