Example usage for java.util LinkedHashMap clear

Introduction

In this page you can find the example usage for java.util LinkedHashMap clear.

Prototype

public void clear() 

Source Link

Usage

From source file:Main.java

public static void main(String[] args) {
    LinkedHashMap<String, String> lHashMap = new LinkedHashMap<String, String>();

    lHashMap.put("1", "One");
    lHashMap.put("2", "Two");
    lHashMap.put("3", "Three");

    lHashMap.clear();
    System.out.println(lHashMap.size());

}

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From source file:Main.java

public static void main(String[] args) {

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

    // add some values in the map
    map.put("One", 1);
    map.put("Two", 2);
    map.put("Three", 3);

    System.out.println(map);//from   w w  w .j a  v  a 2s. com

    // clear the map
    map.clear();

    System.out.println(map);
}

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From source file:Main.java

public static void main(String[] args) {

    LinkedHashMap<String, Integer> map = new LinkedHashMap<String, Integer>(5);

    // add some values in the map
    map.put("One", 1);
    map.put("Two", 2);
    map.put("Three", 3);

    System.out.println(map);/*from ww w  .j  av  a2  s .c o m*/

    // clear the map
    map.clear();

    System.out.println(map);
}

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From source file:Main.java

public static void main(String[] args) {

    LinkedHashMap<String, Integer> map = new LinkedHashMap<String, Integer>(5, 0.75F);

    // add some values in the map
    map.put("One", 1);
    map.put("Two", 2);
    map.put("Three", 3);

    System.out.println(map);//www .j  a va  2  s.c o  m

    // clear the map
    map.clear();

    System.out.println(map);
}

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From source file:Main.java

public static void main(String[] args) {

    LinkedHashMap<String, Integer> map = new LinkedHashMap<String, Integer>(5, 0.75F, true);

    // add some values in the map
    map.put("One", 1);
    map.put("Two", 2);
    map.put("Three", 3);

    System.out.println(map);//from   w  w w.  jav  a 2  s.  c  o m

    // clear the map
    map.clear();

    System.out.println(map);
}

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From source file:Main.java

public static <K, V> void sortMap(LinkedHashMap<K, V> map, Comparator<Map.Entry<K, V>> c) {
    List<Map.Entry<K, V>> entries = new ArrayList<>(map.entrySet());
    entries.sort(c);/*from   w w w .j ava  2  s . c  o  m*/
    map.clear();
    for (Map.Entry<K, V> e : entries) {
        map.put(e.getKey(), e.getValue());
    }
}

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From source file:Main.java

public static <K, V> void putAt(LinkedHashMap<K, V> map, K key, V value, int pos) {
    Iterator<Entry<K, V>> ei = map.entrySet().iterator();
    LinkedHashMap<K, V> pre = new LinkedHashMap<>();
    LinkedHashMap<K, V> post = new LinkedHashMap<>();

    for (int i = 0; i < pos; i++) {
        if (!ei.hasNext())
            break;
        Entry<K, V> tmpE = ei.next();
        pre.put(tmpE.getKey(), tmpE.getValue());
    }// w ww  .j a  v  a  2  s  .com
    // skip element at pos
    if (ei.hasNext())
        ei.next();
    while (ei.hasNext()) {
        Entry<K, V> tmpE = ei.next();
        post.put(tmpE.getKey(), tmpE.getValue());
    }

    map.clear();
    map.putAll(pre);
    map.put(key, value);
    map.putAll(post);
}

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From source file:com.google.gwt.emultest.java.util.LinkedHashMapTest.java

public void testClear() {
    LinkedHashMap<String, String> hashMap = new LinkedHashMap<String, String>();
    checkEmptyLinkedHashMapAssumptions(hashMap);

    hashMap.put("Hello", "Bye");
    assertFalse(hashMap.isEmpty());/*  w w  w. j  a  va 2  s .c o m*/
    assertTrue(hashMap.size() == SIZE_ONE);

    hashMap.clear();
    assertTrue(hashMap.isEmpty());
    assertTrue(hashMap.size() == 0);
}

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From source file:com.opengamma.component.factory.engine.EngineConfigurationComponentFactory.java

@Override
public void init(final ComponentRepository repo, final LinkedHashMap<String, String> configuration) {
    afterPropertiesSet();//from ww  w  .  ja  va2  s  .  c o m
    final Map<String, Object> map = new LinkedHashMap<String, Object>();
    buildConfiguration(repo, configuration, map);
    final Map<String, Object> outer = new LinkedHashMap<String, Object>();
    outer.put(DEFAULT_CONFIGURATION_DOCUMENT_ID, map);
    final DataConfigurationResource resource = new DataConfigurationResource(getFudgeContext(), outer);
    repo.getRestComponents().publishResource(resource);
    // indicate that all component configuration was used
    configuration.clear();
}

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From source file:com.google.gwt.emultest.java.util.LinkedHashMapTest.java

/**
 * Test method for 'java.util.LinkedHashMap.size()'.
 *///from   w w w .  ja  va  2s . c o  m
public void testSize() {
    LinkedHashMap<String, String> hashMap = new LinkedHashMap<String, String>();
    checkEmptyLinkedHashMapAssumptions(hashMap);

    // Test size behavior on put
    assertEquals(hashMap.size(), SIZE_ZERO);
    hashMap.put(KEY_1, VALUE_1);
    assertEquals(hashMap.size(), SIZE_ONE);
    hashMap.put(KEY_2, VALUE_2);
    assertEquals(hashMap.size(), SIZE_TWO);
    hashMap.put(KEY_3, VALUE_3);
    assertEquals(hashMap.size(), SIZE_THREE);

    // Test size behavior on remove
    hashMap.remove(KEY_1);
    assertEquals(hashMap.size(), SIZE_TWO);
    hashMap.remove(KEY_2);
    assertEquals(hashMap.size(), SIZE_ONE);
    hashMap.remove(KEY_3);
    assertEquals(hashMap.size(), SIZE_ZERO);

    // Test size behavior on putAll
    hashMap.put(KEY_1, VALUE_1);
    hashMap.put(KEY_2, VALUE_2);
    hashMap.put(KEY_3, VALUE_3);
    LinkedHashMap<String, String> srcMap = cloneLinkedHashMap(hashMap);
    hashMap.putAll(srcMap);
    assertEquals(hashMap.size(), SIZE_THREE);

    // Test size behavior on clear
    hashMap.clear();
    assertEquals(hashMap.size(), SIZE_ZERO);
}

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