Example usage for java.util TreeSet iterator

Introduction

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

Prototype

public Iterator<E> iterator() 

Source Link

Document

Returns an iterator over the elements in this set in ascending order.

Usage

From source file:Main.java

public static void main(String[] args) {

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

    treeadd.add(12);//from   w w w .  j a  v  a 2 s  . c o  m
    treeadd.add(13);
    treeadd.add(14);
    treeadd.add(15);

    Iterator<Integer> iterator = treeadd.iterator();

    while (iterator.hasNext()) {
        System.out.print(iterator.next());
    }
}

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From source file:Main.java

public static void main(String[] args) {

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

    treeadd.add(12);//from ww w  .j ava 2s  .co  m
    treeadd.add(13);
    treeadd.add(14);
    treeadd.add(15);

    Iterator<Integer> iterator = treeadd.iterator();

    while (iterator.hasNext()) {
        System.out.println(iterator.next());
    }

    treeadd.clear();
    System.out.println(treeadd.size());
}

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From source file:Main.java

public static void main(String[] args) {

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

    treeadd.add(1);/*from   w  w  w. j ava2s.  c o m*/
    treeadd.add(3);
    treeadd.add(17);
    treeadd.add(2);

    System.out.println("Last element is: " + treeadd.pollLast());

    Iterator<Integer> iterator = treeadd.iterator();

    while (iterator.hasNext()) {
        System.out.println(iterator.next());
    }
}

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From source file:Main.java

public static void main(String[] args) {

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

    treeadd.add(1);//from ww  w.  ja v  a 2s.co  m
    treeadd.add(3);
    treeadd.add(17);
    treeadd.add(2);

    System.out.println("First element is: " + treeadd.pollFirst());

    Iterator<Integer> iterator = treeadd.iterator();

    while (iterator.hasNext()) {
        System.out.println(iterator.next());
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    TreeSet<Integer> treeone = new TreeSet<Integer>();
    TreeSet<Integer> treetwo = new TreeSet<Integer>();

    treeone.add(12);//from ww w.j a v  a2s . c o m
    treeone.add(13);
    treeone.add(14);

    treetwo.add(15);
    treetwo.add(16);
    treetwo.add(17);

    // adding treetwo to treeone
    treeone.addAll(treetwo);

    Iterator<Integer> iterator = treeone.iterator();

    while (iterator.hasNext()) {
        System.out.print(iterator.next());
    }
}

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From source file:TreeSetDemo.java

public static void main(String[] argv) {
    //+/* w w w . j a  va2  s .co  m*/
    /*
     * A TreeSet keeps objects in sorted order. We use a Comparator
     * published by String for case-insensitive sorting order.
     */
    TreeSet tm = new TreeSet(String.CASE_INSENSITIVE_ORDER);
    tm.add("Gosling");
    tm.add("da Vinci");
    tm.add("van Gogh");
    tm.add("Java To Go");
    tm.add("Vanguard");
    tm.add("Darwin");
    tm.add("Darwin"); // TreeSet is Set, ignores duplicates.

    // Since it is sorted we can ask for various subsets
    System.out.println("Lowest (alphabetically) is " + tm.first());
    // Print how many elements are greater than "k"
    System.out.println(tm.tailSet("k").toArray().length + " elements higher than \"k\"");

    // Print the whole list in sorted order
    System.out.println("Sorted list:");
    java.util.Iterator t = tm.iterator();
    while (t.hasNext())
        System.out.println(t.next());
    //-
}

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From source file:org.commoncrawl.util.MultiFileMergeUtils.java

public static void main(String[] args) {

    Path testPath = new Path(args[0]);

    LOG.info("Initializing Hadoop Config");

