How finally used under exception handling?
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Differentiate between a class and an object.
What is singleton class and how can we make a class singleton?
if arraylist size is increased from initial size what is the size of arraylist...suppose initial is 100 , if i add 101 element what is the size...
How many tetrahedral voids are there in bcc?
What is the use of runnable interface?
What do you mean by Remote procedure call?
What is the arraylist in java?
What is a null point?
7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
What is gc()?
How do you escape a string?
Explain about narrowing conversion in java?