What are the disadvantages of using inner classes?
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Give example to differentiate between call by value and call by reference.
Can anonymous class have constructor?
Define a package.
Does hashset allow duplicates in java?
Is java jre still free?
Why singleton is not thread safe?
Do I need to import java.lang package any time? Why?
What is the difference between the synchronized() & static synchronized()?
How do I stop concurrentmodificationexception?
What is a qualifier in a sentence?
Give differences between Quicksort &Mergesort. When should these sorts be used andwhat is their running time in java?
Which class is extended by all other classes?