General approach to the implementation of several dictionaries of color name?
My interactive color wheel applet [url http://r0k.us/graphics/SIHwheel.html] currently has a single class providing for more than 1500 color names and hexadecimal values. I am considering multiple supply of these "dictionaries names of colors" (CNDs) - the current set, Munsell colors Sherwin Williams colors, etc... Each item in the Dictionary consists of a hexadecimal string of the value of the color and a name string. There are at least 3 approaches that might be possible:(1) store each NDT in its own file of plain text with names ending in common extension, for example ".PSF". At runtime, hunt for .PSF files in the current directory and build a GUI selection list dynamically. This would probably be my approach in other languages and would save space in the jar file. (One byte per character instead of two). But I don't even know if a cmdlet can read files in its own .jar file. If it is possible, they would be in the current directory, right?
(2) store each NDT in its own class. Is there a way to simply drag the classes in a project and the parent java automatically recognize what NDT classes it there and adjust the graphical user interface to support / them?
(3) store NSDC all in one class, as 2D arrays separated. It could end up as a huge (class in progress, with just a dictionary, is 78 k in size), but could be the simplest to implement.
Which path would you take? Is there a better way that I didn't think?
If you already use getResource() and you do not place random CND files around the file system, there is no reason to mix FileInputStreams it.
Class.getResourceAsStream () is the way to support different types of loads. It supports even seen your program a jar file or a jar unpacked file. You leave there useless catch block you need to remove.
Tags: Java
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In addition, your list is never initialized. The Get accessor of that we called several times during the rendering of the user interface, the set accessor is not called.
You need to implement some sort of initialization (for example, https://tompeez.wordpress.com/2014/10/18/lazy-initalizing-beans/) of
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Employee: A person working for the company whose information is in the database.
The problem: my client wants the data divided into several subcategories, so, for example, it would be like sales, managers, etc., using the human resources database. The main page of this project contains a table that lists all the company employees, low to high. There is a column of navigation with several links to predefined reports filter that filters data on the question whether the employee in the database is a seller, Manager, etc.. If the user clicks on the link change, it will take them to a page master detail where the upper part is general information and background tasks of the employee. The problem is that, according to his level, there may be additional details that the user will want to change, such as if the employee is responsible for, the user will also want to see another table a list of employees by the Manager. There is also a second level of managers who will have a table of managers of this person manages. The dream is that there is a list of links above the tabular presentation, which will allow the user to choose what table they want to see. I thought about the following:
1. create several copies of the home page, one for each subcategory, so that she will be the link change correct.
Positives - Simple, easy, I know how to.
Negative - would like it to appear on the same page, such that if the user deletes / adds a column in a single page, this change would occur on all other pages. I also have to make the same changes on several pages, one is required.
2. create a text field hidden on the page that records the last link, what they clicked. When the user clicks on the link change, some kind of javascript selects the right page to go to in view of what is in the box.
Positives - seems simple enough, but I have not tapped into javascript a lot
Negative - not for sure if it is even feasible, would need help
3. create a subpage of master-detail, that holds all the necessary tables and hide those that are not. When the user clicks on a link, the link triggers the current table to hide and another to appear.
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4. a creative method / useful / incredibly simple bore by a user of this forum.
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Published by: rabbitman June 4, 2012 08:07I don't know if it's the best way to accomplish what you want, but it worked for me.
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Hello
Then I come on this way to ask for assistance on the implementation of the legacy on my request. So the problem is:
I apply I need to capture audio and analyzing this capture of the Spectrum Analyzer, Volumes etc.
So I will use several microphones in this application, I will use the same code in the audio capture.
I have a class called Application which has GUI and events, such as events of button and update the values in the GUI. In my first version of the Application, I have everything here, but I had Don t like that and is not good for performance, so I want to divide the code by other classes. That's why I try to the legacy.
