What is the advantage of functional interface in java 8?
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Why do we need singleton?
Is null a string?
What is the middleware?
Is arraylist sorted in java?
This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }
Can a double value be cast to a byte?
Difference between arraylist and vector.
What is difference between protected and private?
Explain the difference between getAppletInfo and getParameterInfo?
How variables are declared?
What are exceptions
Explain the importance of throwable class and its methods?