What are abstract classes and anonymous classes?
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What are memory tables?
What are recursive functions?
What is meant by anonymous class?
How many ways can we create singleton class?
StringBuilder s = new StringBuilder("Hello Mom");s.append(",I mean,Mother"); Response.Write(s.ToString()); String s = "Hello Mom"; s+ = ",I mean Mom"; Response.Write(s); Which is faster ? which uses the most memory?
What is an immutable class? How to create an immutable class?
Explain the difference between the Boolean & operator and the && operator?
Is string serializable in java?
What is casting?
If a multi threaded Java program has started numerous number of threads, at any point in time how to know which thread is currently executing/running ?
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What is public static?