Remove all values from HashMap object. - Java Collection Framework

Java examples for Collection Framework:HashMap

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Description

Remove all values from HashMap object.

Demo Code

 
import java.util.HashMap;
 
public class Main {
 
  public static void main(String[] args) {
    HashMap hMap = new HashMap();
   /*  ww  w .  ja  v  a2s  .c  om*/
    hMap.put("1","One");
    hMap.put("2","Two");
    hMap.put("3","Three");
 
    hMap.clear();
   
    System.out.println("Total key value pairs in HashMap are : " + hMap.size());
  }
}

Result


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