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  • Cross field validation with Hibernate Validator (3.1.0.GA)

    - by Joshua
    How do we enforce cross field validation with hibernate validator 3.1.0.GA create table user (id, start_date, end_date, ...) e.g. college graduation finishing date for a student should be greater than the graduation start date How do we enforce this, so that the validation messages can be shown in the UI on save / update operations. The UI is built using JSF, Richfaces

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  • Is there a Markdown editor for Dojo

    - by Emilien
    Is there a good Markdown editor for Dojo? I have seen Control.TextArea (based on Prototype) and Stack Overflow's reverse-engineered version of WMD (seems to rely on jQuery) but I'd rather use a Dojo-based tool, as my site already uses this framework. Does such a tool exist? Googling for dojo markdown editor doesn't seem to return any useful results, apart from a Google Summer of Code 2008 student blogging that he's working on it...

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  • Master thesis in software engineering

    - by maya
    Hi everyone, I will be Master student and I look for a topic in software engineering for my thesis , I want a topic which is less programming and more analysis. I mean a topic without programming because I'm not professional in programming. I'm thinking in UML tools but I really don't have specific topic. any suggestion please any one help me thanks in advance

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  • Processor architecture

    - by asj
    While HDDs evolve and offer more and more space on less room, why are we "sticking with" 32-bit or 64-bit? Why can't there be a e.g.: 128-bit processor? (This is not my homework; I'm just a student interested beyond the things they teach us in informatics)

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  • How do "professionals" make a GUI in java ?

    - by Jules Olléon
    Thanks for your answers to my previous question about GUI in java. I now wonder what are the solutions chosen by professionals to get a nice GUI, for "real" applications. Do you use swing and JComponents and just change the "look and feel" ? Do you prefer awt or another library ? Sorry if that question sounds weird, I'm a student and I don't really know how java is used in the real world...

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  • How to make this sub-sub-query work?

    - by Josh Weissbock
    I am trying to do this in one query. I asked a similar question a few days ago but my personal requirements have changed. I have a game type website where users can attend "classes". There are three tables in my DB. I am using MySQL. I have four tables: hl_classes (int id, int professor, varchar class, text description) hl_classes_lessons (int id, int class_id, varchar lessonTitle, varchar lexiconLink, text lessonData) hl_classes_answers (int id, int lesson_id, int student, text submit_answer, int percent) hl_classes stores all of the classes on the website. The lessons are the individual lessons for each class. A class can have infinite lessons. Each lesson is available in a specific term. hl_classes_terms stores a list of all the terms and the current term has the field active = '1'. When a user submits their answers to a lesson it is stored in hl_classes_answers. A user can only answer each lesson once. Lessons have to be answered sequentially. All users attend all "classes". What I am trying to do is grab the next lesson for each user to do in each class. When the users start they are in term 1. When they complete all 10 lessons in each class they move on to term 2. When they finish lesson 20 for each class they move on to term 3. Let's say we know the term the user is in by the PHP variable $term. So this is my query I am currently trying to massage out but it doesn't work. Specifically because of the hC.id is unknown in the WHERE clause SELECT hC.id, hC.class, (SELECT MIN(output.id) as nextLessonID FROM ( SELECT id, class_id FROM hl_classes_lessons hL WHERE hL.class_id = hC.id ORDER BY hL.id LIMIT $term,10 ) as output WHERE output.id NOT IN (SELECT lesson_id FROM hl_classes_answers WHERE student = $USER_ID)) as nextLessonID FROM hl_classes hC My logic behind this query is first to For each class; select all of the lessons in the term the current user is in. From this sort out the lessons the user has already done and grab the MINIMUM id of the lessons yet to be done. This will be the lesson the user has to do. I hope I have made my question clear enough.

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  • learn ubuntu book

    - by dole doug
    Hi there I'm cs student and we did some unix programming at school, but most of use are using windows os. I have decided to go on ubuntu. Besides installing ubuntu and using it, what book will teach me the "must" things to know about *nix OS?

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  • Learning to write organized and modular programs

    - by Peter
    I'm a computer science student, and I'm just starting to write relatively larger programs for my coursework (between 750 - 1500 lines). Up until now, it's been possible to get by with any reasonable level of modularization and object oriented design. However, now that I'm writing more complex code for my assignments I'd like to learn to write better code. Can anyone point me in the direction of some resources for learning about what sort of things to look for when designing your program's architecture so that you can make it as modularized as possible?

