Can a string be null?
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What if constructor is protected in java?
What are 5 boolean operators?
Explain pass by reference and pass by value?
Define interface?
How objects of a class are created if no constructor is defined in the class?
What is flush buffer?
What is the difference between a field variable and a local variable?
if u open login & logout ,how can udisplay the timelogin & logout members ?
what is Thread priority?
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Difference between static methods, static variables, and static classes in Java.
Can we assign the reference to this variable?
Differentiate Vector and ArrayList?