What is collection class in java?
Differentiate between the constructors and methods in java?
What are the main concepts of oops in java?
Why java strings are immutable in nature?
What are the autowiring modes?
Is there a case when finally will not execute?
What purpose do the keywords final, finally, and finalize fulfill?
What are the different types of garbage collectors in java?
What is a finally block?
What are the two ways to create a thread?
Can we write multiple catch blocks under single try block?
What are the differences between processes and threads?
How to create a custom exception?
What is exception hierarchy in java?
What is difference between overloading and overriding in java?