What is a singleton class in Java?
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Can classes declared using the abstract keyword cab be instantiated?
What is thread priority?
What is a double vs float?
What is difference between compatible and incompatible changes in serialization?
string is immutable? right every one knows that, my question is it advantage or disadvantage making string immutable?
What Is Resource Leak?
What is the main purpose of serialization in java?
Is treeset sorted in java?
Which is easier netbeans or eclipse?
Why volatile is used in java?
What are the skills required for core java?
when asub class inherits a super class and overrides a public method of super class in sub class(public method in super class). why these methods needs to be public in sub class. (otherwise compile time error).