Can we override protected method in java?


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More Core Java Interview Questions

What is the use of :: in java?

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what is mean by method signature?

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Wha is the output from system.out.println(“hello”+null); ?

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Suppose there is an Online shopping cart application having different objects like Cart, SelectionItem, Billing, COnfiguration, Authentication, Authorization, PersonalDetails etc. Out of this which one can be made a singleton pattern and why?

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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?

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What is the difference between serializable and externalizable interfaces?

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what is predefined function in java?

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How to display arraylist values in java?

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How do you differentiate abstract class from interface?

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Is singleton a bad practice?

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How do you sort a list in java?

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What are the uses of synchronized keyword?

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