Example usage for java.util HashMap entrySet

List of usage examples for java.util HashMap entrySet

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Introduction

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

Prototype

Set entrySet

To view the source code for java.util HashMap entrySet.

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Document

Holds cached entrySet().

Usage

From source file:Main.java

public static void main(String args[]) {

    Properties prop = new Properties();

    prop.setProperty("A", "t@h.com");
    prop.setProperty("B", "k@h.com");
    prop.setProperty("C", "R@h.com");
    prop.setProperty("D", "S@h.com");

    HashMap<String, String> propMap = new HashMap<String, String>((Map) prop);

    Set<Map.Entry<String, String>> propSet;
    propSet = propMap.entrySet();

    System.out.println("Contents of map: ");
    for (Map.Entry<String, String> me : propSet) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }/*from   www.  ja  v  a  2  s . com*/
}

From source file:Main.java

public static void main(String args[]) {
    HashMap<Integer, String> newmap = new HashMap<Integer, String>();

    newmap.put(1, "tutorials");
    newmap.put(2, "from");
    newmap.put(3, "java2s.com");

    // create set view for the map
    Set set = newmap.entrySet();

    // check set values
    System.out.println("Set values: " + set);
}

From source file:HashMapDemo.java

public static void main(String args[]) {

    HashMap<String, Double> hm = new HashMap<String, Double>();

    hm.put("A", new Double(3.34));
    hm.put("B", new Double(1.22));
    hm.put("C", new Double(1.00));
    hm.put("D", new Double(9.22));
    hm.put("E", new Double(-19.08));

    Set<Map.Entry<String, Double>> set = hm.entrySet();

    for (Map.Entry<String, Double> me : set) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }/* w w w.jav a2  s .  c o  m*/

    double balance = hm.get("A");
    hm.put("A", balance + 1000);

    System.out.println(hm.get("A"));
}

From source file:Main.java

public static void main(String[] args) {

    HashMap<String, Integer> map = new HashMap<String, Integer>();

    map.put("item1", 1);
    map.put("item2", 2);
    map.put("item3", 1);
    map.put("item4", 7);
    map.put("item5", 3);
    map.put("item6", 4);

    for (Map.Entry<String, Integer> entry : map.entrySet()) {
        System.out.println("Item is:" + entry.getKey() + " with value:" + entry.getValue());
    }//ww  w  . ja va 2s.c o  m

    Map<String, Integer> sortedMap = sortByValue(map);

    for (Map.Entry<String, Integer> entry : sortedMap.entrySet()) {
        System.out.println("Item is:" + entry.getKey() + " with value:" + entry.getValue());
    }
}

From source file:MainClass.java

public static void main(String args[]) {

    HashMap<String, Double> hm = new HashMap<String, Double>();

    hm.put("A", new Double(3434.34));
    hm.put("B", new Double(123.22));
    hm.put("C", new Double(1378.00));
    hm.put("D", new Double(99.22));
    hm.put("E", new Double(-19.08));

    Set<Map.Entry<String, Double>> set = hm.entrySet();

    for (Map.Entry<String, Double> me : set) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }/* w w  w.jav  a  2  s.  c  o m*/

    System.out.println();

    double balance = hm.get("B");
    hm.put("B", balance + 1000);

    System.out.println("B's new balance: " + hm.get("B"));
}

From source file:fr.inria.atlanmod.kyanos.benchmarks.KyanosMapQueryClassDeclarationAttributes.java

public static void main(String[] args) {
    Options options = new Options();

    Option inputOpt = OptionBuilder.create(IN);
    inputOpt.setArgName("INPUT");
    inputOpt.setDescription("Input Kyanos resource directory");
    inputOpt.setArgs(1);//from   w  w w.j  ava2  s  . c o  m
    inputOpt.setRequired(true);

    Option inClassOpt = OptionBuilder.create(EPACKAGE_CLASS);
    inClassOpt.setArgName("CLASS");
    inClassOpt.setDescription("FQN of EPackage implementation class");
    inClassOpt.setArgs(1);
    inClassOpt.setRequired(true);

    options.addOption(inputOpt);
    options.addOption(inClassOpt);

