op34b0f8bc0157.txt

软件工程方面的书籍

     * Tests if the specified object is a component in this vector.
     *
     * @param   elem   an object.
     * @return  <code>true</code> if the specified object is a component in
     *          this vector; <code>false</code> otherwise.
     * @since   JDK1.0