hi,
when I write a new text file in Java, I get these characters at the beginning of the file:
¨Ìt
This is the code:
public static void writeMAP(String filename, Object object) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(filename));
oos.writeObject(object);
oos.close();
}
thanks
What is the correct way of knowing operating system language (locale) from java code?
I have tried
Locale.getDefault()
System.getProperties("user.language")
etc.
but they are not correct nothing actually displays the "System Locale" which is available by the command "systeminfo" in windows.
Please help.
Hi,
I am creating one application in java using swing.In that i have an array of String, I try to use html marquee tag to scroll all the strings one by one from top to bottom.But the marquee tag doesn't support in the panel. How can i acheive it.Can any one suggest me?
Thanks in advance
In my web application i want to implement the OpenId just like stackoverflow.com have to login to its web-site.
In details you find while login to stackoverflow.com
So when if one choose google then it allow the uses to log in through google account.
Please tell me how to implement it in java web application in details. Is there any single api for login through different website like(yahoo,google,facebook,etc)
Thanks
hi , i am new to web programming in java , i want to know how to use web api such as google api ,
facebook api in my code
so i need to know how to begin and what i need to do that .
thanks
I want to add days to a date to get a new date in Java. How to achieve it using the Calender class.
Calender dom = new GregorianCalender(d, m y);
is the instance of my date of manufacture and I want to reach to date of expiry adding some 100 days to the current date and store it in doe but unable to do that.
Any help would be appreciable.
Hi, I have an ASCII String, with HTML entities, like:
à
¨
ç
I need this String to be without those entities and convert them into UTF-8 chars.
Is there any easy way, in java to do that?
Where:
Clazz.method("aà","UTF-8")
returns "aà"
or something like that?
Java loads the resources as they are needed. This make my tiny small desktop application to be very slow when opening a window.
How can I do to load all the resources when starting the app? Is something related to classloaders?
Today I was browsing through some question on this site and I found mention of enum being used in singleton pattern and that there are some thread safety benefits to such solution.
I never used enums and I have been programing in java for more than couple a years now. And apparently they changed a lot and now they even do full blown support of OOP within them selfs.
Now why and what for should I used enum in day to day programing?
Hi,
I have a Windows Server that recives mail. These mail contains only 1 single CSV file. I want my server to automatically take the attachment from any incoming mail and send to a java program locally installed. Is there anyone who can give me directions on any programs that fix this or do I need to create some kind of windows service?
Thankful for any help!
I have database with oracle number type. Could there any possible issues with using java Double when updating table with numeric column. Should i switch BigDecimal or Double is approriate type.
As I fas as I know, BigDecimal is used when arbitrary precision required, when deal with prices for example.
Consider simple API updatePrice(Double d) Should i persist double as is or BigDecimal.valueOf(d) is preferable ?
Hi all
i have created a java application which uses data from its config folder and , it also uses third party jar files those are located in lib folder, could anyone tell me how to create jar file for this project with the content stored in config file and lib folder.
i tried creating jar using eclipse export functionality. when i run this jar file, it says it can not find the third party libraries that i have used for this project and configuration file.
thanks in advance for any help
I'm looking for a Java ORM that works from database reflection - I need to just point it at a DB, and start being able to walk through the entire set of tables, etc.
Ideas?
The examples for JNI i've seen map Java native methods to implementation by C++ global functions. Is there a way to set the native methods implementation to be the member functions of a C++ object instead?
Given a list of potential class names:
1. Alaska
.
.
.
50. Wyoming
Is there a tool that will create empty java class files for each with supplied parameters?
I'm thinking of something like the "New...Class" dialog in Eclipse, only on steriods. :-)
Thanks in advance,
Kyle
I have read this question and I'm still not sure whether it is possible to keep pointers to methods in an array in Java, if anyone knows if this is possible or not it would be a real help. I'm trying to find an elegant solution of keeping a list of Strings and associated functions without writing a mess of hundreds of 'if's.
Cheers
edit-
'functions' changed to 'methods', seems to bug people.
This is what I'm doing now. Is there a better way to access the super class?
public class SearchWidget {
private void addWishlistButton() {
final SearchWidget thisWidget = this;
button.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
// A better way to access the super class?
// something like "this.super" ...?
workWithWidget(thisWidget);
}
}
}
}
I'm programming with Google Web Toolkit, but I think this is really a generic Java question.
I have an web application written in Java, and I have a thread-pool.
The application is huge, and I cannot make major changes, for example, I cannot change log4j.
I am executing a batch process in the thread pool, and I want to log everything that goes is executed to execute that process.
There will always be just one thread active in the thread pool.
Any ideas of how can I do that?
I am trying to print a double value in my java code. but it is printing in matissa and exponent format which I dont want to. ie
for example:
instead of printing 1234567 it is printing 1.234567E6
how to avoid that.
Im using Java to create a maze of specified "rows" and "columns" over each other to look like a grid.
I plan to use a depth-first recursive method to "open the doors" between the rooms
(the box created by the rows and columns).
I need help writing a openDoor method that will break the link between rooms.
When I do the following in Java:
System.out.println(2.2-2.0);
It unexpectedly prints the following:
0.20000000000000018
What is this and how can I avoid this?
Hi All
I want to generate image on server side. My Image is stored in server side's database in blob format and I am able to convert it into string_image;
Then How to convert that string_image into actual .jpg or .png format.
Actually I am posting attachment as image on users facebook' wall.
How to generate Image at server side in Java?
Is there any sample code to do it?
I'd like to ask another question how to handle Windows' events in Java. To be specific, I'd like to know how to handle events such as mouse moved or mouse clicked in Windows XP and Vista. I want to wire my own custom behavior in my application to these events, even when my application is inactive or otherwise hidden.
All help is appreciated!