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# Class java.lang.RuntimeException

    java.lang.Object
       |
       +----java.lang.Throwable
               |
               +----java.lang.Exception
                       |
                       +----java.lang.RuntimeException

public class RuntimeException
extends Exception

`RuntimeException` is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.

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.

##

RuntimeException()
  Constructs a `RuntimeException` with no detail message.
RuntimeException(String)
  Constructs a `RuntimeException` with the specified detail message.

##

RuntimeException

     public RuntimeException()

  Constructs a `RuntimeException` with no detail message.

RuntimeException

     public RuntimeException(String s)

  Constructs a `RuntimeException` with the specified detail message.

  Parameters:
    s - the detail message.

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