JOptionPane Display Difficulties

Hello to all

I am trying to practice with arrays and GUI's using joptionpanes or boxes as well.

I am having difficulty with viewing the resulting windows. If you enter 5 as the size of the array then the window should print 5 4 3 2 1 in the messagebox but instead it freezes after I enter 5 and nothing happens, also if I just use the CMD to deliver the message "Please enter the size of the array: " then it works but I have to select ok 5 seperate times for each number instead of one box displaying 5 4 3 2 1.

How can I fix this. Here is the code that I made

Code:

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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.JOptionPane;

public class array{
        static Scanner console = new Scanner(System.in);
        JFrame frame;
 
public array(){
        frame = new JFrame("Array");
        JButton button = new JButton("Enter Here");
        button.addActionListener(new MyAction());
        frame.add(button);
        frame.setSize(400, 400);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        }


public class MyAction implements ActionListener{
        public void actionPerformed(ActionEvent e){
                JOptionPane.showInputDialog(null, "" + "Enter the size of the array: ");
                int arraySize;
                arraySize = console.nextInt();       
                int[] list = new int[arraySize];
                for (arraySize = 0; arraySize < list.length; arraySize++)
                if (arraySize == 0) continue;
                else
                JOptionPane.showMessageDialog(frame, "" + arraySize + " " +
                "is your number", "Your Silly Numbers",
                JOptionPane.INFORMATION_MESSAGE);
                JOptionPane.showMessageDialog(frame, "" + list.length + " " +
                "is your number", "Your Silly Numbers",
                JOptionPane.INFORMATION_MESSAGE);
               
        }
}


public static void main(String[] args){
    array db = new array();
        }
}

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This blocks input at the console

Code:

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int arraySize = console.nextInt();

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Code:

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import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;

public class AnArrayTest {
    Scanner console = new Scanner(System.in);
    JFrame frame;
 
    public AnArrayTest() {
        frame = new JFrame("Array");
        JButton button = new JButton("Enter Here");
        button.addActionListener(new MyAction());
        JPanel panel = new JPanel();
        panel.add(button);
        frame.add(panel);
        frame.setSize(400, 400);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public class MyAction implements ActionListener{
        public void actionPerformed(ActionEvent e){
            String input = JOptionPane.showInputDialog(null,
                                      "Enter the size of the array: ");
            int arraySize = //console.nextInt();
                            Integer.parseInt(input.trim());
            int[] list = new int[arraySize];
            for (int arrayIndex = 0; arrayIndex < list.length; arrayIndex++) {
                list[arrayIndex] = arraySize - arrayIndex;
            }
            String values = Arrays.toString(list);
            JOptionPane.showMessageDialog(frame, values + " " +
                                  "is your number", "Your Silly Numbers",
                                  JOptionPane.INFORMATION_MESSAGE);
            }
        }

    public static void main(String[] args){
        new AnArrayTest();
    }
}

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Thank you this worked well. i understand everything you did except this statement in the code

String values = Arrays.toString(list);

Also can I get the lines to print after 45 numbers on a new line. I am going to look this up and if I figure it out before someone posts I will post my findings.

Thanks

This is what I changed. it compiles, but I am still not able to start a new line after 40 numbers show.

Code:

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public class MyAction implements ActionListener{
        public void actionPerformed(ActionEvent e){
            String input = JOptionPane.showInputDialog(null,
                                      "Enter the size of the array: ");
            int arraySize = //console.nextInt();
                            Integer.parseInt(input.trim());
            int[] list = new int[arraySize];
            for (int arrayIndex = 0; arrayIndex < list.length; arrayIndex++){
            list[arrayIndex] = arraySize - arrayIndex;}

            values = Arrays.toString(list);
            if ((arraySize - 0 + 1) % 40 != 0)

            JOptionPane.showMessageDialog(frame, values + " " +
                                  "are your numbers", "Your Silly Numbers",
                                  JOptionPane.INFORMATION_MESSAGE);

            }
        }

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Quote:

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Originally Posted by kewlgeye

String values = Arrays.toString(list);

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It's the string representation of the array specified.

Ok, everything is start from the user input size. Say the input is 45. What you want to do is, display 40 in one line and remain 5 is in the next line.

You try it in some way, what you want to do is do the same process for different sizes. Got it?

if ((arraySize - 0 + 1) % 40 != 0)


This is the only thing that I know how to do in order to accomplish my goal. I read this off of a site, that is the if statement above.
I don't know how to get it to print to the next line after 40 number. I thought that the statement above did this and my placement of it was ok. This is where I need help. Either showing me, or a link that shows how to accomplish this within a JOptionPaneShowMessage window.

"arraySize" is a constant.

Code:

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            int arraySize = Integer.parseInt(input.trim());
            int[] list = new int[arraySize];
            for (int i = 0; i < list.length; i++) {
                list[i] = i+1;
            }
            String values = "";
            for(int i = 0; i < list.length; i++) {
                values += list[i];
                if(i < list.length-1)
                    values += ", ";
                if((i + 1) % 40 == 0)
                    values += "\n";
            }
            JOptionPane.showMessageDialog(frame, values + " " +...

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