Printing an array in a single dialog box (Java)

Question

This is the current code I have. It works but it would output the numbers in multiple dialog boxes. I don't have any idea how I should print them in a single dialog box, separated by lines.

import javax.swing.JOptionPane;

public class SecondClass
{
    public static void main (String args[])
    {

        int stringLength;
        char num[];


        String value = JOptionPane.showInputDialog (null, "Input numbers", JOptionPane.QUESTION_MESSAGE); //input
        stringLength = value.length(); //getting string length and converting it to int
        num = value.toCharArray(); //assigning each character to array num[]


            for (int i = 0; i <= stringLength; i++) {
                JOptionPane.showMessageDialog (null, "You entered " + num[i] , "Value", JOptionPane.INFORMATION_MESSAGE); //output box
            }
    }
}

Answer 1

Correct this snippet:

 for (int i = 0; i <= stringLength; i++) {
                JOptionPane.showMessageDialog (null, "You entered " +
                 num[i] , "Value", 
                 JOptionPane.INFORMATION_MESSAGE); //output box
 }

To

String out="";

 for (int i = 0; i < stringLength; i++) {
                out+= "You entered " + num[i] ;
 }
 JOptionPane.showMessageDialog (null, out, "Value\n", JOptionPane.INFORMATION_MESSAGE);