Write a singleton program?
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What are the methods used for inter-thread communication? and in what class these methods are defined?
What is serialization and de-serialization ?
How many times may an objects finalize() method be invoked by the garbage collector?
How substring() method of string class create memory leaks?
What is chat area? Explain.
What is a sessionfactory? Is it a thread-safe object?
Why won’t the jvm terminate when I close all the application windows?
What is a thread?
What method is used to create the daemon thread?
How would you create a button with rounded edges?
What is diffennce between AWT & SWING?
what is stringBuffer and StringBuilder?