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  • Sencha Tocuh XML Reader Problem

    - by Ploetzeneder
    Hi, i am student and cannot afford the premium support, so my question here: I have quite a simple XML and it gives me the following Error: http://img33.imageshack.us/i/screenprn.png/ Ext.regModel('User', { fields: ['id', 'name', 'email'] }); var store = new Ext.data.Store({ model: 'User', autoLoad:true, proxy: { type: 'ajax', url : 'ajax/user.xml', reader: { type : 'xml', model: 'User', record: 'user' } } });

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  • Django ForeignKey created empty?

    - by Scott Willman
    This seems very basic and I must be missing something, but here goes anyways... With two models like so: class School(models.Model): name = models.CharField("Official School Name", max_length=128) address = models.TextField("Address of the School", max_length=256) mascot = models.CharField("Name of the School Mascot", max_length=128) class StudentProfile(models.Model): name = models.CharField(max_length=128) school = models.ForeignKey(School) If the student gets created before the school, how do I give 'school' a default empty value? Is it blank or null or what? Thanks!

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  • software engineer self improvment [closed]

    - by radi
    hi all , i am a 4th year student at software engineering department , at my faculty we study software engineering basics (unified process , uml , design patterns ) , so : what about these technics ? do i need to learn another (or new such as agile) ? what about programming languages (frameworks) ? what i need to learn ? why ? thanks

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  • Request is not generated fro m jsp page

    - by Hitesh Solanki
    Hiii.... I am developing small spring application. I have to store the details of the student information in the database. I have develop one simpleformcontroller. I have used netbeans + hibernate mapping + spring. when I submit the form, jsp page is redirect on the same page and control does not go to Formcontroller..

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  • practicing c programming

    - by hopefulLLl
    greetins everyone!! i'm a student learning c language and i need to test my c skills.. so can anyone suggest me any way that where can i find questions related to c programmes..i.e. writing c programmes!! from simple to complex(topic wise)..with solutions! thanx

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  • How to load the rest of the data in mysql in php

    - by user225269
    I have trouble figuring out how do I load the rest of the data in html. Here is my code: <?php $con = mysql_connect("localhost","root","nitoryolai123$%^"); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("school", $con); $result = mysql_query("SELECT * FROM student WHERE IDNO='$_GET['id']'"); ?> <?php while ( $row = mysql_fetch_array($result) ) { ?> <table class="a" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#D3D3D3"> <tr> <form name="formcheck" method="post" action="updateact.php" onsubmit="return formCheck(this);"> <td> <table border="0" cellpadding="3" cellspacing="1" bgcolor=""> <tr> <td colspan="16" height="25" style="background:#5C915C; color:white; border:white 1px solid; text-align: left"><strong><font size="2">Update Students</td> <tr> <td width="30" height="35"><font size="2">*I D Number:</td> <td width="30"><input name="idnum" onkeypress="return isNumberKey(event)" type="text" maxlength="5" id='numbers'/ value="<?php echo $_GET['id']; ?>"></td> </tr> <tr> <td width="30" height="35"><font size="2">*Year:</td> <td width="30"><input name="yr" onkeypress="return isNumberKey(event)" type="text" maxlength="5" id='numbers'/ value="<?php echo $row["YEAR"]; ?>"></td> this is the part where I am getting the error: mysql_select_db("school", $con); $result = mysql_query("SELECT * FROM student WHERE IDNO='$_GET['id']'"); ? What do you recommend that I could do so that I can also load the ID Numbers corresponding data into the other forms?

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  • some pointer to understanding GCC source code

    - by user299570
    hi, I'm student working on optimizing GCC for multi-core processor. I tried going through the source code, it is difficult to follow through it since I need to add some code to the back end. Can anyone suggest some good resource which explains the code flow through the different phases. Also suggest some development environment for debugging GCC mainly to step through the code. Is it possible on windows?

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  • how to generate a random String? in java

    - by chandra wibowo
    hi everyone, i have an object called Student, and it has studentName, studentId, studentAddress, etc. for the studentId, i have to generate random string consist of seven numeric charaters, eg. studentId = getRandomId(); studentId = "1234567" <-- from the random generator. and i have to make sure that there is no duplicate id. thanks in advance

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  • What is a stack overflow?

    - by Donna
    I am getting messages showing stack overflow on line 26 and 27. What is this and how can I resolve the issue? I am an online student and this is really messing me up with my classes.

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