I am facing a tiny issue (I believe) in socket programming. When sending text from non-English languages, I get garbled results. After a lot of researching on google, I made some corrections. I changed getBytes() to getBytes(“UTF-8”) and tried to send some Arabic text. When connecting sockets loca…
Java – Split String into sentences with character limitation
I want to split a text into sentences (split by . or BreakIterator). But: Each sentence mustn’t have more than 100 characters. Example: To: (3 elements, without breaking a word, but a sentence) How can I do this properly? Answer Solved (thank you Macarse for the inspiration):
passing reference as parameter in android
I am newbie in java/android. I am a c/c++ developer. May i know how to pass a reference as parameter in android. An illustrative c sample code shown below void main() { int no1 = 3, no2 = 2, sum =…
Viewing MBeans through jstatd
I am trying to monitor all Java processes running on a server via jstatd. I’ve got it set up enough that I can connect with VisualVM and see all running processes. Most displays work fine, however certain things (especially CPU usage and MBeans) do not display. Instead, it says: MBeans Browser Data not …
Platform’s default charset on different platforms?
Some legacy code relies on the platform’s default charset for translations. For Windows and Linux installations in the “western world” I know what that means. But thinking about Russian or Asian platforms I am totally unsure what their platform’s default charset is (just UTF-16?). Ther…
Regex for matching something if it is not preceded by something else
With regex in Java, I want to write a regex that will match if and only if the pattern is not preceded by certain characters. For example: I want to match if bar is not preceded by foo. So the output would be: Answer You want to use negative lookbehind like this: Where (?<!x) means “only if it doesn&…
How to make a copy of a file in android?
In my app I want to save a copy of a certain file with a different name (which I get from user) Do I really need to open the contents of the file and write it to another file? What is the best way …
Declaring an ArrayList object as final for use in a constants file
I am generating an ArrayList of objects. Following is the code ArrayList someArrayList = new ArrayList(); Public ArrayList getLotOfData() { ArrayList someData = new ArrayList(); return someData; } …
Validating a Signature of a SOAP Message
Everybody, Hello! This is my request message: I try to validate the <ds:DigestValue>RJhc1ZVjXdUQEIwLTH356p7H0QY=</ds:DigestValue> which is related to the body tag. There are tags like ds:CanonicalizationMethod and ds:Transformswhich are really confusing for me. My question is how to validate the b…
How can I call servlet from jsp without using form
This could be a repeat question, I apologize. I have a jsp page in which I have some buttons. Each button has its own servlet to call. I want to know if there is any way I can call these servlets without using form because the user may choose any of the 3 functionalities given. I also need to pass