Example usage for java.util Map get

Introduction

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

Prototype

V get(Object key);

Source Link

Document

Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

Usage

From source file:Main.java

public static void printDetails(Map<String, String> map) {
    String usage = map.get("CSS");
    System.out.println("Map: " + map);
    System.out.println("Map Size:  " + map.size());
    System.out.println("Map is empty:  " + map.isEmpty());
    System.out.println("Map contains CSS key:   " + map.containsKey("CSS"));
    System.out.println("Usage:  " + usage);
    System.out.println("removed:  " + map.remove("CSS"));
}

From source file:WordCount.java

static void addWord(Map map, String word) {
    Object obj = map.get(word);
    if (obj == null) {
        map.put(word, ONE);/*w  w  w  . java  2  s .c o  m*/
    } else {
        int i = ((Integer) obj).intValue() + 1;
        map.put(word, new Integer(i));
    }
}

From source file:Main.java

public static Object getKeyFromValue(Map hm, Object value) {
    for (Object o : hm.keySet()) {
        if (hm.get(o).equals(value)) {
            return o;
        }//from www.ja  va  2  s. c  o  m
    }
    return null;
}

From source file:Main.java

public static <K, V> V getOrElse(Map<K, V> m, K k, V def) {
    V v = m.get(k);
    if (v != null)
        return v;
    else/*from ww w .ja va 2s.c  o  m*/
        return def;
}

From source file:Main.java

public static String getInclude(Map<String, Object> param) {
    return (String) param.get("include");
}

From source file:Main.java

public static Object get(String attribute) {
    Map map = (Map) SESSION_MAP.get();
    return map.get(attribute);
}

From source file:Main.java

public static String getMapValueAsString(Map<String, Object> list, String key) {
    return list.get(key).toString();
}

From source file:Main.java

public static void addIntValue(Map map, Object key, int value) {
    Object o = map.get(key);
    if (o == null)
        map.put(key, new Integer(value));
    else/* w w w  . j a  v  a 2s .c o m*/
        map.put(key, new Integer(((Integer) o).intValue() + value));
}

From source file:Main.java

public static <K, V> List<V> getValueList(Map<K, List<V>> map, K key) {
    List<V> valueList = map.get(key);
    if (valueList == null)
        return Collections.emptyList();
    return valueList;
}

From source file:Main.java

public static <K, V> Set<V> getValueSet(Map<K, Set<V>> map, K key) {
    Set<V> values = map.get(key);
    if (values == null)
        return Collections.emptySet();

    return values;
}