史上最全Java面试题整理（附参考答案）

<span class="hljs-comment"&gt;/** * 存款 * <span class="hljs-doctag"&gt;@param money 存入金额 */ <span class="hljs-function"&gt;<span class="hljs-keyword"&gt;public <span class="hljs-keyword"&gt;synchronized <span class="hljs-keyword"&gt;void <span class="hljs-title"&gt;deposit<span class="hljs-params"&gt;(<span class="hljs-keyword"&gt;double money) { <span class="hljs-keyword"&gt;double newBalance = balance + money; <span class="hljs-keyword"&gt;try { Thread.sleep(<span class="hljs-number"&gt;10); <span class="hljs-comment"&gt;// 模拟此业务需要一段处理时间 } <span class="hljs-keyword"&gt;catch(InterruptedException ex) { ex.printStackTrace(); } balance = newBalance; } <span class="hljs-comment"&gt;/** * 获得账户余额 */ <span class="hljs-function"&gt;<span class="hljs-keyword"&gt;public <span class="hljs-keyword"&gt;double <span class="hljs-title"&gt;getBalance<span class="hljs-params"&gt;() { <span class="hljs-keyword"&gt;return balance; }

}

<span class="cke_reset cke_widget_drag_handler_container"><img class="cke_reset cke_widget_drag_handler" title="点击并拖拽以移动" src="data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==" alt="" width="15" height="15" data-cke-widget-drag-handler="1">

在线程调用存款方法时对银行账户进行同步