Variables used in a switch statement can be used with which datatypes?

0 Answers  

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which class to use when concatenating strings in a loop.

3 Answers   IBM,

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. Differentiate between instance and local variables.

1 Answers  

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Explain the difference between comparator and comparable in java?

0 Answers  

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Can we convert stringbuilder to string in java?

0 Answers  

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Explain the polymorphism principle?

0 Answers  

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What is the method overriding?

0 Answers  

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What is an exception?

6 Answers  

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You're given a Boolean 2D matrix, can you find the number of islands?

0 Answers   Amazon,

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What is the importance in context in JDBC connection pools?

2 Answers   iFlex,

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what r callable statement and give their proper use

2 Answers  

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explain the life cycle of thread?

10 Answers   CTS, NIIT, TCS,

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