What are the advantages of user defined functions?
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What is a lock or purpose of locks in java?
Is singleton a bad practice?
Is set ordered?
What is the difference between error and an exception?
What will happen if there is a default method conflict as mentioned above and we have specified the same signature method in the base class instead of overriding in the existing class ?
What method is used to specify a container's layout in java programming?
how many ways we can serialize the java object?
What is aggregation and composition ?
Why volatile is used in java?
What types of inheritance does Java support?
Which collection is thread safe in java?
basic difference b/w ALL types of JDBC driver.