Explain wrapper classes in java?
Explain differences between collection api and stream api?
Which package is used for pattern matching with regular expressions?
What is the difference between instanceof and isinstance?
If there is no implementation of MARKER INTERFACE in java. Then how compiler come to know about specification.
What does \ mean in regex?
What is a war file?
What is the function of compareto in java?
what are literals in java?
What is meant by overloading?
How will you create the class for the following scenario? Employees under one employee?
What's the base class in java from which all classes are derived?
What is meant by inheritance and what are its advantages?