What is a nested class?
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What are predicates in java 8?
Hi Friends, I am beginner in java. what i know about synchonized keyword is,If more that one 1 thread tries to access a particular resource we can lock the method using synchronized keyword. Then after that how the lock is released and how next thread access that.Please explain with example.
Differentiate between class and structure.
Why do people says “java is robust”?
Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?
What are the differences between include directive and include action?
What is a protected method?
Why java is called not pure object oriented language?
Can a constructor be private and how are this() and super() method used with constructor?
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Is null an object in java?
What happens when you invoke a thread’s interrupt method while it is sleeping or waiting?
What is the difference between superclass and subclass?
Core Java 
