How can I add business days to the current date in Java?
How can I add business days to the current date in Java? public Calendar addBusinessDate(Calendar cal, int days) { // // code goes over here // } Note: It should consider weekends too. ...
java
How to make JLabels start on the next line
JPanel pMeasure = new JPanel(); .... JLabel economy = new JLabel("Economy"); JLabel regularity = new JLabel("Regularity"); pMeasure.add(economy); pMeasure.add(regularity); ... When I run the code above I get this output: Economy Regularity How can I get this output, where each JLabel starts on a new line? Thanks Economy Regular...
NoClassDefFoundError on org.jruby.Main
I'm trying to install the hpricot gem on my Windows machine using JRuby 1.4.0RC1. I'm trying to follow the advice to the related question (see -> http://stackoverflow.com/questions/726412/installing-hpricot-for-jruby/1323619#1323619). Per the answer's advice I pulled the git head of hpricot and from it's dir ran: jruby -S rake package...
Can java/scala/etc code tell when it is being run by tomcat?
I have the data for my webapp in a database that is accessed differently from different places. There is no generic code that can just do it for both. So I want to know at run time which env I am in. In fact, the code to run really depends on whether it is run within or without tomcat, so I would like to detect this at runtime. How d...
Java to c# convertor
looking for a java to c# converter. the project is about 100 classes. what is the best program for this? ...
Console output changing in java
I am writing a console app in java. Is there a way to change certain lines in the console to new values so it looks a bit dynamic or even clear the whole screen? The console I am using is the one in jcreator. ...
How can I use a switch() statement to convert from a numeric to a letter grade?
This IS NOT homework, but it is a practice that the teacher gave us to help study for a test. But i will not be turning this in to the teacher. (i'm hoping that is allowed) He wants a user to input a grade and have it assigned a letter grade. It would be easy with if statements, but i can't use ANY! I have to use the switch method. Her...
Place button side by side
Hi, how can I make a button place side by side. I used a gridBagLayout to design the layout.The problem is that the button place too far from each other. I have tried to choose the CENTER as anchor but this makes the button overlapping. If I used WEST and EAST, the button placed too far from each other. e.g. SAVE ---------- NEW PATTERN ...
can someone help me to figure this out ? about unicode.
hibyte lobyte makeunicode 250 65 57345 I got this table, and the hibyte and lobyte are some chinese character which may use big5 or GBK encoding, hibyte is hight byte, and lobyte is low byte. And I think the unicode might be some encoding in unicode that corresponding to the big5/GBK character with the hibyte and lobyte....
Java: What data structure to use to imitate PHP's associative arrays?
I want a data structure that allows me to map keys to values, like PHP's associative arrays. Each key can only exist once, but a value can be mapped to any number of keys. What am I looking for? Something in the Google Commons Collections? ...
getting Object properties for an object loaded in a canvas
I have loaded an object from an object file into the scene. I peform some transformation,mapulation on it. How am I able to retrive the new information of the object? Eg:all vertices new location after a rotation operation. Thanks in advance. ...
KeyboardFocusManager.setCurrentKeyboardFocusManager() breaks focus
I overrode DefaultKeyboardFocusManager to provide some special behavior for the Alt key. However, after setting this, I notice that hitting Tab on some of my text fields does not work. I also experimented with even calling the following on the AWT, but this still exhibited the broken Tab behavior: KeyboardFocusManager.setCurrentKey...
Sanitizing KML Stream to change xml namespace
There is some strange behaviour in parsing KML produced by Google Earth using a compliant parser, JAK. The expected namespace by the parser is not written as the correct one by the GE Kml production system and when reading this KML back into another Java application validation fails. We are fiddling the stream as it is read and replacin...
What's the biggest website served by JBoss?
My "normal" development is based on java (1.6), a database (db2, oracle, mysql) and an application server (JBoss). I wonder if there is a limit of concurrent users that I can handle with this configuration. I think running a site like google.com would'nt be possible this way. But where is the limit? If things get bigger, do I have to...
What is the use of TAG Libraries in JSP and why we are using it?
I am new to JSP and i've come accross Tag libraries, Please give me some detail explaination of tag libraries, where and what type of application we should use that? Thanks in advancve ...
JMS Topic message size
Our application uses a topic to push message to a small set of subscribers. what sort of things should i look for when modeling a jms message with respect to the size of the actual message to be pushed. Are there any known limits or is application server specific? Any best practices or suggestions on this topic (pun unintended)? ...
Using uncaughtExceptionHandler effectively.
I got to know about this Java 1.5 capability recently and I developed a sample code to use this. My objective is to restart the thread when it gets dead due to an uncaught exception. public class ThreadManager { public static void main(String[] args) throws InterruptedException { startThread(); } public static void st...
Optimizing if-else /switch-case with string options
What modification would bring to this piece of code? In the last lines, should I use more if-else structures, instead of "if-if-if" if (action.equals("opt1")) { //something } else { if (action.equals("opt2")) { //something } else { if ((action.equals("opt3")) || (action.equals("opt4"))) { ...
how to convert byte array to string and vice versa
I have to convert a byte array to string in Android, but my byte array contains negative values. If I convert that string again to byte array, values I am getting are different from original byte array values. What can I do to get proper conversion? Code I am using to do the conversion is as follows: // Code to convert byte arr to str...
What is the difference between synchronized and static synchronized?
For a travel booking web application, where there are 100 concurrent users logged in, should ticket booking and generating an "E-Ticket Number" be implemented by a "synchronized" or a "static synchronized" method? ...