What is javac in java?
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Why string is popular hashmap key in java?
If there is no implementation of MARKER INTERFACE in java. Then how compiler come to know about specification.
Give differences between Quicksort & Mergesort. When should these sorts be used and what is their running time?
Why java is considered dynamic?
What is autoboxing and unboxing?
What is string and example?
How we can make copy of a java object?
Which method is used to find that the object is exited or not?
What is classpath?
What is the common usage of serialization? What exceptions occur during serialization?
What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?
What is a wrapper method?