Q1. Difference between HashMap and WeakHashMap ?
Ans. WeakHashMap uses weak reference for keys, which means if the key object doesn't have any reference then both key/value mapping will become eligible for garbage collection.
Q2. Which interfaces are implemented by WeakHashMap?
Ans.[Serializable, Cloneable, Map]
Q3. Which is the Parent Class of WeakHashMap class?
Ans.AbstractMap
Q4. What is the package name for WeakHashMap class?
Ans.java.util
Ans. WeakHashMap uses weak reference for keys, which means if the key object doesn't have any reference then both key/value mapping will become eligible for garbage collection.
Q2. Which interfaces are implemented by WeakHashMap?
Ans.[Serializable, Cloneable, Map]
Q3. Which is the Parent Class of WeakHashMap class?
Ans.AbstractMap
Q4. What is the package name for WeakHashMap class?
Ans.java.util