Java Consultant
Job Title: Java Consultant- Staff Software Engineering
Location: Shanghai
Company: HP China (www.hp.com)
This is a position reporting to Product Development Manager. The Staff Software Engineering will be responsible for leading development of robust high-volume kernel framework. The successful candidate will be a top performer and versatile professional leading the design, development and implementation of system infrastructure at eBay. This position will be based in Shanghai.
Responsibilities:
ž Define, design, implement, unit test and debug complex, multi-tier distributed software applications on eBay platform.
ž Work with other engineers, product management, QA and Operation team to design and implement application features
ž Estimate engineering effort, plan implementation, and rollout system changes.
ž Develop industry and product technical expertise.
ž Work closely with the other Product Development teams in US or India.
Requirements:
ž BS, MS, or PhD in Computer Science or related technical discipline (or equivalent).
ž A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design.
ž Extensive programming experience in Java and J2EE (strong OO skills preferred).
ž At least 3~5 years of large systems software design and development experience. Good knowledge about performance and scalability
ž Mature Debugging & troubleshooting skills in Large-scale software product.
ž Fluent communication skills in Oral English communication and email writing.
ž Working Experience in Multi-national Company is a plus.
ž Coding skills in JavaScript/AJAX, database design and SQL, and/or knowledge of XML and SOA/Webser
相关文档：
/**
* @(#)MyTray.java
*
*
* @author Xie Xiaojin
* @version 1.00 2009/11/9
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MyTray implements ActionListener {
private MenuItem item1;
private MenuItem item2;
private MenuItem item3;
private ......
JDK1.4中
Map map = new HashMap();
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Object key = entry.getKey();
Object value = entry.getValue();
}
JDK1.5中,应用新特性For-Each循环
Map m = new HashMap();
......
RMI（Remote Method Invocation）
RMI是分布式对象软件包，它简化了在多台计算机上的JAVA应用之间的通信。
必须在jdk1.1以上
RMI用到的类
java.rmi.Remote 所有可以被远程调用的对象都必须实现该接口
java.rmi.server.UnicastRemoteObject 所有可以被远程调用的对象都必须扩展该类
什么是RMI
远程方法调用是 ......
2009-11-09 15:33:36
文件属性配置类
package cn.sist.file;
public class FileProperty {
private int sysProperty = 0;
private int hiddenProperty = 0;
private int readProperty = 0;
private int arriveProperty = 0;
private boolean changeAll = false;
public FileProperty setC ......
原因有很多种，比如：
1.数据量过于庞大；死循环
；静态变量和静态方法过多；递归；无法确定是否被引用的对象；
2.虚拟机不回收内存（内存泄漏）；
说白了就是程序运行要用到的内存大于虚拟机能提供的最大内存就发生内存溢出了。
内存溢出的问题要看业务和系统大小而定，对于某些系统� ......
