What is autoboxing and unboxing?
How can we make a class singleton?
How to print an arraylist in java?
How can a gui component handle its own events in java programming?
Explain the use of shift operator in java. Can you give some examples?
How many wrapper classes are there in java?
What are different types of arrays?
Can an object subclass another object?
Is integer immutable in java?
What is the difference between replace and replace all?
Can we have any code between try and catch blocks?
What is identifier give example?
Explain the difference between private, public, package and protected in java?
What is the difference between variable declaration and variable initialization?
What is the use of put method?