Can an integer be null java?
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Why arraylist is not synchronized in java example?
What are the differences between stringbuffer and stringbuilder?
What does @override mean?
Why we use protected in java?
How is java created?
what is the form of storage space in java?
What happens when you invoke a thread’s interrupt method while it is sleeping or waiting?
Describe the Big-O Notation.
What is lambda in java?
What is meant by JVM ?
Are private methods final?
can abstract class have constructor how can you achive this ?