What is a lambda expression ? What's its use ?
Describe what happens when an object is created in java ?
Difference between == and .equals() ?
What are default methods ?
Does constructor creates the object ?
What are the difference between composition and inheritance in java?
How is abstraction implemented in java ?
How can we disable a constraint ?
Does sql allow null values ? Can we use it within where clause ?
Write an sql to find all records having all numeric characters in a field ?
Explain the difference between inner and outer join ?
What are temp tables ?
What is database deadlock ?
What should be done for auto generating primary key id in a table ?
Can we have foreign key reference to a non primary key column ?