What is the purpose of a default constructor?

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What is return keyword in java?

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String Reverse in Java...!

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When should a function throw an exception?

0 Answers   Thomson Reuters, Virtusa,

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Explain list interface?

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Why is static used?

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how a programmer confirms that the data submitted has been succesfully inserted into the database(either oracle or my sql).. How a programmer confirm if there is any problem with the program he wrote for insertion... ANS:--- >executeupdate method is having boolean return type, if anything goes wrong in data insertion or data updation, it would return false. otherwise, if it successfully inserts data into the database, it would return true NOW HOW TO I CHECK IN MY DURING EXECUTION WHETHER IT RETURNS TRUE OR FALSE... WELL IT WILL DISPLAY ANY MESSAGE OR NOT

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What is the purpose of file class?

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Can we have a try block without catch block?

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what is the difference between Java Command Line and C command Line?

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Can we declare the static variables and methods in an abstract class?

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Give few difference between constructor and method?

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