h********i
发帖数: 32 | 1 个人觉得data structure,operating system在dba中没用
主要学sql, unix, shell scripting就能搞好dba了
在美国的职场混，关键是能用英语和大家打成一片，埋头写程序都没有出头之日；少一点geeky,多一些street smart |
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sa
发帖数: 1384 | 2 data structure在software development游泳，DBA的确用处不大。你说的很有道理，
受教了。 scripting 对于sql管用，对oracle有用吗？我是新手 |
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x**********0
发帖数: 163 | 3 mssql 新人请教，怎么样create 很多table ，一样的variables， structure， 不一
样的table name， 谢谢啦 |
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x**********0
发帖数: 163 | 4 beijing回的真是快啊，
要是不只１０个呢，５０个呢，copy paste不是办法
有没有办法一下子就建５０个table，然后都是一样的structure，不一样的名字呢？ |
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m*****e
发帖数: 126 | 6 I have already found an implementation. Sorry for my earlier posts.
I should do some research first before I ask. (In a hurry this time,
LP's homework is due. :)))
For your information, visit http://www.theparticle.com/javadata2.html
There is a free document (like a book) talking about Java
implemented Data Structures. |
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l********r
发帖数: 140 | 7 In C/C++, I like to use structure a lot to define my own (complex) data type.
However, in java, it seems the only way is to use class.
I hear class is quite slow if used as a basic complex data type (when we need
to "New" or use it a lot of times).
Any comments or ideas of this?
Thanks. |
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c**g
发帖数: 274 | 8 According to C++, structure is class, period. |
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s******M
发帖数: 3435 | 9 slow? what kind of operations are you using? in C++, structure is class by
definition, with default visibility public.
type.
need |
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st
发帖数: 1685 | 10 summerMM used to claim that, said it used gcc and java vesion is faster
some time, blah blah... //sniff
"obvious thing can be wrong" is quite obvious to you, right?
wait, found it:
发信人: summerMM (艳阳天~~), 信区: Java
标 题: Re: structure in Java??
发信站: Unknown Space - 未名空间 (Wed May 5 09:19:10 2004) WWW-POST
just did a few simple performance test using j2sdk1.4.2_04 to compare with the
gcc compiler and MS compiler under linux and windowsXP respectively, and the
result showed the performance is almost |
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I*******e
发帖数: 1879 | 11 ☆─────────────────────────────────────☆
happycanary (windflower) 于 (Sat May 18 14:48:16 2002) 提到:
the add() method of Vector can append an element to the end of the vecotr, is
there a kind of data structure whose method can add an element as the first
element of the list?(not using index) Thx.
☆─────────────────────────────────────☆
xt (拷贝猫) 于 (Sat May 18 19:10:09 2002) 提到:
I am confused. Why don't you use the Vector by accessing
from end to head?
☆──────────────────────────────────── |
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c******e
发帖数: 139 | 12 请推荐学习JAVA DATA STRUCTURE 和 ALGORITHMS 的书,面试时总是有这些问题， 不知
道如何回
答。谢谢！ |
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e********3
发帖数: 18578 | 13 Bruce Eckel: Thinking in Java for Java data structures problems.
算法书能看得很多，不过没有个1，2年根本不可能精通，如果为了现在找工作，恐怕时
间上来不及，多看看careercup,或者jobhunting版看看面经，如果要临时抱佛脚的话。 |
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l*********s
发帖数: 5409 | 14 what to read after "Thinking in Java?" Just finished data structure and
algorithm, very enlightening; but what is the next step before Java EE?
Threading? GUI? More design paradigm stuffs? |
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a***n
发帖数: 584 | 15 我比较喜欢 Schaum's Outline of Data Structures with Java |
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d**s
发帖数: 920 | 16 Hi, Thanks,
Yes,members has its own access function.
