What is a void method?
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Is it possible to create object with out its default constructor? if possible how? else not possible? justify
Can we clone singleton class in java?
Can we override private methods?
perpare on factorypattern,linklist wothout using collection, (multitharding ie create producer/customer therad producer create Queue continuesly,consumer consume queue, consumer wait if queue is full,producer wait if queue is empty),diff betn sleep(1000)&wait(1000) these r the main Q ask in huawei(2008)
How is object created in java?
What is treemap in java?
How to declare unique ArrayList ?
What is adapter in java?
Is it necessary for the port addresses to be unique? Explain with reason.
2) Suppose there are 5 directories having lot of files (say txt files) in each directory. 2 things :- 2.1) You want to search for filenames which have a particular pattern. 2.2) Out of these filtered files you want to search for a particular keyword or a search string. How can you achieve this?
What are operators and its types?
What isan abstract class and when do you use it?