Difference between a class and an object?
Is java util list serializable?
Can we override constructor in java?
What are the performance implications of interfaces over abstract classes?
What is nullpointerexception in java?
What does += mean coding?
How many bytes is a string in java?
How to extract HashMap values?
Can we override private method in java?
Explain about assignment statement?
Can you call one constructor from another if a class has multiple constructors?
Distinguish method overloading and overriding
How static variable work in java?