Is there a simple way to convert such structure to a list ? (Or in C/C++
term, casting to a list ? )
Thanks, |
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q**j
发帖数: 10612 | 17 我总是把数据从.csv或者SQL里面读入，成为list。但是现在要把他们变成容易操作的
形式。用了Numpy以后，array(whatever）把所有的东西都变成了一种形式。很不方便
。请问用没有办法直接把数据从list形式转化成structured array？多谢指教。 |
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S****t
发帖数: 1186 | 18 thanks a lot! this makes sense. i have a further question.
since the file i am reading has a fixed header length of 100.
can i still use
fread(&shapeFileHeader, sizeof(shapeFileHeader), 1, fpShapeFile)
to read the header into the header structure or I need to read the fields (
like
Shape, Xmin, etc) one by one to address the disparity? Thanks again! |
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S*****H
发帖数: 90 | 19 Is a structure just a class without any member functions?
Thanks a lot, |
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G*****m
发帖数: 5395 | 20 default permission, public vs private
Is a structure just a class without any member functions?
Thanks a lot, |
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B********s
发帖数: 3610 | 21 I have a socket connection between a client and a server. Now I want to send
a structure containning a pointer pointed to an int array(which indeed is
what i want to send).How am I supposed to do this? Thanks. |
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B********s
发帖数: 3610 | 22 Yes, that is the problem. In other words, how can I send the structure
including the int array it point to? |
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s****i
发帖数: 150 | 23 如果是C++的empty structure,应该是default constructor吧 |
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e*****r
发帖数: 379 | 24 跪求书：ADTs, Data Structures, and Problem Solving with C++
多谢！ |
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xt
发帖数: 17532 | 25 Data Structure and Algorithm for Dummies. :D |
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a*w
发帖数: 4495 | 26 楼主要短的，可以用 Aho 的 Data Structure and Algorithms, 才400页。 |
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xt
发帖数: 17532 | 27 Data Structure and Algorithm for Dummies. :D |
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a*w
发帖数: 4495 | 28 楼主要短的，可以用 Aho 的 Data Structure and Algorithms, 才400页。 |
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c*********e
发帖数: 16335 | 30 data structure都差不多。建议买本中文教材，学起来容易理解，无非就是些stack,
queue,linked list,hash table,binary tree，big o notation,各种排序，各种查找
啊什么的。建议用java版本的，现在java统治了it行业。 |
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t****t
发帖数: 6806 | 32 1. usually lock-free structures use atomic operations and (possibly) retry t
o guarantee race-free conditions without lock. how? read the article. are yo
u waiting others to spoon feed you...?
2. there is no lock so there is no notification. while one thread gain acces
s, the others just keep retrying.
3. since it's the last process, usually the other process already move on. i
guess you are thinking about barrier...
按
to |
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s****y
发帖数: 503 | 33 这两天有个Java的面试，job description里有句Understanding of different OS
Memory management strategies and heap structure，只是什么意思？我应该看些什
么做准备呢？ |
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s********k
发帖数: 6180 | 34 Java需要知道这么底层的吗？heap structure看OS的教科书，或者简单点，能把malloc
搞清楚底层是怎么分配memory的基本差不多了，不过这是C的范围了 |
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S*A
发帖数: 7142 | 35 1-5 我不用他说都很明白。
6 是说 inlined code size blow out code cache 吧，还有
其他的吗？
7 需要解释一下 PGO 和 WPO 是什么东西。
8 就是assume worse case always cache missing 吧。
如何设计 data structure 分布在尽量少的 cache line 里面。
9 这些user space编程几乎不太可能考虑这个方面的东西。
例如 memory bank 根本管不着。 |
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T*o
发帖数: 363 | 36 怎么将\structure{text} 里的字体改小一点？
谢谢 |
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s****o
发帖数: 18 | 37 I'm a beginner to work with JAXP. Now I need to parse the
DTD
part in a XML file and get its structure, i.e. I want to
know every element's name and type but I don't care its
value. What package and class I can use to do that? Is it
possible to do it with DOM parser?
