Why singleton class is used in java?
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Explain jvm, jre, and jdk?
What is a map in java?
How to send a request to garbage collector?
Is java platform independent?
Can each java object keep track of all the threads that want to exclusively access it?
3) Suppose you are a very rich person, having 50 rooms and you have lost the key for one of the room's. How effectively you can find this key? (Qs2 and Qs3 are related)
Explain static nested classes ?
What is JDBC Driver interface?How can you retrieve data from the ResultSet
What is the method to declare member of a class static?
What are the string methods in java?
What do you understand by the term wrapper classes?
What are the parts of methodology?