    CommandLineParser parser = new PosixParser();

    try {
        PersistenceBackendFactoryRegistry.getFactories().put(NeoMapURI.NEO_MAP_SCHEME,
                new MapPersistenceBackendFactory());

        CommandLine commandLine = parser.parse(options, args);

        URI uri = NeoMapURI.createNeoMapURI(new File(commandLine.getOptionValue(IN)));

        Class<?> inClazz = KyanosMapQueryClassDeclarationAttributes.class.getClassLoader()
                .loadClass(commandLine.getOptionValue(EPACKAGE_CLASS));
        inClazz.getMethod("init").invoke(null);

        ResourceSet resourceSet = new ResourceSetImpl();
        resourceSet.getResourceFactoryRegistry().getProtocolToFactoryMap().put(NeoMapURI.NEO_MAP_SCHEME,
                PersistentResourceFactory.eINSTANCE);

        Resource resource = resourceSet.createResource(uri);

        Map<String, Object> loadOpts = new HashMap<String, Object>();
        resource.load(loadOpts);
        {
            LOG.log(Level.INFO, "Start query");
            long begin = System.currentTimeMillis();
            HashMap<String, EList<NamedElement>> list = JavaQueries.getClassDeclarationAttributes(resource);
            long end = System.currentTimeMillis();
            LOG.log(Level.INFO, "End query");
            LOG.log(Level.INFO,
                    MessageFormat.format("Query result contains {0} elements", list.entrySet().size()));
            LOG.log(Level.INFO, MessageFormat.format("Time spent: {0}", MessageUtil.formatMillis(end - begin)));
        }

        if (resource instanceof PersistentResourceImpl) {
            PersistentResourceImpl.shutdownWithoutUnload((PersistentResourceImpl) resource);
        } else {
            resource.unload();
        }

    } catch (ParseException e) {
        MessageUtil.showError(e.toString());
        MessageUtil.showError("Current arguments: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("java -jar <this-file.jar>", options, true);
    } catch (Throwable e) {
        MessageUtil.showError(e.toString());
    }
}

From source file:fr.inria.atlanmod.kyanos.benchmarks.CdoQueryThrownExceptionsPerPackage.java

public static void main(String[] args) {
    Options options = new Options();

    Option inputOpt = OptionBuilder.create(IN);
    inputOpt.setArgName("INPUT");
    inputOpt.setDescription("Input CDO resource directory");
    inputOpt.setArgs(1);/*www. j a  v  a 2s . c om*/
    inputOpt.setRequired(true);

    Option inClassOpt = OptionBuilder.create(EPACKAGE_CLASS);
    inClassOpt.setArgName("CLASS");
    inClassOpt.setDescription("FQN of EPackage implementation class");
    inClassOpt.setArgs(1);
    inClassOpt.setRequired(true);

    Option repoOpt = OptionBuilder.create(REPO_NAME);
    repoOpt.setArgName("REPO_NAME");
    repoOpt.setDescription("CDO Repository name");
    repoOpt.setArgs(1);
    repoOpt.setRequired(true);

    options.addOption(inputOpt);
    options.addOption(inClassOpt);
    options.addOption(repoOpt);

    CommandLineParser parser = new PosixParser();

    try {
        CommandLine commandLine = parser.parse(options, args);

        String repositoryDir = commandLine.getOptionValue(IN);
        String repositoryName = commandLine.getOptionValue(REPO_NAME);

        Class<?> inClazz = CdoQueryThrownExceptionsPerPackage.class.getClassLoader()
                .loadClass(commandLine.getOptionValue(EPACKAGE_CLASS));
        inClazz.getMethod("init").invoke(null);

        EmbeddedCDOServer server = new EmbeddedCDOServer(repositoryDir, repositoryName);
        try {
            server.run();
            CDOSession session = server.openSession();
            CDOTransaction transaction = session.openTransaction();
            Resource resource = transaction.getRootResource();

