How many types of memory areas are allocated by jvm?
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Hi Friends, I am new to java. Can u explain about thread concept.How i know one thread is locked, and how can i force or acquire another thread for lock . Finally how to know thread is released from lock. Explain types of lock(like method level and block level) in thread.
When should I use abstract classes and when should I use interfaces?
What are the advantages of java inner classes?
Is void a data type?
What are the difference between string, string builder, and string buffer in java?
What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?
enlist some features of jdk.
What is meant by serialisation and deserialisation?
Is array a class?
Can we override the static method?
What is java util?
Is map sorted in java?