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#Java - Code Snippets for '#Hashmap' - 6 code snippet(s) found

 Sample 1. Usage of Apache Commons - ArrayListValuedHashMap

ListValuedMap<String,String> listValuedMap = new ArrayListValuedHashMap();
listValuedMap.put("United States", "Washington");
listValuedMap.put("Canada", "Ottawa");
listValuedMap.put("Canada", "Ottawa");
listValuedMap.put("South Africa", "Pretoria");
listValuedMap.put("South Africa", "Cape Town");
listValuedMap.put("South Africa", "Bloemfontein");

System.out.println(listValuedMap); // Values being added to the List and allow even duplicates

   Like      Feedback     apache commons  apache commons collections  ArrayListValuedHashMap  ListValuedMap


 Sample 2. Usage of LinkedHashMap


Map<String,String> linkedhashmap = new LinkedHashMap();
linkedhashmap.put("United States", "Washington");
linkedhashmap.put("Canada", "Ottawa");
linkedhashmap.put("Canada", "Ottawa");
linkedhashmap.put("South Africa", "Pretoria");
linkedhashmap.put("South Africa", "Cape Town");
linkedhashmap.put("South Africa", "Bloemfontein");

System.out.println(linkedhashmap); // Duplicates not allowed as it's a Map, Insertion Order as its linked Map

   Like      Feedback     LinkedHashMap  Map  HashMap  java.util  collections framework


 Sample 3. Usage of Apache Commons - HashSetValuedHashMap

SetValuedMap<String,String> setValuedMap = new HashSetValuedHashMap();
setValuedMap.put("United States", "Washington");
setValuedMap.put("Canada", "Ottawa");
setValuedMap.put("Canada", "Ottawa");
setValuedMap.put("South Africa", "Pretoria");
setValuedMap.put("South Africa", "Cape Town");
setValuedMap.put("South Africa", "Bloemfontein");
      
System.out.println(setValuedMap); // Values being added to the Set and hence doesn't allow duplicates

   Like      Feedback     apache commons   apache commons collections  apache commons map   HashSetValuedHashMap  SetValuedMap


 Sample 4. Usage of HashMap

Map<Integer,String> indexedInfo = new HashMap();
indexedInfo.put(1,"Spain");
indexedInfo.put(2,"Denmark");
indexedInfo.put(3,"China");

   Like      Feedback     hashmap  map  collections  java.util.hashmap


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 Sample 5. Java 8 Map Merge Example ( Map.merge )

Map<String,String> intMap = new HashMap<String,String>();
strMap.put("Key1","Value1");
strMap.put("Key2", "Value2");
String str = strMap.merge("Key1","Value56",(v1,v2)->v1.substring(3).concat(v2));
System.out.println(str); // prints ue1Value56
System.out.println(strMap); // prints {Key2=Value2, Key1=ue1Value56}

   Like      Feedback     java 8  map.merge  map merge  hashmap  collections


 Sample 6. Java 8 MapMerge

Map<String,String> strMap = new HashMap<String,String>();
strMap.put("Key1","Value1");
strMap.put("Key2", "Value2");
String str = strMap.merge("Key4","Value56",(v1,v2)->v1.substring(3).concat(v2));
System.out.println(str); // prints Value56
System.out.println(strMap); // prints {Key2=Value2, Key1=Value1, Key4=Value56}

   Like      Feedback     java 8  map.merge  map merge  hashmap  collections



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