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Remove all values from Java LinkedHashMap example

  1. /*
  2.   Remove all values from Java LinkedHashMap example
  3.   This Java Example shows how to remove all values from LinkedHashMap object or empty
  4.   LinkedHashMap or clear LinkedHashMap using clear method.
  5. */
  6.  
  7. import java.util.LinkedHashMap;
  8.  
  9. public class EmptyLinkedHashMapExample {
  10.  
  11.   public static void main(String[] args) {
  12.    
  13.     //create LinkedHashMap object
  14.     LinkedHashMap lHashMap = new LinkedHashMap();
  15.    
  16.     //add key value pairs to LinkedHashMap
  17.     lHashMap.put("1","One");
  18.     lHashMap.put("2","Two");
  19.     lHashMap.put("3","Three");
  20.  
  21.     /*
  22.       To remove all values or clear LinkedHashMap use
  23.       void clear method() of LinkedHashMap class. Clear method removes all
  24.       key value pairs contained in LinkedHashMap.
  25.     */
  26.    
  27.     lHashMap.clear();
  28.    
  29.     System.out.println("Total key value pairs in LinkedHashMap are : "
  30.                                                         + lHashMap.size());
  31.   }
  32. }
  33.  
  34. /*
  35. Output would be
  36. Total key value pairs in LinkedHashMap are : 0
  37. */