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Adharmonics Quantitative software engineer

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sumingche 发表于 2014-3-24 04:06:57 | 显示全部楼层 |阅读模式

2014(1-3月) 码农类 硕士 全职@Adharmonics - 网上海投 - 技术电面 |Other

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Adharmonics 的Quantitative software engineer(java),大概流程是先一轮电面,再一轮online test,之后就是onsite,估计每个人题目都是一样的。

. from: 1point3acres.com/bbs
第一轮电话面试
java 什么时候是pass by value/ by reference map有几种,什么时候怎么用
如何获得hashcode, hashcode如何重写,. 鐗涗汉浜戦泦,涓浜╀笁鍒嗗湴
object class有哪些方法 equals, tostring()
List有几种,什么时候怎么用. visit 1point3acres.com for more.
multithread programming,  sychronized
read/write lock的区别
有个村子,有个政策,就是生女孩就可以继续生,直到生出男孩,生出男孩就不生,问最后的男vs女的比例。
如何改变最后的概率? 使用药物改变x,y染色体。
鏉ユ簮涓浜.涓夊垎鍦拌鍧.
.鏈枃鍘熷垱鑷1point3acres璁哄潧
Online test

A. If you were asked to review some source code and came across the following functions, what would your comments be? A sentence or two for each is sufficient.

unsigned long factorial(unsigned long n)
{
   return (n == 0) ? 1 : n * factorial(n - 1);
}

unsigned long combinatorial(unsigned long n, unsigned long k)
{
   return factorial(n) / ( factorial(k) * factorial(n-k) );. 鐗涗汉浜戦泦,涓浜╀笁鍒嗗湴
}. visit 1point3acres.com for more.

-google 1point3acres
B. If you could, I'd like to ask you to write a JAVA program to do the following:

1. Read an excel file (such as the attached file:  example.xls) , and put the data into a table in MySQL database.   Please design the database table first.

2. Write a simple GUI in Swing, so a user could just enter the path to the excel file, and do the things outlined in item 1 above. Note that the look and feel of the GUI is not important (as long as the functionality is there).. from: 1point3acres.com/bbs
. more info on 1point3acres.com
3. Now, change the Swing application a little bit so the user could enter the path to a folder, and the application should process all excel files (i.e. file name ends with .xls) in that folder.    Please note, the folder could contain a large number of excel files with large number of rows, so you need to find a way to improve the performance of the application and GUI. - hint: multithreading

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