String « Development « Java Swing Q&A





1. Best practice for handling null strings from database (in Java)    stackoverflow.com

In my database application I sometimes have to deal with null strings in the database. In most cases this is fine, but when it comes do displaying data in a form ...

2. Java simple String diff util    stackoverflow.com

I'm looking for a simple java lib/src to highlight differences between two Strings, case-sensitive. A html output would be great, but I would be happy to get the indexes of the ...

3. Convert Java resultset to String array    stackoverflow.com

I am writing a program that will query an MS access database, return the query as a result set, and then I want to ultimately convert that result set into a ...

4. StringBounds of htmlized string    stackoverflow.com

Is it possible to calculate the bounds of a htmlized String in Java Swing? I tried using the BasicHtml.createHTMLView, but kept getting the same prefSpan; irrespective of the component font. Regards,
Pavan

5. Managing string resources in a Java application - singleton?    stackoverflow.com

I seek a solution to the age-old problem of managing string resources. My current implementation seems to work well, but it depends on using singletons, and I know how often singletons ...

6. convert the output of PinField.getPassword() to string    stackoverflow.com

        if ("Submit".equals(cmd)) { //Process the password.
    String UserNameInput=UserName.getText();
    ///////////////////////////////ERROR Pin when printed shows error/////////////////////////////
    ...

7. How do I display the contents of a String array in Java Swing    stackoverflow.com

I am new to swing and am trying to write a simple program that displays the permutations of a user-defined string by having a jtextfield that the user enters the string ...

8. Java: String: Is there a better way to compare Strings    stackoverflow.com

I feel curious this morning and was wandering if somebody had a better way to do this

if(TAG_PLAY.equalsIgnoreCase(e.getActionCommand())
   ||TAG_PASSWORD.equalsIgnoreCase(e.getActionCommand())
   ||...
){
I'm having a hunch that this could be ...

9. (java.lang.String) cannot be applied to (java.lang.Object)    stackoverflow.com

Ive a Listner class called TopicS Im trying to call it from a gui called readMessages When Im trying to run the class TopicS using the following method,

   ...





10. Capturing System.out.println or stdout data to a swing memo (Huge Data)    stackoverflow.com

Hi I need to show the result in a memo instead using System.out.println, but isn't possible to put the stdout in a list for example and after display the contents of ...

11. adding formatting to java formatter    stackoverflow.com

I'm writing a notepad clone to learn more about guis. My program creates a text file with the code:

             ...

12. Problem converting String->Float->String    stackoverflow.com

I have a JTable where i enter some values. This is the listener function to know if it has been made any change at the values, so i can update them. ...

13. String to JComponent    stackoverflow.com

I'm using BalloonTip in my code, and I need this constructor:

    public TablecellBalloonTip(JTable table, JComponent component, int row, int column, BalloonTipStyle style, Orientation alignment, AttachLocation attachLocation, int horizontalOffset, ...

14. How can i perform the following conversion?    stackoverflow.com

Formatter fmt=new Formatter();
Calendar cal=Calendar.getInstance();
fmt.format("%tc",cal);
System.out.print(fmt);
// Instead of System.out.print(fmt); i want to print the value of fmt on JTextArea.But as we know JTextArea accepts only String value.So how can i convert Formatter fmt ...

15. Comparison of Strings    stackoverflow.com

Possible Duplicate:
How do I compare strings in Java?
Am I am comparing strings in the wrong way? Please show me how to compare correctly? Thanks.
private ...





18. Making an instance of a class from a String?    coderanch.com

Hello I posted a similar question today. I got some replies..thanks ! However I came across a similar problem. The code below tries to create an instance of a class from a string. That is .. whatever the name of the String is that is what the name of the instancve of the class will be. The code is obviouly not ...

19. Formatting a String    coderanch.com

hi, As per ur requirement, Lets say that the concatenated string is conStr , We need to check for the existence of "!" before appending the newly entered string, we can check for the existence of "!" using indexOf method , conStr.indexOf("!"), this returns an ineteger, if thios integer is greater than -1 , then it represents that the character already ...

20. Feeding strings to CheckBoxCellEditor    coderanch.com

21. String to integer??    coderanch.com

22. attributed string storage    coderanch.com

Hi, I am trying to create a multiline text area component with styled text without using the swing components. What I am doing is dividing the string data into different text layouts. What i need to do is apply different styles and attributes to this data. However I am unable to deicide as to how I shud be storing the attributed ...

23. Wrinting a string vertically    coderanch.com

No, you cannot cast a String to Graphics2D. If you overload the paint method of your component you can use the drawString() method in combination with the rotate method to draw the string you need. So you will probably have to do something like this. public void paint(Graphics g) { Graphics2D g2d = (Graphics2D)g; g2d.drawString("hello, i am here", 0, 20); g2d.rotate(90); ...

24. string concatenation    coderanch.com

25. Converting a Vector to a String    coderanch.com

Hi, So u got the soultion how to convert the vector into string but i thought u dont need to convert vector into String for your requirement.... You can select the value directly from combobox just by the method jCombobox.getSelectedObject return object convert it into string by toString method and if u want an index u get it by jComboBox.getSelectedIndex return ...

