Diferrence between throws ,throw and throwable

Question

i need basic difference between throw ,throws and throwable in java with examples where these things can be implemented
thanx a lot in advance for ur answers

Answer 1

Hi,
throw - It is used to throw an Exception.The throw statement requires a single argument : a throwable
class object
throws - This is used to specifies that the method can throw exception
Throwable - you can throw only objects that derive from the Throwable class
Refer http://java.sun.com/docs/books/tutorial/essential/exceptions/throw.html for details
Ex.
public ExceptionClass( String name )
    throws NullPointerException //NullPoinerException extends throwable class
       if ( name == null )
     throw new NullPointerException( );
    }-Amol