So I created a class called equipment which is the super class and in this class will have the method captureAudio(), the calculateRMSLevel(), the sendOutPresenceUpdates() etc... And I have 3 variables:
public abstract class Equipment { public AudioFormat format; public TargetDataLine line; public Mixer mixer; public EventListenerList listenerList = new EventListenerList(); public Equipment(AudioFormat format, TargetDataLine line, Mixer mixer){ this.format = format; this.line = line; this.mixer = mixer; } public AudioFormat getFormat() { return format; } public void setFormat(AudioFormat format) { this.format = format; } public TargetDataLine getLine() { return line; } public void setLine(TargetDataLine line) { this.line = line; } public Mixer getMixer() { return mixer; } public void setMixer(Mixer mixer) { this.mixer = mixer; } public int calculateRMSLevel(byte[] audioData){ // audioData might be buffered data read from a data line long lSum = 0; for(int i=0; i<audioData.length; i++) lSum = lSum + audioData;
double dAvg = lSum / audioData.length;
double sumMeanSquare = 0d;
for(int j=0; j<audioData.length; j++)
sumMeanSquare = sumMeanSquare + Math.pow(audioData[j] - dAvg, 2d);
double averageMeanSquare = sumMeanSquare / audioData.length;
return (int)(Math.pow(averageMeanSquare,0.5d) + 0.5);
}
public void sendOutPresenceUpdates(int FullJIDAndResource, String NewPresence) {
Object[] listeners = listenerList.getListenerList();
Integer inputValue = _FullJIDAndResource;
String convertedValue = inputValue.toString();
// Empty out the listener list
// Each listener occupies two elements - the first is the listener class and the second is the listener instance
for (int i=0; i < listeners.length; i+=2) {
if (listeners[i]==CustomPresenceListener.class) {
((CustomPresenceListener)listeners[i+1]).presenceEventOccurred(new CustomPresenceEvent(this, convertedValue, _NewPresence));
}
}
}
public void listenForPresenceEvents(CustomPresenceListener _listener) {
listenerList.add(CustomPresenceListener.class, _listener);
}
public void removeEventListener(CustomPresenceListener _listener) {
listenerList.remove(CustomPresenceListener.class, _listener);
}
public void captureAudio(){
}
class Microphone1 extends material {}And i have questions about the constructor, is right the constructor that i created in the superclass? So i create a subclass called Microphone1 and in this class i make override from the method captureAudio() from the superclass and here i create the thread for the capture.
Public Microphone1 (format AudioFormat, line TargetDataLine, drummer mixer) {}
Super (format, line, mixer);
}
public void captureAudio() {}
try {}
format = getFormat();
MixerInfo [] Mixer.Info = AudioSystem.getMixerInfo ();
DataLine.info get information on line.
DataLine.Info info = new DataLine.Info (TargetDataLine.class, format);
Drummer mixer = AudioSystem.getMixer(mixerInfo[3]);
Download the info from the desired line.
line = (TargetDataLine) AudioSystem.getLine (info);
Get a TargetDataLine on selected mixer.
line = mixer.getLine (info) (TargetDataLine);
Line.Open (format);
Line.Start ();
CaptureThread captureThread = new CaptureThread();
captureThread.start ();
} catch (Exception e) {}
System.out.println (e);
System.Exit (0);
} //end wrestling
}
Microphone1 m1 = new Microphone1 (format, line, mixer);But now i have a problem in the class Application, because i want to start the capture when i click in the button so i created the actionPerfomed and inside of this event i create this:
M1.captureAudio ();But when i execute the application and click in the button appears this: java.lang.NullPointerException :/ and i don't know how to solve this. Any help? Where i am wrong?Well Yes, see also http://download.oracle.com/javase/tutorial/java/index.html
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Change the location of several pictures at the same time?
I see how to change the location of a photo at a time. Is it possible to change the location of several pictures at the same time?
Thank you
Phil
Select the photos and info - enter the location (or any other field of the info) and it is applied to all photos
This is described in using Photos - a good place to get help with Photos
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LN
- Open the Info window: Double-click a photo to view it, and then click the Info button
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Hello!
Thank you to get in touch with us here at Mozilla's Support. I'll do my best to help you.
To better help you with your question, please provide us with a screenshot. If you need help to create a screenshot, please see How to make a screenshot of my problem?
Once you have done so, attach the file to screen shot saved to your post on the forum by clicking on the button Browse... under the box to post your reply . This will help us to visualize the problem.
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