How do I use arrays in NetBeans?

[CollinRyans]

Hi, I am completely new to netbeans. I am normally used to working with JCreator and used to the line by line input/output interface. For a school project I have to make a GUI, and I chose to use NetBeans. However I am having trouble implementing the codes I already made with JCreator onto NetBeans with a GUI.

The code I used with JCreator is:

[Christopher Lam]

Hi,

There's no need to write you own sorting method, Arrays and Collections classes already provided. Also, in the GUI, I thought using a JList is more appropriate than a TextArea, so here is the code to do what you described but the way I organized the code and the naming convention is not the best, I whipped it up within a short time just to give you some idea. Note the code below should compile and run properly.

package sortnames;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import java.util.Collections;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.ListModel;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;

/**
*
* @author Christopher Lam
*/
public class Main extends WindowAdapter implements ActionListener
{
JTextField txtName = new JTextField(15);
JButton enterButt = new JButton("Enter");
JButton sortButt = new JButton("Sort");
JList nameList = new JList(new NameListModel());

public Main()
{
JFrame frame = new JFrame("Enter names");
frame.setBounds(10, 10, 450, 400);
frame.addWindowListener(this);
Container mainPane = frame.getContentPane();
mainPane.setLayout(new BorderLayout());
JPanel topPanel = new JPanel(new FlowLayout());
topPanel.add(txtName);
topPanel.add(enterButt);
topPanel.add(sortButt);
mainPane.add(topPanel, BorderLayout.NORTH);
mainPane.add(nameList, BorderLayout.CENTER);

NameListModel model = (NameListModel)nameList.getModel();

enterButt.addActionListener(this);
sortButt.addActionListener(this);

frame.setVisible(true);
}

@Override
public void windowClosing(WindowEvent e)
{
super.windowClosed(e);
e.getWindow().dispose();
}

/**
* @param args the command line arguments
*/
public static void main(String[] args)
{
// TODO code application logic here
new Main();
}

public void actionPerformed(ActionEvent e)
{
if (e.getSource().equals(sortButt))
{
NameListModel model = (NameListModel)nameList.getModel();
model.sort();
}
else if (e.getSource().equals(enterButt))
{
NameListModel model = (NameListModel)nameList.getModel();
model.addName(txtName.getText());
txtName.setText("");
txtName.requestFocus();
}
//throw new UnsupportedOperationException("Not supported yet.");
}
}

class NameListModel implements ListModel
{
ArrayList<String> array = new ArrayList<String>();
ListDataListener listener = null;

public NameListModel()
{
}

private void updateList()
{
if (listener != null)
{
listener.contentsChanged(new ListDataEvent(this,
ListDataEvent.CONTENTS_CHANGED, 0, array.size()-1));
}
}

public void addName(String name)
{
array.add(name);
updateList();
}

public void sort()
{
Collections.sort(array);
updateList();
}

public int getSize()
{
return array.size();
//throw new UnsupportedOperationException("Not supported yet.");
}

public Object getElementAt(int index)
{
return array.get(index);
//throw new UnsupportedOperationException("Not supported yet.");
}

public void addListDataListener(ListDataListener l)
{
//throw new UnsupportedOperationException("Not supported yet.");
listener = l;
}

public void removeListDataListener(ListDataListener l)
{
//throw new UnsupportedOperationException("Not supported yet.");
}
}

Regards,

Christopher Lam

On 13-Dec-2009, at 6:58 AM, CollinRyans wrote:

[neji]

searching for upgraded versions ?? Check http://www.trustdownload.com/Web-Authoring/Java-and-JavaScript-Editors/SortedArrayList.html
Thanks