https://blog.whyno.org/index.php?blogId=15 mode 2026-03-13T18:15:23Z https://blog.whyno.org/index.php?op=ViewArticle&articleId=219&blogId=15 <pre class="javascript"><div class="head">code</div><ol start="1"><li class="li1"><div class="de1"><span class="kw2">class</span> Car<span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="kw2">class</span> Wheel<span class="br0">{</span></div></li><li class="li1"><div class="de1"> </div></li><li class="li1"><div class="de1"> <span class="br0">}</span></div></li><li class="li1"><div class="de1"><span class="br0">}</span></div></li><li class="li1"><div class="de1">&nbsp;</div></li><li class="li1"><div class="de1"><span class="kw2">class</span> PlaneWheel <span class="kw2">extends</span> Car.<span class="me1">Wheel</span><span class="br0">{</span></div></li><li class="li1"><div class="de1"> PlaneWheel<span class="br0">(</span>Car car<span class="br0">)</span><span class="br0">{</span></div></li><li class="li1"><div class="de1"> car.<span class="kw2">super</span><span class="br0">(</span><span class="br0">)</span>;</div></li><li class="li1"><div class="de1"> <span class="br0">}</span></div></li><li class="li1"><div class="de1"> <span class="kw2">public</span> static <span class="kw1">void</span> main<span class="br0">(</span>String<span class="br0">[</span><span class="br0">]</span> args<span class="br0">)</span><span class="br0">{</span></div></li><li class="li1"><div class="de1"> Car car=<span class="kw2">new</span> Car<span class="br0">(</span><span class="br0">)</span>;</div></li><li class="li1"><div class="de1"> PlaneWheel pw=<span class="kw2">new</span> PlaneWheel<span class="br0">(</span>car<span class="br0">)</span>;</div></li><li class="li1"><div class="de1"> <span class="br0">}</span></div></li><li class="li1"><div class="de1"><span class="br0">}</span></div></li></ol></pre><p>&nbsp;</p> 一般分类 2006-11-13T20:17:18Z mode https://blog.whyno.org/index.php?op=ViewArticle&articleId=218&blogId=15 如果您阅读到这篇文章，这就意味着您注册的博客已经申请成功。 一般分类 2006-11-13T19:43:44Z mode