    Configuration conf = new Configuration();

    conf.addResource("nutch-default.xml");
    conf.addResource("nutch-site.xml");
    conf.addResource("mapred-site.xml");
    conf.addResource("hdfs-site.xml");
    conf.addResource("commoncrawl-default.xml");
    conf.addResource("commoncrawl-site.xml");

    conf.setClass(MultiFileInputReader.MULTIFILE_COMPARATOR_CLASS, URLFPV2RawComparator.class,
            RawComparator.class);
    conf.setClass(MultiFileInputReader.MULTIFILE_KEY_CLASS, URLFPV2.class, WritableComparable.class);

    CrawlEnvironment.setHadoopConfig(conf);
    CrawlEnvironment.setDefaultHadoopFSURI("hdfs://ccn01:9000/");

    try {//from w  w  w.  ja v  a  2 s  .c  om
        FileSystem fs = CrawlEnvironment.getDefaultFileSystem();

        Vector<Path> paths = new Vector<Path>();

        paths.add(new Path(testPath, "part-00000"));
        // paths.add(new Path(testPath,"part-00000"));
        paths.add(new Path(testPath, "part-00001"));

        TreeSet<URLFPV2> directReadSet = new TreeSet<URLFPV2>();
        TreeSet<URLFPV2> multiFileReadSet = new TreeSet<URLFPV2>();

        MultiFileInputReader<URLFPV2> inputReader = new MultiFileInputReader<URLFPV2>(fs, paths, conf);

        KeyAndValueData<URLFPV2> keyValueData = null;
        int multiFileKeyCount = 0;
        while ((keyValueData = inputReader.readNextItem()) != null) {
            LOG.info("Got Key Domain:" + keyValueData._keyObject.getDomainHash() + " URLHash:"
                    + keyValueData._keyObject.getUrlHash() + " Item Count:" + keyValueData._values.size()
                    + " Path[0]:" + keyValueData._values.get(0).source);

            if (keyValueData._values.size() > 1) {
                LOG.error("Got more than one item");
                for (int i = 0; i < keyValueData._values.size(); ++i) {
                    CRC32 crc = new CRC32();
                    crc.update(keyValueData._keyData.getData(), 0, keyValueData._keyData.getLength());
                    LOG.error("Item at[" + i + "] Path:" + keyValueData._values.get(i).source + " CRC:"
                            + crc.getValue());
                }
            }
            if (multiFileKeyCount++ < 1000)
                multiFileReadSet.add((URLFPV2) keyValueData._keyObject.clone());
        }
        inputReader.close();

        addFirstNFPItemsToSet(fs, new Path(testPath, "part-00000"), conf, directReadSet, 1000);
        addFirstNFPItemsToSet(fs, new Path(testPath, "part-00001"), conf, directReadSet, 1000);

        Iterator<URLFPV2> directReadIterator = directReadSet.iterator();
        Iterator<URLFPV2> multiFileReadIterator = multiFileReadSet.iterator();

        for (int i = 0; i < 1000; ++i) {
            URLFPV2 directReadFP = directReadIterator.next();
            URLFPV2 multiFileReadFP = multiFileReadIterator.next();

            if (directReadFP.compareTo(multiFileReadFP) != 0) {
                LOG.info("Mismatch at Index:" + i);
            }
        }

    } catch (IOException e) {
        LOG.error(CCStringUtils.stringifyException(e));
    } catch (CloneNotSupportedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

---

From source file:Main.java

/**
 * Return serializable data, the format of these data is placed like the following format
 * ${key}=${value}// w ww  .j  a va2 s  . co m
 *
 * @param properties Properties instance
 * @return serializable data
 * @throws java.io.UnsupportedEncodingException
 *          if errors occure during text converted to UTF-8 encoding
 */
public static byte[] getSerializablePropertiesData(Properties properties) throws UnsupportedEncodingException {
    Set keySet = properties.keySet();
    TreeSet keys = new TreeSet(keySet);
    Iterator it = keys.iterator();
    StringBuffer bf = new StringBuffer();
    while (it.hasNext()) {
        String item = (String) it.next();
        String resourceValue = (String) properties.get(item);
        bf.append(item);
        bf.append("=");
        bf.append(resourceValue);
        bf.append("\n");
    }
    return bf.toString().getBytes("UTF-8");
}