Thanks a lot for your help! |
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s****o
发帖数: 18 | 38 I'm a beginner to work with JAXP. Now I need to parse the
DTD
part in a XML file and get its structure, i.e. I want to
know every element's name and type but I don't care its
value. What package and class I can use to do that? Is it
possible to do it with DOM parser?
Thanks a lot for your help! |
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g*****t
发帖数: 53 | 39 Hi,
I'll have an interview for a Blue Cross Blue Shield company. The position
will be responsible for "monthly creation of data that is used for
establishing reserves, trends and pricing".
So I'm wondering what the typical structure of that kind of data looks like.
Say, what common variables does it typically have? Is it one record per
claim, or one record per policy holder?
Any input is much appreciated. |
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f*******d
发帖数: 339 | 40 An astrophysical explaination of the periodicity of ice age is offered today:
astro-ph/0209252
Title: The Spiral Structure of the Milky Way, Cosmic Rays, and Ice Age
Epochs on Earth
Authors: Nir J. Shaviv
Comments: 33 pages, 11 figures. To Appear in New Astronomy
The short term variability of the Galactic cosmic ray flux (CRF) reaching
Earth has been previously
associated with variations in the global low altitude cloud cover.
This CRF variability arises from changes in the solar |
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m*******e
发帖数: 1280 | 41 check this, the best site IMHO.
www.expasy.ch/tools
for domain structure analysis, the best might be Pfam in Wash U and SMART.
GOod luck. |
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r*****d
发帖数: 54 | 42 你可以用Vienna Package
计算secondary structure的
partition function,这样就可疑
得到这个结构在所有可能构象中
所占的比利.Vienna Package is free online!
另外,mfold server也可以给出
次忧的结构,我个人认为次忧的结构
也可以看出最忧结构是否稳定. |
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m******m
发帖数: 13 | 43 A postdoctoral research position funded by a four-year NIH grant is
immediately available in Dr. Jianlin Cheng's group in the Department of
Computer Science and Informatics Institute at the University of Missouri,
Columbia. The scientist at this position will work on a project to design,
develop, and benchmark cutting-edge computational methods and tools to
predict protein structures from protein sequences. The methods and tools
will be tested in the biannual world wide Critical Assessment of Te |
|
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t******r
发帖数: 476 | 45 anyone know a software can predict mRNA structure up to 2000 bases? thanks. |
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h**********r
发帖数: 671 | 46 Title:
The bacterial porin superfamily: sequence alignment and structure prediction
Molecular Microbiology
Volume 5, Issue 9, pages 2153–2164, September 1991
E-mail: m******[email protected]
非常感谢！新年快乐！！ |
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c****w
发帖数: 570 | 47 I am a graduate student in a middle level college.
I will graduate in the coming summer and I had one JBC paper about crystal
structure.
My question is with this JBC paper, is it possible that I can find a postdoc
position in a high standing lab?
Any comment will be appreciated, thanks. |
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x*******i
发帖数: 32 | 48 Hello there:
Trytophan fluorescence spectroscopy could be used to analyze whether protein
is compact or open. Ex at 288 nm and em around 320 nm suggests that protein
is compact (trytophan in hydrophobic environment). Em at longer wavelength
suggests an open structure. Also relative fluorescence intensity could tell
something? Anybody know why?
Thanks |
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w***e
发帖数: 269 | 49 It is because the emission wavelength of a fluorophore is very much
influenced by the polarity of the micro-environment. A polar medium makes
the emission "red-shifted", meaning longer wavelength, whereas a non-polar
medium makes the emission blue shifted. Tryptophan is a hydrophobic amino
acid. In a folded protein, it is usually buried within the interior of the
protein (hydrophobic core) so that it is in a relatively non-polar
environment. In a completely unfolded protein, Tryptophan is expos... 阅读全帖 |
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