Explain purpose of sleep() method in java?
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Is linkedlist thread safe in java?
What are inner classes or non static nested classes in java?
How we create object in copy constructor?
I have a String s = java; What is the output when I say s.replaceAll('j', 'k'); Also what is the value of s after replacing?
What is the java project architecture?
What is Collections API?
can we write a program with out a class in core java?
What is encapsulation in java?
Can we extend immutable class?
Can a class have multiple superclasses?
Explain about arraylist?
What is the base class of all classes?