27. Make String display bold or italic    coderanch.com

Hi , I tested the methos posted by "dave taubler" and found that the specialValue mentioned "x", would not serve the purpose. Which means if i have a value x that verfies to true, then the entire table rows will be bolded. Instead only custom renderer could be used to serve the purpose. Suppose based on the column cell value at ...

29. Replacing substrings in string    coderanch.com

Hi everyone. I wanted to make a program part, which replaces "<" and ">" with "<" and ">" so it won't dissappear in HTML context. My problem is that the following method doesn't do it at all: public void fillVectors( Vector targetVector, String path ) { String str; String sentence = ""; if( type.equals( "lines" ) ) { try { BufferedReader ...

31. retrieving string from a webpage    coderanch.com

32. how i pass recordset value to string variable    coderanch.com

The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - ...

34. Formatting a String to a decimal    coderanch.com

36. String to Robot?    coderanch.com

I am writing a handwriting input tool for my linux tablet computer. I've figured out a gui approach that doesn't steal the focus from other windows, so the user can write on the gui, and the text generated will go to the other (not just java - any window that has the system focus) window. Now I'm working out how to ...

37. GUI and Strings    coderanch.com

Can't work out how to take them in, I've had it so it will work out the pounds to kilos, but can't seem to send it down. I've tried a few different strimgs etc, here is the code. import element.*; import javax.swing.JOptionPane; public class WeightConversion { public static void main (String [] args) { //variable double pound, kilo; int count = ...

39. Problem with String Tokenizer    coderanch.com

when i click on the search button.... i get the message displayed by the exception. Can anyone tell me where i am going wroong.. the text file is in the correct place. I think im not opening the file correctly import java.awt.*; import java.awt.event.*; import javax .swing.*; import java.io.*; import java.awt.event.ActionEvent; import java.util.StringTokenizer; public class FindPatient extends JFrame implements ActionListener { ...

40. add string component to the list    coderanch.com

42. Rowfilter regexFilter digits as strings    coderanch.com

44. Serious issue: NumberFormat String Parse int problem    coderanch.com

Sorry I haven't replied. Was busy finishing school projects, hw, and such. Anyway, I'm not quite sure how to do what you suggested. I changed the line: public NumberFormat yucker = NumberFormat.getNumberInstance(); to: public NumberFormat yucker = NumberFormat.getIntegerInstance(); and I'm coming up with the same results. I was thinking about changing all my code to the setValue(); and all that, but ...

45. Super and sub string in java to string    coderanch.com

46. Searching a String from Text file using Swings .    java-forums.org

hi friends .i am pradeep.i want a program to search using JButton in Swings. i have text file called u.txt and in that file code and description both fields are there . if i enter any word related to the fields of u.txt file and when i click the the button it should print the whole values about that word from ...

47. Can't convert java.lang.String to int.    java-forums.org

48. I would then store a string...    java-forums.org

49. Problem with string tokenizer    java-forums.org

I have the required information saved to "patients.txt" but when i enter the name i want to "search" by the rest of the information should be read from the file and printed to the relevant text fields... i keep getting the exception message ie "Cant open file"... im thinking this is because i have not opened the file correctly?... ps please ...

50. how to store string in text file    java-forums.org

51. make a string as a link    java-forums.org

52. Help with String Buffer    java-forums.org

import javax.swing.JOptionPane; public class mainCount { public static void main(String[] args) { String s = JOptionPane.showInputDialog(null, "Enter a string with numbers: ", "Test Q 7-5", JOptionPane.QUESTION_MESSAGE); String s1 = filter(s); } public static String filter(String s) { StringBuffer strBuf = new StringBuffer(); for(int i = 0; i < s.length(); i++) { if(Character.isDigit(s.charAt(i))) { strBuf.append(s.charAt(i)); } return strBuf.toString(); } } }

53. Regular expression to find strings beginning with a particular digit    java-forums.org

import java.util.regex.Matcher; import java.util.regex.Pattern; public class testStringFunctionality { public static void main(String args[]) { String string="1*"; int count1=0; for(int i=0;i

55. displaying string    java-forums.org

hi, i'm quite new in java, just started to program in swing. one problem i really couldnt solve is that i have a string which i used to display output messages in text mode, it was alligned by adding spaces to them, however it doesnt work in graphical mode cos the spaces have a narrower width than the characters, so the ...

56. adding string to JextPane    java-forums.org

57. Add string    java-forums.org

I'm trying to write myself a code in which I can store names and then create a JList so that I can scroll through these names and then have a JMenuItem in the Contacts menu I have used to add a new name to the list. I have written the following that works for scrolling through the names as well as ...

58. GUI calculator string/number handling problem    forums.oracle.com

59. how to send byte array and String values to servlet from Swing application    forums.oracle.com

Hi all, I am new to swing, servlet, and socket connection. I have swing application to draw images and some input data. I dont know to send to server. byte[] buf = baos.toByteArray(); URL servletURL = new URL("http://10.70.70.1:8080/servlet/SaveImage) URLConnection conn = servletURL.openConnection(); conn.setDoOutput(true); BufferedWriter out = new BufferedWriter( new OutputStreamWriter( conn.getOutputStream() ) ); out.write(buf&a=aaaa&b=bbbbb); out.flush(); out.close(); can I do like this. ...

60. Having Problems with string tokenizer in GUI    forums.oracle.com