a) What is an important property of the RuntimeException class that every Java p

Question

a) What is an important property of the RuntimeException class that every Java programmer should know?



b) Is a thrown exception and a runtime error the same thing? Explain.

Explanation / Answer

a)Important property : ==>RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the JVM. ==>A method is not required to declare in its throws clause any subclasses of RuntimeException that might be thrown during the execution of the method but not caught. b)Throw exception and runtime error are different. Exception should be consider the abstract base of the standard exception hierarchy. This is because there is no mechanism to pass in a specific message must derive and There is nothing to stop you using std::exception and for simple application it may be all you need. Runtime error on the other hand has valid constructors that accept a string as message. When what() is called a const char pointer is returned that points at a C string that has the same string as was passed into the constructor.

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