What is singleton pattern?
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How many times finalize method will be invoked? Who invokes finalize() method in java?
List types of storage classes in java?
What is the default size of load factor in hashing based collection?
Difference difference paint() and paintcomponent()?
Why we use protected in java?
what is difference between excute query ()and execute update ()?
How many wrapper classes are there in java?
Is null or empty java?
What is length in java?
what is meant by encapsulation?
What is aggregation?
Explain the use of shift operator in java. Can you give some examples?