30. throws declaration

• The syntax for the declaration of a method that throws exceptions:

  
      modifiers returnType methodName( [parameterList] )
          throws exceptionList {}
  
  

• A method that throws an IOException:

  
      public static long getFileLength() throws IOException
      {
          RandomAccessFile in =
              new RandomAccessFile( path, "r" );
          long length = in.length();   // may throw IOException
          return length;
      }
  
  

• A method that throws an Exception

  
      public static void myMethod() throws Exception
      {
          throw new Exception( "Exception generated in myMethod" );
      }
  }