Why put method is idempotent?
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Can a singleton class be inherited?
i need to know the site which compiles and run the java program completely in online... thank you for your reply in advance
What technique is carried out to find out if a particular string is empty?
Scenario: There are 1 to 100 numbers. Each number should be keep in the each column like from A column to Z column ie 1 to 26. From 27 to 52 should be in 2nd row in the excel sheet. This has to be continue till 100. How do you write Java program and what are various methods.
How can we access some class in another class in java?
What are the principle concepts of oops?
can we override the main() method in java????
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What are virtual methods?
What does the ‘static’ keyword mean? Is it possible to override private or static method in java?
What is heterogeneous in java?
What are the disadvantages of object oriented programming?
Explain all java features with real time examples