What must a class do to implement an interface?
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what is singleton class? where it mainly used in the projects?
Explain phantom read?
What is a class loader? What are the different class loaders used by jvm?
What is the use of Class.forName
Can I run seam with jdk 1.4 and earlier?
Can we sent objects using Sockets?
Differences between applications and applets?
To what value is a variable of the string type automatically initialized?
Explain Object Serialization and it can be used?
What is multi-tasking? Types?
types of exceptions
Which javutil classes and interfaces support event handling?