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  • Java: If I overwrite the .equals method, can I still test for reference equality with ==?

    - by shots fired
    I have the following situation: I need to sort trees based by height, so I made the Tree's comparable using the height attribute. However, I was also told to overwrite the equals and hashCode methods to avoid unpredictable behaviour. Still, sometimes I may want to compare the references of the roots or something along those lines using ==. Is that still possible or does the == comparison call the equals method?

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  • Favorite C/C++ questions for an interview [closed]

    - by Nullw0rm
    What are your favorite C/C++ interview questions? It may be question or contain question of concepts, some subjects are: Logic, multithreading, algorithms (and performance), STL, templates, inheritence, pointers. This is a useful tool for me, to look at what would be tested on a career-like application.

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  • Fields in CakePHP could not be referred by JQuery

    - by kwokwai
    Hi all, I have got a simple HTMl form with one field as follows: <input type="text" name="data['User']['user_id']" id="data['User']['user_id']" value="1"> $(document).ready(function(){ $("#data['User']['user_id']").mouseover(function(){ alert("hello"); }); }); The code couldn't work, I think it may be the name of the Input text field that caused the problem, but I don't know how to alter it because this is the naming convention in CakePHP.

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  • 500 internal server error while trying to use the registration form

    - by Prachi Mazumdar
    I am using the registration form that is already available in the user manager option in my website. But once I click on the register button I get this message: Server error The website encountered an error while retrieving http://prachi.matrimony4me.in/index.php/sample-sites-2?task=registration.register. It may be down for maintenance or configured incorrectly. Here are some suggestions: Reload this webpage later. HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

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  • progress at work

    - by noopize
    I work in a small department in a very large company. Our department operates largely as a independent unit within the company. Each member of the team has a different role. My role within the team is a operations/admin and no one knew of my skills in programing as I never said anything before about it. I just did my work and in the free time read up on things for my own development Our developer who used to look after our websites has left a few months ago. Now when we require edits to our websites even basic HTML changes we outsource the work. We are getting shafted big time. I could of so said something sooner to highlight my skills in this area but I guess I was just happy to do my own development projects. And one reason was they are using asp.net and I have mainly done things in php. I only hinted before that I have done things but I did not want to reveal them before I had completed anything. I was working on something for myself that the company was also trying to implement something similar(e commerce site). I used open source and they decided to go for a propriety solution. Now I have finished my project and showed it to my boss, their project is still not completed and is quite expensive. He was impressed with what I showed him and suggested I should go for courses to learn asp.net. that I may be able to do the development work for them and there are some big upcoming projects in the future. He said this would be a benefit for me that I should look to be doing a better then role then admin. My employer does have a policy if relevent to the role they may support the costs of courses. Now how do I play this what should I say to my boss. I want to get advise on which MS certified courses would be good for asp.net and how to best approach my boss to see if they will pay all the amount for the course. And how much different will asp.net be from php.

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  • coverting existin flash with cakephp website into mobile version

    - by jpramod4u
    How to convert the existing flash site into mobile version existing site in form of the cakephp frame work. We thought that html ,css,php,javascript may work all mobiles.We dont know exactly. Please tell us how many possible way to develop existing site into mobile version and also need to detect the from which browser the request is coming whether mobile browser or pc browser. The existing site link is :This site convert into mobile version

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  • Is this possible in sql server 2005?

    - by chandru_cp
    This is my queries select ClientName,ClientMobNo from Clients select DriverName,DriverMobNo from Drivers It gives me two result tables... But i want to combine both the result tables into a single table... I tried union and union all it doesn't give me what i want.... Note: There is no relationship between the two tables...... There may be 200 clients and 100 drivers...

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  • Adding characters to string (input field)

    - by Zaps
    Hi, I have a text box where the value the result of a calculation carried out in jQuery. What I would like to do, using jQuery, is to display brackets around the number in the text box if the number is negative. The number may be used again later so I would then have to remove the brackets so further calculations could be carried out. Any ideas as to how I could implement this? Thanks Zaps

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  • Java Multi threading - Avoid duplicate request processing

    - by seawaves
    I have following multi threaded environment scenario - Requests are coming to a method and I want to avoid the duplicate processing of concurrent requests coming. As multiple similar requests might be waiting for being processed in blocked state. I used hashtable to keep track of processed request, but it will create memory leaks, so how should keep track of processed request and avoid the same requests to be processed which may be in blocking state.

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  • regex. How can I match the value between '+' and ':' ?

    - by martin
    I have this string: sometext +[value]:- I would like to match the value(1-3 numerical characters) (with regex, javascript) sometext may contain a +sign if i'm unlucky so I don't wanna end up with matching some +text +value:- I sat up last night banging my head against this, so I would be really glad if someone could help me.

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  • if `int != 1` or `int == 0`?

    - by Emil
    Hey. I was coding here the other day, writing a couple of if statements with ints that are always either zero or one (~bools), and I asked myself: Should I use if (int == 1) or if (int != 0) ? Is there any difference at all? Please, don't answer with stuff regarding the int may being more/less than 1/0, that's not what I want to know.

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  • What is the different between C# and .Net?

    - by Bopha
    Hello, May I know what is the different between C# and .Net? because when I think of C#, right away I would say is a .Net, but when I seearch for job, posts sometimes say require candidate to have C# and .Net experience. Can someone give me little of explaination? thanks..

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  • sqlite insert into: do the column names have to match?

    - by P a u l
    (This question is specific to SQLite3, but it may be common to all SQL I don't know.) This doesn't seem to work. Is it because the column names don't match? (If they match, it works.) If this is true, how can I select from a different field in the source table? INSERT INTO [ImagePoint] (ImageID, PointID, X, Y) SELECT Image2ID, PointID, X, Y FROM Point

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  • How to remove MySQL database?

    - by Masi
    You may notice from my last question that a problem caused some more problems here. My database is now unusable partly due to my interest to break things and my inability to look at error messages. I know that I should not reuse primary keys, but I would like to use them again after the removal of the database that I deteriorated. So How can you correctly remove MySQL database?

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  • Starting a seperate process

    - by jacquesb
    I want a script to start a new process, such that the new process continues running after the initial script exits. I expected that I could use multiprocessing.Process to start a new process, and set daemon=True so that the main script may exit while the created process continues running. But it seems that the second process is silently terminated when the main script exits. Is this expected behavior, or am I doing something wrong?

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  • Reading from socket

    - by user363638
    I have data from socket, which is header and message. Header if of 5 bytes, 3rd and 4th is message length. I am reading from socket, can someone suggest me good function, it will return me msg. assuming that i am reading 1024 bytes and it may happen that i have recived only partial data.

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