About JOptionPane.showMessageDialog

jhetfield18 · #1 (**permalink**) 11-02-2007, 12:14 PM

Hi I was wondering if I could use a for(){} in a JOptionPane.showMessageDialog.To explain,let's say I have an array A,full of integers,and have done two different equations using the numbers from A and stored the the results in two arrays B,C one for each equation.Can I use one message box to print all the results in a form like this:
Number: ......
Result for equation no.1: ......
Result for equation no.2: ......

So it becomes like this in the message box:

Number: ......
Result for equation no.1: ......
Result for equation no.2: ......

Number: ......
Result for equation no.1: ......
Result for equation no.2: ......

Number: ......
Result for equation no.1: ......
Result for equation no.2: ......

Number: ......
Result for equation no.1: ......
Result for equation no.2: ......

..................................

Can I do this????Is there any way?Perhaps another message dialog command from another library that supports many results?

Regards,Nick

hardwired · #2 (**permalink**) 11-02-2007, 05:33 PM

JLabel supports html 3.2 (roughly).
Another option is to make up your own JDialog for this.

Code:

// intiialize your_components
// add listeners as needed
JDialog dialog = new JDialog(new Frame());
dialog.getContentPane().add(your_components)
dialog.pack();
dialog.setLocation(...)
dialog.setVisible(true);
// carry on as desired..

Code:

import javax.swing.*;
import java.util.Arrays;  // j2se 1.5+

public class OptionsTest {
    public static void main(String[] args) {
        int[] data = { 2, 3, 4, 5 };
        int[] squares = getSquares(data);
        int[] cubes = getCubes(data);
        System.out.printf("squares = %s%n", Arrays.toString(squares));
        System.out.printf("cubes   = %s%n", Arrays.toString(cubes));
        String s = formatResults(data, squares, cubes);
        JOptionPane.showMessageDialog(null, new JLabel(s), "Results",
                                      JOptionPane.PLAIN_MESSAGE);
    }

    static private int[] getSquares(int[] input) {
        int[] out = new int[input.length];
        for(int j = 0; j < input.length; j++) {
            out[j] = input[j]*input[j];
        }
        return out;
    }

    static private int[] getCubes(int[] input) {
        int[] out = new int[input.length];
        for(int j = 0; j < input.length; j++) {
            out[j] = input[j]*input[j]*input[j];
        }
        return out;
    }

    static String formatResults(int[] input, int[] one, int[] two) {
        // StringBuffer is the legacy alternative for j2se 1.4-.
        StringBuilder sb = new StringBuilder("<html>");
        for(int j = 0; j < input.length; j++) {
            sb.append("Number: " + input[j] + "<br>");
            sb.append("Result for equation no.1: " + one[j] + "<br>");
            sb.append("Result for equation no.2: " + two[j] + "<br><br>");
        }
        return sb.toString();
    }
}

jhetfield18 · #3 (**permalink**) 11-02-2007, 11:45 PM

I guess that the new dialog idea would be better since i don't know html apart from a little here and there.So I'll search around and try that
Thx man!!!!!