What is a boolean in java?
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When we will use an Interface and Abstract class?
how its run?
Is node a data type in java?
Marker interface means , interface which has no methods.Then what is the necessity of its usage.I read "it tells the compiler that it should be treated differently ". "It is used to store state of an object". But still am not clear.Please explain clearly.
Write a program to search a number in the given list of numbers.
What is the length of a string?
use of wrapper classes?
What is an abstract class and abstract method?
How does finally block differ from finalize() method?
What are different access specifiers in java?
Does printwriter create a file?
What happens to a static var that is defined within a method of a class?