The Collections API is a set of classes and interfaces that support operations on collections of objects.
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What is the Collections API?
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If a checked exception may be thrown within the body of a method, the method must either catch the exception or declare it in its throws clause.
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Only public and abstract modifiers are allowed for methods in interfaces.
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What is Externalizable?
Posted by Devin
Externalizable is an Interface that extends Serializable Interface. And sends data into Streams in Compressed Format. It has two methods, writeExterna ...
All tasks must implement the run() method, whether they are a subclass of Thread or implement the Runnable interface.
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An unreachable object may become reachable again. This can happen when the object's finalize() method is invoked and the object performs an operation ...
How does a try statement determine which catch clause should be used to handle an exception?
Posted by Devin
When an exception is thrown within the body of a try statement, the catch clauses of the try statement are examined in the order in which they appear. ...
Daemon thread is a low priority thread which runs intermittently in the back ground doing the garbage collection operation for the java runtime system ...