What is the purpose of java?
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How GC (Garbage Collector) knows the objects reference is unused.Whether GC removes the unused object Parmanently or it maintains something.
How does system arraycopy work in java?
What is an array and a vector? How they different from each other?
Where are the local variables stored?
What are the classes of java?
What are the 3 types of control structures?
What are the operands of instanceof operator?
What is the purpose of the return statement?
What is the difference between the size and capacity of a vector?
I want to control database connections in my program and want that only one thread should be able to make database connection at a time. How can I implement this logic?
whats is inheritance?
15 Answers CTS, HCL,
What are different access specifiers in java? Explain