Linux

118、LINUX下线程，GDI类的解释。

LINUX实现的就是基于核心轻量级进程的"一对一"线程模型，一个线程实体对应一个核心轻量级进程，而线程之间的管理在核外函数库中实现。

GDI类为图像设备编程接口类库。

 

10. 问得稀里糊涂的题

65、四种会话跟踪技术

会话作用域ServletsJSP
页面描述

page否是代表与一个页面相关的对象和属性。一个页面由一个编译好的 Java servlet
类（可以带有任何的 include
指令，但是没有include 动作）表示。这既包括 servlet
又包括被编译成 servlet
的 JSP 页面

request是是代表与Web
客户机发出的一个请求相关的对象和属性。一个请求可能跨越多个页面，涉及多个 Web
组件（由于 forward
指令和include 动作的关系）

session是是代表与用于某个 Web
客户机的一个用户体验相关的对象和属性。一个 Web
会话可以也经常会跨越多个客户机请求

application是是代表与整个Web
应用程序相关的对象和属性。这实质上是跨越整个 Web
应用程序，包括多个页面、请求和会话的一个全局作用域

69、简述逻辑操作(&,|,^)与条件操作(&&,||)的区别。

区别主要答两点：a.条件操作只能操作布尔型的,而逻辑操作不仅可以操作布尔型,而且可以操作数值型

b.逻辑操作不会产生短路

 

10. 其他

1、请用英文简单介绍一下自己.

4、WEB SERVICE名词解释。JSWDL开发包的介绍。JAXP、JAXM的解释。SOAP、UDDI,WSDL解释。

2、请把 http://tomcat.apache.org/ 首页的这一段话用中文翻译一下?

Apache Tomcat is the servlet container that is used in the officialReference Implementation for the
Java Servlet and
JavaServerPages technologies. The Java Servlet and JavaServer Pagesspecifications are developed by Sun under the
JavaCommunity Process.

Apache Tomcat is developed in an open and participatory environment andreleased under the
Apache Software License. Apache Tomcat isintended to be a collaboration of the best-of-breed developers from around theworld. We invite you to participate in this open
development project. To learnmore about getting involved,
click here.
Apache Tomcat powers numerous large-scale, mission-critical webapplications across a diverse range of industries and organizations. Some ofthese users and their stories are listed on the
PoweredBywiki page.

3、美资软件公司JAVA工程师电话面试题目

1. Talk about overriding, overloading.

2. Talk about JAVA design patterns you known.

3. Talk about the difference between LinkList, ArrayList and Victor.

4. Talk about the difference between an Abstract class and an Interface.

5. Class a = new Class(); Class b = new Class();

 if(a == b) returns true or false, why?

6. Why we use StringBuffer when concatenating strings?

7. Try to explain Singleton to us? Is it thread safe? If no, how to make itthread safe?

8. Try to explain Ioc?

9. How to set many-to-many relationship in Hibernate?

10. Talk about the difference between INNER JOIN and LFET JOIN.

11. Why we use index in database? How many indexes is the maximum in one tableas your suggestion?

12. When ‘Final’ is used in class, method and property, what dose it mean?

13. Do you have any experience on XML? Talk about any XML tool youused ,e.g. JAXB, JAXG.

14. Do you have any experience on Linux?

15. In OOD what is the reason when you create a Sequence diagram?
Administrator 10:34:20
  1，堆和栈的区别，有一个64k的字符串，是放到堆上，还是放到栈上，为什么？
2，什么时候用到接口，什么时候用到抽象类，二者区别
3，有一个100万的数组，里边有两个市重复的，如何设计算法找到。
4，设计数据库时，n维，如何设计。
例如[省份][城市][网吧]，这是三维关系，它的表也应该有三个，网吧有外键引用城市，城市有外键应用省份，这个规律就是下层的要有一外键去引用上层。