Can we override constructor in java?
What is an immutable class?
what is the use of StringBuffer?
What is the purpose of checked and unchecked exceptions in JAVA?
What is the difference between constructor and method?
What are the changes in java.io in java 8 ?
Can a set contain duplicates?
What is OOPs & Why?
Is nullpointerexception checked or unchecked?
What is sortedmap interface?
What is a functional interface?
What is the default value of an object reference declared as an instance variable?
How GC (Garbage Collector) knows the objects reference is unused.Whether GC removes the unused object Parmanently or it maintains something.