The java.util.WeakHashMap.isEmpty() method of
HashMap class is used to check for the emptiness of the map. The method returns True if no key-value pair or mapping is present in the map else False.
Syntax:
Weak_Hash_Map.isEmpty()
Parameters: The method does not take any parameters.
Return Value: The method returns boolean true if the map is empty or does not contain any mapping pairs else boolean false.
Below programs illustrates the working of java.util.WeakHashMap.isEmpty() method:
Program 1: Mapping String Values to Integer Keys.
Output:
The Mappings are: {Welcomes=25, 4=15, You=30, Geeks=20}
Is the map empty? false
Program 2: For an empty WeakHashMap
