Which one will take more memory: an int or integer?
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What about static nested classes in java?
what is heap memory?
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I have a String s = java; What is the output when I say s.replaceAll('j', 'k'); Also what is the value of s after replacing?
What is the common usage of serialization? What exceptions occur during serialization?
Can a method inside a interface be declared as final?
What is hash table in java?
Difference between prefix and postfix forms of the ++operator?
What is singleton class in ruby?
Can I uninstall java?
What is a lambda expression ? What's its use ?
How do you allocate memory to object?
Differences between C and Java?