HashMap : isEmpty : Check whether Map is Empty or not

public boolean isEmpty()

Returns true if this map contains no key-value mappings.

import java.util.*;

class HashMapIsEmpty{
 public static void main(String args[]){
  HashMap<Integer, String> myMap;
  myMap = new HashMap<> ();
  
  System.out.print("Is myMap Empty ");
  System.out.println(myMap.isEmpty());
  
  /* Add Data to myMap */
  myMap.put(100, "Hi");
  myMap.put(25, "How");
  myMap.put(31, "Are");
  
  System.out.print("Is myMap Empty ");
  System.out.println(myMap.isEmpty());
 }
}

Output

Is myMap Empty true
Is myMap Empty false

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