            {
                LOG.log(Level.INFO, "Start query");
                long begin = System.currentTimeMillis();
                HashMap<String, EList<TypeAccess>> map = JavaQueries.getThrownExceptionsPerPackage(resource);
                long end = System.currentTimeMillis();
                LOG.log(Level.INFO, "End query");
                LOG.log(Level.INFO,
                        MessageFormat.format("Query result contains {0} elements", map.entrySet().size()));
                LOG.log(Level.INFO,
                        MessageFormat.format("Time spent: {0}", MessageUtil.formatMillis(end - begin)));
            }

            transaction.close();
            session.close();
        } finally {
            server.stop();
        }
    } catch (ParseException e) {
        MessageUtil.showError(e.toString());
        MessageUtil.showError("Current arguments: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("java -jar <this-file.jar>", options, true);
    } catch (Throwable e) {
        MessageUtil.showError(e.toString());
    }
}

From source file:fr.inria.atlanmod.kyanos.benchmarks.CdoQueryClassDeclarationAttributes.java

public static void main(String[] args) {
    Options options = new Options();

    Option inputOpt = OptionBuilder.create(IN);
    inputOpt.setArgName("INPUT");
    inputOpt.setDescription("Input CDO resource directory");
    inputOpt.setArgs(1);/*from w  w w.  j  av a  2  s  . c  o  m*/
    inputOpt.setRequired(true);

    Option inClassOpt = OptionBuilder.create(EPACKAGE_CLASS);
    inClassOpt.setArgName("CLASS");
    inClassOpt.setDescription("FQN of EPackage implementation class");
    inClassOpt.setArgs(1);
    inClassOpt.setRequired(true);

    Option repoOpt = OptionBuilder.create(REPO_NAME);
    repoOpt.setArgName("REPO_NAME");
    repoOpt.setDescription("CDO Repository name");
    repoOpt.setArgs(1);
    repoOpt.setRequired(true);

    options.addOption(inputOpt);
    options.addOption(inClassOpt);
    options.addOption(repoOpt);

    CommandLineParser parser = new PosixParser();

    try {
        CommandLine commandLine = parser.parse(options, args);

        String repositoryDir = commandLine.getOptionValue(IN);
        String repositoryName = commandLine.getOptionValue(REPO_NAME);

        Class<?> inClazz = CdoQueryClassDeclarationAttributes.class.getClassLoader()
                .loadClass(commandLine.getOptionValue(EPACKAGE_CLASS));
        inClazz.getMethod("init").invoke(null);

        EmbeddedCDOServer server = new EmbeddedCDOServer(repositoryDir, repositoryName);
        try {
            server.run();
            CDOSession session = server.openSession();
            CDOTransaction transaction = session.openTransaction();
            Resource resource = transaction.getRootResource();

            {
                LOG.log(Level.INFO, "Start query");
                long begin = System.currentTimeMillis();
                HashMap<String, EList<NamedElement>> map = JavaQueries.getClassDeclarationAttributes(resource);
                long end = System.currentTimeMillis();
                LOG.log(Level.INFO, "End query");
                LOG.log(Level.INFO,
                        MessageFormat.format("Query result contains {0} elements", map.entrySet().size()));
                LOG.log(Level.INFO,
                        MessageFormat.format("Time spent: {0}", MessageUtil.formatMillis(end - begin)));
            }

            transaction.close();
            session.close();
        } finally {
            server.stop();
        }
    } catch (ParseException e) {
        MessageUtil.showError(e.toString());
        MessageUtil.showError("Current arguments: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("java -jar <this-file.jar>", options, true);
    } catch (Throwable e) {
        MessageUtil.showError(e.toString());
    }
}

From source file:fr.inria.atlanmod.kyanos.benchmarks.KyanosGraphQueryClassDeclarationAttributes.java

public static void main(String[] args) {
    Options options = new Options();

    Option inputOpt = OptionBuilder.create(IN);
    inputOpt.setArgName("INPUT");
    inputOpt.setDescription("Input Kyanos resource directory");
    inputOpt.setArgs(1);/*w  w w .  j  a va 2s  .c  o m*/
    inputOpt.setRequired(true);

    Option inClassOpt = OptionBuilder.create(EPACKAGE_CLASS);
    inClassOpt.setArgName("CLASS");
    inClassOpt.setDescription("FQN of EPackage implementation class");
    inClassOpt.setArgs(1);
    inClassOpt.setRequired(true);