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From source file:uf.edu.AddLocation.java

public static String getLocation(TreeSet<String> APs) {
    Iterator<String> itr = APs.iterator();
    JSONArray wifiaps = new JSONArray();
    String out = null;/*from  w  w w  .j a  v a  2s.  c  o m*/

    //put mac address in the json array
    while (itr.hasNext()) {
        JSONObject wifiap = new JSONObject();
        try {
            wifiap.put("mac_address", (String) itr.next());
            //TODO: add signal strength
        } catch (JSONException e) {
            Log.i(TAG, "AddLocation: Exception" + e.getMessage());
            e.printStackTrace();
        }
        wifiaps.put(wifiap);
    }

    //Adding rest of the data to create a complete Jason Package
    JSONObject obj = new JSONObject();
    try {
        obj.put("version", "1.1.0");
        obj.put("request_address", true);
        obj.put("wifi_towers", wifiaps);
    } catch (JSONException e) {
        Log.i(TAG, "AddLocation: Exception" + e.getMessage());
    }

    //Now ask the Google Server for address.
    JSONObject output = SendHttpPost(url, obj);
    if (output == null) {
        return null;
    }
    //Parse out the address.
    try {

        out = ((JSONObject) output.get("location")).get("latitude") + ","
                + ((JSONObject) output.get("location")).get("longitude");
    } catch (Exception e) {
        Log.i(TAG, "AddLocation: Exception parsing JSON " + e.getMessage());
    }
    try {
        out = out + "," + ((JSONObject) output.get("location")).get("accuracy");
    } catch (Exception e) {
        Log.i(TAG, "AddLocation: Exception parsing JSON " + e.getMessage());
    }
    /*
    try{
       JSONObject address = ((JSONObject)((JSONObject)output.get("location")).get("address"));
       try{
    out = out +","+ address.get("street_number") + "," + address.get("street")+"," + address.get("postal_code");
       } catch (Exception e) {
    Log.i(TAG,"AddLocation: Exception parsing JSON " + e.getMessage());
       }     
       try{
    out =out +","+ address.get("city") +","+ address.get("county")+","+ address.get("region")+","+ address.get("country")+","+address.get("country_code") +"\n";
              
       } catch (Exception e) {
    Log.i(TAG,"AddLocation: Exception parsing JSON " + e.getMessage());
       }
       Iterator<String> it = address.keys();
       while(it.hasNext()){
    Log.i(TAG,"AddLocation: Key iterator: " + it.next());
       }
    } catch (Exception e) {
       Log.i(TAG,"AddLocation: Exception parsing JSON " + e.getMessage());
    }     
    */
    Log.i(TAG, "AddLocation: " + out);

    return out;
}

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From source file:org.openhab.binding.network.service.NetworkUtils.java

/**
 * Takes the interfaceIPs and fetches every IP which can be assigned on their network
 *
 * @param networkIPs The IPs which are assigned to the Network Interfaces
 * @return Every single IP which can be assigned on the Networks the computer is connected to
 *//*from   w ww .j a  v  a 2  s  .  c  o  m*/
public static LinkedHashSet<String> getNetworkIPs(TreeSet<String> interfaceIPs) {
    LinkedHashSet<String> networkIPs = new LinkedHashSet<String>();

    for (Iterator<String> it = interfaceIPs.iterator(); it.hasNext();) {
        try {
            // gets every ip which can be assigned on the given network
            SubnetUtils utils = new SubnetUtils(it.next());
            String[] addresses = utils.getInfo().getAllAddresses();
            for (int i = 0; i < addresses.length; i++) {
                networkIPs.add(addresses[i]);
            }

        } catch (Exception ex) {
        }
    }

    return networkIPs;
}

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