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What is ClassCastException?

August 25th, 2009 by uCertify Leave a reply »

A ClassCastException extends from the RuntimeException class. It is thrown when an attempt is made to cast an object, which is not of the appropriate run-time type. For example:

Object obj = new Vector();
String s = (String) obj;

Following are the two kinds of constructors for ClassCastException:

  • ClassCastException()

    It will construct a ClassCastException without any detailed message.

  • ClassCastException(String str)

    It will construct a ClassCastException with the specified detailed message.

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