    Option optFileOpt = OptionBuilder.create(OPTIONS_FILE);
    optFileOpt.setArgName("FILE");
    optFileOpt.setDescription("Properties file holding the options to be used in the Kyanos Resource");
    optFileOpt.setArgs(1);

    options.addOption(inputOpt);
    options.addOption(inClassOpt);
    options.addOption(optFileOpt);

    CommandLineParser parser = new PosixParser();

    try {
        PersistenceBackendFactoryRegistry.getFactories().put(NeoBlueprintsURI.NEO_GRAPH_SCHEME,
                new BlueprintsPersistenceBackendFactory());

        CommandLine commandLine = parser.parse(options, args);

        URI uri = NeoBlueprintsURI.createNeoGraphURI(new File(commandLine.getOptionValue(IN)));

        Class<?> inClazz = KyanosGraphQueryClassDeclarationAttributes.class.getClassLoader()
                .loadClass(commandLine.getOptionValue(EPACKAGE_CLASS));
        inClazz.getMethod("init").invoke(null);

        ResourceSet resourceSet = new ResourceSetImpl();
        resourceSet.getResourceFactoryRegistry().getProtocolToFactoryMap()
                .put(NeoBlueprintsURI.NEO_GRAPH_SCHEME, PersistentResourceFactory.eINSTANCE);

        Resource resource = resourceSet.createResource(uri);

        Map<String, Object> loadOpts = new HashMap<String, Object>();

        if (commandLine.hasOption(OPTIONS_FILE)) {
            Properties properties = new Properties();
            properties.load(new FileInputStream(new File(commandLine.getOptionValue(OPTIONS_FILE))));
            for (final Entry<Object, Object> entry : properties.entrySet()) {
                loadOpts.put((String) entry.getKey(), (String) entry.getValue());
            }
        }
        resource.load(loadOpts);
        {
            LOG.log(Level.INFO, "Start query");
            long begin = System.currentTimeMillis();
            HashMap<String, EList<NamedElement>> list = JavaQueries.getClassDeclarationAttributes(resource);
            long end = System.currentTimeMillis();
            LOG.log(Level.INFO, "End query");
            LOG.log(Level.INFO,
                    MessageFormat.format("Query result contains {0} elements", list.entrySet().size()));
            LOG.log(Level.INFO, MessageFormat.format("Time spent: {0}", MessageUtil.formatMillis(end - begin)));
        }

        if (resource instanceof PersistentResourceImpl) {
            PersistentResourceImpl.shutdownWithoutUnload((PersistentResourceImpl) resource);
        } else {
            resource.unload();
        }

    } catch (ParseException e) {
        MessageUtil.showError(e.toString());
        MessageUtil.showError("Current arguments: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("java -jar <this-file.jar>", options, true);
    } catch (Throwable e) {
        MessageUtil.showError(e.toString());
    }
}

From source file:edu.ucla.cs.scai.swim.qa.ontology.dbpedia.tipicality.Test.java

public static void main(String[] args) throws IOException, ClassNotFoundException {
    String path = DBpediaOntology.DBPEDIA_CSV_FOLDER;
    if (args != null && args.length > 0) {
        path = args[0];// w  w  w  . ja v  a  2 s. co m
        if (!path.endsWith("/")) {
            path = path + "/";
        }
    }

    stopAttributes.add("http://www.w3.org/1999/02/22-rdf-syntax-ns#type");
    stopAttributes.add("http://www.w3.org/2002/07/owl#sameAs");
    stopAttributes.add("http://dbpedia.org/ontology/wikiPageRevisionID");
    stopAttributes.add("http://dbpedia.org/ontology/wikiPageID");
    stopAttributes.add("http://purl.org/dc/elements/1.1/description");
    stopAttributes.add("http://dbpedia.org/ontology/thumbnail");
    stopAttributes.add("http://dbpedia.org/ontology/type");

    try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(path + "counts.bin"))) {
        categories = (HashSet<String>) ois.readObject();
        attributes = (HashSet<String>) ois.readObject();
        categoryCount = (HashMap<String, Integer>) ois.readObject();
        attributeCount = (HashMap<String, Integer>) ois.readObject();
        categoryAttributeCount = (HashMap<String, HashMap<String, Integer>>) ois.readObject();
        attributeCategoryCount = (HashMap<String, HashMap<String, Integer>>) ois.readObject();
    }

