Dialog Boxes - a challenge set by myself

[brendanmcdonagh]

Hi all,

I'm just getting to grips with java and have set my self a challenge to consolidate my learnings so far as well as implement new learnings.

I want to enter a load of possible things to do into sets and then randomly generate a set value, which is a suggestion of what to do(Geeky - know!) There will be numerous sets, a set for me and my partner - my dog - my son. A set for me and my partner - my dog - no son, etc - basically what i want is to be asked if son and dog are with us in modal boxes and then navigate to a relevent set depending on input. Then generate a suggestion.

I will add my code thus far - it may be ver different to what others would do but i'm using what i ve learnt so far. Now, I haven't use modal/dialog boxes in java but have in VB - a while back. So first thing i need to do is learn how to use them. What code do i use and what do i import? I want to add a yes/no box in the launch method. I have learnt how to set the result into a variable but I was learning with the open university and they shown us with there own classes which were prob a sub class of some sort.Any help would be greatly appreciated. Here is my code:

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

public class Suggestion
{
Frame theFrame = new Frame();
Button addSuggestion = new Button();
//this order - Dan&Bren-Arial-Dylan
Set<String> YesYesYes = new HashSet<String>();
Set<String> YesYesNo = new HashSet<String>();
Set<String> YesNoYes = new HashSet<String>();
Set<String> YesNoNo = new HashSet<String>();
Set<String> BrenNoNo = new HashSet<String>();
public Boolean arial;
public Boolean dylan;

public void launch()
{
theFrame.setSize(500,500);
theFrame.setLayout(newFlowLayout());
addSuggestion.addActionListener(new ButtonListener());
theFrame.add(addSuggestion);
theFrame.setVisible(true);

public static void main(String[] args)
{
Suggestion newObject = new Suggestion();
newObject.launch();
}
}

Thanks for looking

[r035198x]

1.) Please use code tags when posting code.
2.) Do not mix awt and swing.
3.) Read the specs for the JOptionPane class.

[brendanmcdonagh]

But Don't I need Awt for something with this project and Swing for the dialog boxes?

[r035198x]

But Don't I need Awt for something with this project and Swing for the dialog boxes?

What you get from awt is available in swing. That Frame for example should be replaced by a JFrame.

[brendanmcdonagh]

I get you now - thanks

So Frame aFrame = new Frame();
should be JFrame aFrame = new JFrame();

and I delete java.awt.*;??

Is this the same for button() JButton()??

[brendanmcdonagh]

The JButton and JFrame works with Swing instead of awt but now I can't have new flowlayout as an argument, is there a way around this?

[r035198x]

I get you now - thanks

So Frame aFrame = new Frame();
should be JFrame aFrame = new JFrame();

and I delete java.awt.*;??

Is this the same for button() JButton()??

Right on track.

[brendanmcdonagh]

Hi I have got myself lost. I have a class as a button listener that does the job asked of it by the main class correctly. Now I want an text area in the frame that allows the user to input into a set. What i am struggling with is the code for a input text field and then on press of button get the text entered as a variable. I know my way around from there.


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

public class Suggestion
{
JFrame theFrame = new JFrame();
JButton addSuggestion = new JButton("Add Suggestion");
//this order - Dan&Bren-Arial-Dylan
Set<String> YesYesYes = new HashSet<String>();
Set<String> YesYesNo = new HashSet<String>();
Set<String> YesNoYes = new HashSet<String>();
Set<String> YesNoNo = new HashSet<String>();
Set<String> BrenNoNo = new HashSet<String>();





int arialComing = JOptionPane.showConfirmDialog
(// Parent component
null,
// String message
"Is Arial coming?");


int dylanComing = JOptionPane.showConfirmDialog
(// Parent component
null,
// String message
"Is Dylan coming?");


public void launch()
{

theFrame.setSize(500,500);
theFrame.setLayout(new FlowLayout());
addSuggestion.addActionListener(new ButtonListener());

theFrame.add(addSuggestion);
theFrame.setVisible(true);
}



public static void main(String[] args)
{
Suggestion newObject = new Suggestion();

newObject.launch();
}
}

If the person who helped me earlier reads this, I am struggling to enter my code in the code tag - it only enters a few words when I paste. Also I have kept java.awt.* in for now as I don't know how to work with layout s without it.

Regards

[Nepomuk]

Now I want an text area in the frame that allows the user to input into a set. What i am struggling with is the code for a input text field and then on press of button get the text entered as a variable. I know my way around from there.

Do you mean something like a JTextField or a JTextArea?

...
If the person who helped me earlier reads this, I am struggling to enter my code in the code tag - it only enters a few words when I paste....

To use the code tags, just write [code=java] before and [/code] after your code. That way, your code will look like this:

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class Suggestion
{
JFrame theFrame = new JFrame();
JButton addSuggestion = new JButton("Add Suggestion");
//this order - Dan&Bren-Arial-Dylan
Set<String> YesYesYes = new HashSet<String>();
Set<String> YesYesNo = new HashSet<String>();
Set<String> YesNoYes = new HashSet<String>();
Set<String> YesNoNo = new HashSet<String>();
Set<String> BrenNoNo = new HashSet<String>();
 
 
 
 
 
      int arialComing = JOptionPane.showConfirmDialog
                                    (// Parent component
                                     null,
                                     // String message
                                     "Is Arial coming?");
 
 
      int dylanComing = JOptionPane.showConfirmDialog
                                    (// Parent component
                                     null,
                                     // String message
                                     "Is Dylan coming?");
 
 
public void launch()
{
 
theFrame.setSize(500,500);
theFrame.setLayout(new FlowLayout());
addSuggestion.addActionListener(new ButtonListener());
 
theFrame.add(addSuggestion);
theFrame.setVisible(true);
}
 
 
 
public static void main(String[] args)
{
Suggestion newObject = new Suggestion();
 
newObject.launch();
}
}

Greetings,
Nepomuk

[brendanmcdonagh]

Thank you for that. I have succeeded now!

Am I being really stupid or is the following complex?:

When a textField.getText() is added to a map, when the program finishes running, that Map will go back to default won't it? What do programmers do to avoid this to make sure the amendment to the map is permanent?

[Nepomuk]

Thank you for that. I have succeeded now!

Am I being really stupid or is the following complex?:

When a textField.getText() is added to a map, when the program finishes running, that Map will go back to default won't it? What do programmers do to avoid this to make sure the amendment to the map is permanent?

What instance creates that map? How is it saved?

If you want some part of your program to change a map, that's no problem. The changes will continue to exist after that function has finished.
If the complete program is stopped any you want changes saved, you'll have to write a file to the hard drive. This howto explains the basics of reading and writing files in Java. The choice of format depends on what sort of information you're going to be saving.

Greetings,
Nepomuk