Is it possible to write a regular expression to check if string is a number?
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What are the principle concepts of oops?
Why does the integer quotient -0/3 yield 0, but the double quotient -0.0/3.0 yields – 0.0?
what is inner class in java?
What is string builder in java?
Is java a virus?
Are private methods final?
Difference between prefix and postfix forms of the ++operator?
Why put method is idempotent?
what is the difference between statis block and static variable
Is 0 true or is 1 true?
What are the Object and Class that classes used for?
Why java is called not pure object oriented language?