I have Java Applet(J2EE), I want to make it accessible only to a certain set of users,by authenticating them using username and password.What is the the best way of doing this?
What is the best was to retrieve a file from a server using SFTP (as opposed to FTPS) using Java?
I'll leave the particular definition of best up to you but in my mind it should include free :)
I know in Jython you can do
import java.util.Random as Random
Random().nextInt()
But if I have a class I wrote myself, how can I import it into Jython without putting the class itself in a package? If I have a testclass Test:
public class Test {
public void foo() {
System.out.println("bar");
}
}
that's not inside a package. Can I even import that into jython by using something along the lines offrom Test import Test?
I've found that java.lang.Ingteger implementation of compareTo method looks as follows:
public int compareTo(Integer anotherInteger) {
int thisVal = this.value;
int anotherVal = anotherInteger.value;
return (thisVal<anotherVal ? -1 : (thisVal==anotherVal ? 0 : 1));
}
The question is why use comparison instead of subtraction:
return thisVal - anotherVal;
Hi,
After I read Bloch's discussion http://www.infoq.com/news/2010/04/bloch_java_future
I started to think about "Do I have to switch to scala for new web developements" or is java preferred in all cases. What is your opinion ?
Thanks,
Hi,
I would like to open a webpage and run a javascript function from within a java app.
For example I would like to open the page www.mytestpage.com and run the following javascript code:document.getElementById("txtEmail").value="[email protected]";submit();void(0);
This works in a browser...how can I do it programatically?
Thanks!
I'm writing an application which monitors the person’s mouse and keyboard. If they have not used the keyboard or mouse for 1 minute, it should pops up a message which says “You have not used the mouse or keyboard for 1 minute” and an OK button.
How do I do this in Java?
Hello,
In which case should you use primitive types(int) or complex types(Integer)?
Ex:
http://stackoverflow.com/questions/2508918/why-java-compiler-does-not-like-integer-as-type-for-values-in-hashmap this example works with Integer type. Should we always use Integer as a complex type?
Hi all! I'm making an android program that retrieves content of a webpage using HttpURLConnection. I'm new to both Java and Android.
Problem is: Reader reads whole page source, but in the last while iteration it doesn't append to stringBuffer that last part.
Using debbuger I have determined that, in the last loop iteration, string buff is created, but stringBuffer just doesnt append it.
I need to parse retrieved content. Is there any better way to handle the content for parsing than using strings. I've read on numerous other sites that string size in Java is limited only by available heap size. I've tried with StringBuilder too.
Anyone know what could be the problem. Btw feel free to suggest any improvements to the code.
Thanks!
URL u;
try {
u = new URL("http://feeds.timesonline.co.uk/c/32313/f/440134/index.rss");
HttpURLConnection c = (HttpURLConnection) u.openConnection();
c.setRequestProperty("User-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)");
c.setRequestMethod("GET");
c.setDoOutput(true);
c.setReadTimeout(3000);
c.connect();
StringBuffer stringBuffer = new StringBuffer("");
InputStream in = c.getInputStream();
InputStreamReader inp = new InputStreamReader(in);
BufferedReader reader = new BufferedReader(inp);
char[] buffer = new char[3072];
int len1 = 0;
while ( (len1 = reader.read(buffer)) != -1 )
{
String buff = new String(buffer,0,len1);
stringBuffer.append(buff);
}
String stranica = new String(stringBuffer);
c.disconnect();
reader.close();
inp.close();
in.close();
I have created a Java Swing application. It works fine.
I have created application file (.app) for that application using jar bundler.
But the main problem is that my application does not open if I click it on the Dock. I am using Mac OS. How I can launch my application by clicking on Dock
Thanks
Sunil Kumar Sahoo
I have been working with the Swing library for a long time, I'm working on a new project for school and due to the nature of the program it can't look like a generic/boring swing gui. So my question is does anyone know of an interesting java gui library that is not swing or awt?
I have an android app that I am trying to get a file path for a SAX parser. I have the following structure:
assets:(Where my xml file is)
src(same level as assets)
com
msi
androidrss(The calling java file is in here)
I tried several variations of this:
InputSource is = new InputSource("file://../../../../assets/Rss.xml");
But I always get a FNF Exception
Any suggestions?
Thanks
I want to create a TreeMap in Java with a custom sort order. The sorted keys which are string need to be sorted according to the second character. The values are also string.
Sample map:
Za,FOO
Ab,Bar
how to do the 3D Animation in java? what are the packages to be needed? i am very newbie about this topic. Sample Code, Tutorials and articles are more thankful. Tell me how i have to start please?
NOTE: its for Mobile Appication.
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 ?
What JAVA library should I be using to Hash passwords for storage in a database?
I was hoping to just take the plain text password, add a random salt, then store the salt and the hashed password in the database.
Then when a user wanted to log in, I could just take their submitted password, add the random salt from their account information, hash it and see if it equates to the stored hash password with their account information.
In my code I am using java.sql.PreparedStatement.
I then execute the setString() method to populate the wildcards of the prepared statement.
Is there a way for me to retrieve (and print out) the final query before the executeQuery() method is called and the query is executed? I Just want this for debugging purposes.
Thanks.
I've looked around for a good example of this, but I haven't run into one yet. I want to pass a custom string array from java to oracle and back, using the IBATIS framework. Does anyone have a good link to an example? I'm calling stored procs from IBATIS.
Thanks
In my java application i am having latitude information in this format 28"41'44.13597 .
My need is to convert the same information into 28.705450.
Please help through code or any references
Thanks in advance
I have line in JAVA and in while i get number:
i = gzipinputstream1.read(abyte0, j, 4096);
From while number:
959
1552
1577
1617
1680
when i want use in php:
$i = fread($handle, 959):
while return:
959,
959,
959,
5
How make that in PHP result will be the some. thanks
Hi,
I have a java web application .
Currently the application is installed in a cli mode [on windows/linux /solaris] by running sh or cmd scripts.
I would like to create a GUI for the App installation so that user can edit info in gui for the installation.
Any pointers/Best practices for developing gui would be helpful.
thank you
I'm new to java and i'm trying to find a way of incrementing through an user input IP address range.
For example from 192.168.0.1 to 192.168.0.255. However the way my application works at the moment is the take the from and to ip addresses as a String.
Is there a way I can increment through all the ip addresses the user input from and to?
Hope this makes sense and please dont flame me, I have looked for an answer!
Hello,
I am writing a user defined function to DB2 on AS/400 in Java and the strangest thing happen..
I am always getting the same result from the function even when i am changing it, even if i am dropping it and create it again and even when i specify NOT DETERMINISTIC..
Does any one have ever encountered a behavior like that?
Hi,
I'm not quite sure what field to use when adding more than 30 days to a Java Calendar object. Is there any difference in between Calendar.DAY_OF_MONTH and Calendar.DAY_OF_YEAR?
Example:
GregorianCalendar d = new GregorianCalendar();
d.add(Calendar.DAY_OF_YEAR, 90);
vs
GregorianCalendar d = new GregorianCalendar();
d.add(Calendar.DAY_OF_MONTH, 90);
Thanks.