What is the difference between a factory and abstract factory pattern?
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how tha garbage collector know that the object will be deleted? on which algorithm the garbage collector works? what is the working principle of garbage collector? How manay types of garbage collectors r there?
What is the purpose of declaring a variable as final?
What is files manifesting?
What is a void method?
What is java argument list?
what is mutability?which one is mutable String or StringBuffer?and why?give examples of each which shows the mutability of each String or StringBuffer
How to perform merge sort in java?
How do you use compareto in java?
Explain about wait() method?
Is java hard to learn?
Can you change array size in java?
Which class is used by server applications to obtain a port and listen for client requests?