Example usage for java.util Map entrySet

Introduction

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

Prototype

Set<Map.Entry<K, V>> entrySet();

Source Link

Document

Returns a Set view of the mappings contained in this map.

Usage

From source file:Main.java

public static String parseFromMap(Map<String, String> mappy) {
    StringBuilder sb = new StringBuilder();

    for (Map.Entry<String, String> e : mappy.entrySet()) {
        if (sb.length() > 0) {
            sb.append(LINE_SEP);/*from w ww .jav  a 2 s . co  m*/
        }
        sb.append(e.getKey()).append(EQUALS).append(e.getValue());
    }

    return sb.toString();
}

From source file:Main.java

public static <T, E> T getKeyByValue(Map<T, E> map, E value) {
    if (map == null) {
        return null;
    }//  w  w  w . j  a  v  a 2 s .c  o  m

    for (Entry<T, E> entry : map.entrySet()) {
        if (entry.getValue().equals(value)) {
            return entry.getKey();
        }
    }
    return null;
}

From source file:Main.java

public static void listEntries(Map<String, String> map) {
    System.out.println("Entry Set:");

    // Get the entry Set
    Set<Map.Entry<String, String>> entries = map.entrySet();
    entries.forEach((Map.Entry<String, String> entry) -> {
        String key = entry.getKey();
        String value = entry.getValue();
        System.out.println("key=" + key + ",  value=" + value);
    });/*from ww w.j  a  va  2s  .c om*/
}

From source file:Main.java

public static JSONObject parseToJSONObject(Map<String, Object> map) {
    JSONObject jsonObject = new JSONObject();
    for (Entry<String, Object> entry : map.entrySet()) {
        try {/*from ww w .  j  a va2 s .c o  m*/
            jsonObject.put(entry.getKey(), entry.getValue());
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    return jsonObject;
}

From source file:com.joliciel.frenchTreebank.util.DaoUtils.java

public static void LogParameters(Map<String, Object> paramMap) {
    if (LOG.isDebugEnabled()) {
        for (Object obj : paramMap.entrySet()) {
            @SuppressWarnings("rawtypes")
            Entry entry = (Entry) obj;// ww w  .  jav  a2s.co m
            LOG.debug(
                    entry.getKey() + ": " + (entry.getValue() == null ? "null" : entry.getValue().toString()));
        }
    }
}

From source file:Main.java

/**
 * Formats HTTP headers./*from  w  ww. j  a v a  2s  . c  om*/
 * 
 * @param headers
 *            The headers.
 * @return Headers as a string
 */
private static String formatHttpHeaders(Map<String, String> headers) {
    StringBuilder sb = new StringBuilder();
    for (Map.Entry<String, String> header : headers.entrySet()) {
        sb.append(String.format("%s : %s\n", header.getKey(), header.getValue()));
    }
    return sb.toString();
}

From source file:Main.java

/**
 * /*from  w  w  w  .j  ava2s.co  m*/
 * @param <T>
 * @param <U>
 * @param map
 * @return
 */
public static <T, U extends Comparable<U>> T getGreatest(Map<T, U> map) {
    T max_key = null;
    U max_value = null;
    for (Entry<T, U> e : map.entrySet()) {
        T key = e.getKey();
        U value = e.getValue();
        if (max_value == null || value.compareTo(max_value) > 0) {
            max_value = value;
            max_key = key;
        }
    } // FOR
    return (max_key);
}

From source file:MapUtils.java

/**
 * Sorts map by values in ascending order.
 * //from   w w w. j a v a 2  s . c om
 * @param <K>
 *            map keys type
 * @param <V>
 *            map values type
 * @param map
 * @return
 */
public static <K, V extends Comparable<V>> LinkedHashMap<K, V> sortMapByValue(Map<K, V> map) {
    List<Entry<K, V>> sortedEntries = sortEntriesByValue(map.entrySet());
    LinkedHashMap<K, V> sortedMap = new LinkedHashMap<K, V>(map.size());
    for (Entry<K, V> entry : sortedEntries) {
        sortedMap.put(entry.getKey(), entry.getValue());
    }

    return sortedMap;
}

From source file:Main.java

/**
 * Returns a map of all values in <b>a</b> who's value is not a
 * key in <b>b</b>.//from   w  w w  .j  a  va 2  s .co  m
 *
 * @param a The source map of key value pairs used to populate
 * the resulting map.
 *
 * @param b The exclusion map, who's keys are the exclusions
 * matching map <b>a</b>'s values.
 *
 * @return a map of all values in <b>a</b> who's value is not a
 * key in <b>b</b>.
 */
public static <K, V> Map<K, V> outerJoin(Map<K, V> a, Map<V, ?> b) {
    Map<K, V> buffer = new HashMap<K, V>();

    for (Map.Entry<K, V> entry : a.entrySet()) {
        if (!b.containsKey(entry.getValue())) {
            buffer.put(entry.getKey(), entry.getValue());
        }
    }

    return buffer;
}

From source file:org.eclipse.dirigible.cli.apis.ImportProjectAPI.java

private static void addHeaders(HttpPost postRequest, Map<String, String> headers) {
    for (Entry<String, String> header : headers.entrySet()) {
        postRequest.setHeader(header.getKey(), header.getValue());
    }/*  w  ww  . j  a  v a 2s .c o  m*/
}