java.lang.Object | +----java.lang.Throwable | +----java.lang.Exception | +----java.lang.RuntimeException | +----java.lang.ClassCastException
public class ClassCastException
extends RuntimeException
Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance. For example, the following code generates a ClassCastException:
Object x = new Integer(0); System.out.println((String)x);