What is java util hashmap?
How many digits can a float hold?
What is singleton math?
If an object reference is set to null, will the garbage collector immediately free the memory held by that object?
Tell me the Importent classes in net package?
Is 'null' a keyword?
What is constructor chaining in java?
What are the data types supported by java? What is autoboxing and unboxing?
What is a protected method?
What is java lang string?
What are the advantages of exception handling?
What is difference between Iterator and for loop
Define linked list and its features with signature?