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## java.lang
Class ClassCastException

    java.lang.Object
      java.lang.Throwable
          java.lang.Exception
              java.lang.RuntimeException
                  java.lang.ClassCastException

All Implemented Interfaces:
  Serializable

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);

Since:
  JDK1.0
See Also:
  Serialized Form

Constructor Summary
`ClassCastException()` Constructs a `ClassCastException` with no detail message.
`ClassCastException(String s)` Constructs a `ClassCastException` with the specified detail message.

Methods inherited from class java.lang.Throwable
`fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### ClassCastException

    public ClassCastException()

  Constructs a `ClassCastException` with no detail message.

### ClassCastException

    public ClassCastException(String s)

  Constructs a `ClassCastException` with the specified detail message.

Parameters:
  `s` - the detail message.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.