What is comparable and comparator interface? List their differences
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Explain how to convert any java object into byte array.
How do you implement singleton class?
Does java support multiple inheritances?
When a thread is executing a synchronized method , then is it possible for the same thread to access other synchronized methods of an object ?
what is auto boxing
What is void in java?
What is a finally block? Is there a case when finally will not execute?
4.1 Supply contracts (in the form of comments specifying pre- and post conditions) for the enqueue() method of the LinkedQueue class given in the Appendix. (2) 4.2 Let Thing be a class which is capable of cloning objects, and consider the code fragment: Thing thing1 = new Thing(); //(1) Thing thing2 = thing1; //(2) Thing thing3 = (Thing) thing1.clone(); //(3) Explain how the objects thing2 and thing3 differ from each other after execution of the statements. (
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Give us the name of the list layoutmanagers in java?
How to reverse a string in java?
What is the mapping mechanism used by java to identify IDL language?