    System.out.println(categories.size() + " categories found");
    System.out.println(attributes.size() + " attributes found");

    n = 0;
    for (Map.Entry<String, Integer> e : categoryCount.entrySet()) {
        n += e.getValue();
    }

    System.out.println(n);

    HashMap<String, ArrayList<Pair>> sortedCategoryAttributes = new HashMap<>();

    for (String category : categories) {
        //System.out.println(category);
        //System.out.println("-----------");
        ArrayList<Pair> attributesRank = new ArrayList<Pair>();
        Integer c = categoryCount.get(category);
        if (c == null || c == 0) {
            continue;
        }
        HashMap<String, Integer> thisCategoryAttributeCount = categoryAttributeCount.get(category);
        for (Map.Entry<String, Integer> e : thisCategoryAttributeCount.entrySet()) {
            attributesRank.add(new Pair(e.getKey(), 1.0 * e.getValue() / c));
        }
        Collections.sort(attributesRank);
        for (Pair p : attributesRank) {
            //System.out.println("A:" + p.getS() + "\t" + p.getP());
        }
        //System.out.println("===============================");
        sortedCategoryAttributes.put(category, attributesRank);
    }

    for (String attribute : attributes) {
        //System.out.println(attribute);
        //System.out.println("-----------");
        ArrayList<Pair> categoriesRank = new ArrayList<>();
        Integer a = attributeCount.get(attribute);
        if (a == null || a == 0) {
            continue;
        }
        HashMap<String, Integer> thisAttributeCategoryCount = attributeCategoryCount.get(attribute);
        for (Map.Entry<String, Integer> e : thisAttributeCategoryCount.entrySet()) {
            categoriesRank.add(new Pair(e.getKey(), 1.0 * e.getValue() / a));
        }
        Collections.sort(categoriesRank);
        for (Pair p : categoriesRank) {
            //System.out.println("C:" + p.getS() + "\t" + p.getP());
        }
        //System.out.println("===============================");
    }

    HashMap<Integer, Integer> histogram = new HashMap<>();
    histogram.put(0, 0);
    histogram.put(1, 0);
    histogram.put(2, 0);
    histogram.put(Integer.MAX_VALUE, 0);

    int nTest = 0;

    if (args != null && args.length > 0) {
        path = args[0];
        if (!path.endsWith("/")) {
            path = path + "/";
        }
    }

    for (File f : new File(path).listFiles()) {
        if (f.isFile() && f.getName().endsWith(".csv")) {
            String category = f.getName().replaceFirst("\\.csv", "");
            System.out.println("Category: " + category);
            ArrayList<HashSet<String>> entities = extractEntities(f, 2);
            for (HashSet<String> attributesOfThisEntity : entities) {
                nTest++;
                ArrayList<String> rankedCategories = rankedCategories(attributesOfThisEntity);
                boolean found = false;
                for (int i = 0; i < rankedCategories.size() && !found; i++) {
                    if (rankedCategories.get(i).equals(category)) {
                        Integer count = histogram.get(i);
                        if (count == null) {
                            histogram.put(i, 1);
                        } else {
                            histogram.put(i, count + 1);
                        }
                        found = true;
                    }
                }
                if (!found) {
                    histogram.put(Integer.MAX_VALUE, histogram.get(Integer.MAX_VALUE) + 1);
                }
            }
            System.out.println("Tested entities: " + nTest);
            System.out.println("1: " + histogram.get(0));
            System.out.println("2: " + histogram.get(1));
            System.out.println("3: " + histogram.get(2));
            System.out.println("+3: " + (nTest - histogram.get(2) - histogram.get(1) - histogram.get(0)
                    - histogram.get(Integer.MAX_VALUE)));
            System.out.println("NF: " + histogram.get(Integer.MAX_VALUE));
        }
    }
}