String « JOptionPane « Java Swing Q&A

1. Using a string containing variables in JOptionPane stackoverflow.com

I am trying to build a string using "if" statements, and then using the built string to show in a JOptionPane.

//If the value is zero, don't show the line item
 if ...

2. Why does JOptionPane disturb my string? stackoverflow.com

I have a line of code similar to the following:

final String food = 
    (String) JOptionPane.showInputDialog(this, "Choose a food", "Food",
         ...

3. Java, How to handle both JOptionPane NumberFormatException input string and NumberFormatException:Null error? stackoverflow.com

In my program , I have to calculate GPA from given letter-grade and numeric grade. In the first dialog-box however if I click cancel it gives me numberFormatException null error and ...

4. JOptionPane String formatting coderanch.com

5. input multiple strings using JOptionPane.showInputDialog coderanch.com

I am pretty sure the answer to my question will be NO, but I will ask anyway. For a homework assignment in my Into to Java Class I have to write a simple program that will take user input in the for of a string for gallons and miles driven and compute the MPG. I have the program doing what I ...

6. Setting strings explicitly and using JOptionPane - UTF Character conversion problems... coderanch.com

I've been scratching my head over this one for months; I would have thought it simple enough but hey. The problem I'm having is that I want to input a UTF8 code, say \u3088, into a JOptionPane.showInput prompt, and then have a showMessageDialog come back with , the Japanese character. I've read through and adapted code from this tutorial:UTF encoding Tutorial ...

7. How do i display a list of strings on one JOptionPane.showMessageDialog? java-forums.org

I just want one JOptionPane.showMessageDialog to display all the user's selections and in case there is no selection but the user presses the button, i want a message of this kind to be displayed:"please make a selection" could you please help me do so?here follows my source code: Java Code: //file: DriveThrough.java import java.awt.*; import java.awt.event.*; import javax.swing.*; public class DriveThrough ...

8. Simple question involving Strings and JOptionPane java-forums.org

Get your String, trim it by calling trim() on it, and then parse it into an int using Integer.parseInt(s). You should do this inside of a try/catch(NumberFormatException). If the parse succeeds, then code below the parse will be called. If not, the catch block will be called. If this doesn't make sense, please check out the Java Tutorials on how to ...

9. Converting a String from JOptionPane into a byte forums.oracle.com

Hi all, I need to convert a String from a JOptionPane into a byte. The JOptionPane String is supposed to collect a single digit numeric number, and then convert it into a readable byte, so if I put in "8" as an input then I would expect the byte value to be 8 as well etc. The byte will then be ...

10. how to open url from string on JOptionPane? forums.oracle.com

I wanted to do the same thing a few weeks ago, but I gave up. It's not impossible, but a bit complicated for my needs. To open the URL in the browser you need to do a system call to open an external application (the web browser) from your Java app. Therefore you must know the correct path to the application ...