[SOLVED] 2 D Array and JComboBox on a JPanel

[crazydeo]

I don't know if I will be able to explain this well, but here it goes.

I havea 2 dimensional array with values in a Jpanel and I want to use a combobox instead of a JList to show the values in the array.

For example:
user chooses auto part number in combobox
3 textfields are updated with corresponding part numbers for generic brands.

Hopefully some one can help me out!!

[Eranga]

You try to get the array name on combo box, and corresponding values want to display on text fields. Is that right?

[crazydeo]

No, actually I have the ComboBox that is is being filled by the values from the array but I need the textfields to populate from the array as well and then correspond with the ComboBox.... When I pick a different value in the ComboBox the textfields should auto populate with the new values.

[Eranga]

Ok, why it's difficult. At the state change of the combobox, get the selected text. Using that I think you can find values which wants to add into text fields. Set text on text fields then.

[crazydeo]

Code:

public void itemStateChanged(ItemEvent evt)
	{
		plainWrapComboBox.???

[Eranga]

Code:

getSelectedItem();

Return an object there. You can cast it into string.

[crazydeo]

I think i'm lost

Code:

import java.text.*;
import javax.swing.*;

import java.awt.event.*;

public class PlainWrapParts extends JFrame implements ItemListener, ActionListener
{
	//create the main panel, radio buttons, and text fields for the panel
	JPanel mainPanel = new JPanel();

	String[][] partNumberString =
    {  {"PR214", "MR43T", "RBL8", "14K22"},
   	{"PR223", "R43", "RJ6", "14K24"},
   	{"PR224", "R43N", "RN4", "14K30"},
   	{"PR246", "R46N", "RN8", "14K32"},
   	{"PR247", "R46TS", "RBL17Y", "14K33"},
   	{"PR248", "R46TX", "RBL12-6", "14K35"},
   	{"PR324", "S46", "J11", "14K38"},
   	{"PR326", "SR46E", "XEJ8", "14K40"},
   	{"PR444", "47L", "H12", "14K44"}    };
    String [] brandString = {"Plain Wrap", "Brand A", "Brand C", "Brand X"};
    int counterInteger = 0;
    int plainWrapInteger [] = new int [14];
    String plainWrapString, brandAString, brandCString, brandXString, nameString;
	JComboBox plainWrapComboBox = new JComboBox(partNumberString[0]);
	JTextField brandATextField = new JTextField(5);
	JTextField brandCTextField = new JTextField(5);
	JTextField brandXTextField = new JTextField(5);
	JButton clearButton = new JButton("Clear Items");
	JButton summaryButton = new JButton("Summary of Sales");
	JTextField plainWrapAddTextField = new JTextField(5);
	JTextField brandAAddTextField = new JTextField(5);
	JTextField brandCAddTextField = new JTextField(5);
	JTextField brandXAddTextField = new JTextField(5);
	JButton addButton = new JButton("Add an item");
	JTextArea outputTextArea = new JTextArea(20,30);
	JScrollPane mainScrollPane = new JScrollPane(outputTextArea);


	public static void main(String[] args)
	{
		// Create an object of the class
		PlainWrapParts myPartsStore = new PlainWrapParts();
		myPartsStore.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

	}
	
	public PlainWrapParts()
	{
		//setting title, size of the designFrame
		designFrame();
		add(mainPanel);
		setTitle("Plain Wrap Auto");
		setSize(500,600);
		setVisible(true);
	}
	
	public void designFrame()
	{
		//add items to the panels
		
		mainPanel.add(new JLabel("Plain Wrap"));
		mainPanel.add(plainWrapComboBox);
		mainPanel.add(new JLabel("Brand A"));
		mainPanel.add(brandATextField);
		mainPanel.add(new JLabel("Brand C"));
		mainPanel.add(brandCTextField);
		mainPanel.add(new JLabel("Brand X"));
		mainPanel.add(brandXTextField);
		mainPanel.add(new JLabel("Plain Wrap"));
		mainPanel.add(plainWrapAddTextField);
		mainPanel.add(new JLabel("Brand A"));
		mainPanel.add(brandAAddTextField);
		mainPanel.add(new JLabel("Brand C"));
		mainPanel.add(brandCAddTextField);
		mainPanel.add(new JLabel("Brand X"));
		mainPanel.add(brandXAddTextField);
		mainPanel.add(addButton);
		mainPanel.add(clearButton);
		mainPanel.add(mainScrollPane);
		
		brandXTextField.addActionListener(this);
		brandXAddTextField.addActionListener(this);
		plainWrapComboBox.addItemListener(this);
		clearButton.addActionListener(this);
		addButton.addActionListener(this);
	}
	
	//Different actions performed when the buttons are pushed
	public void itemStateChanged(ItemEvent evt)
	{
		
		String partNumberString = plainWrapComboBox.getSelectedItem();
		plainWrapTextField = 
	}
	
	public void actionPerformed(ActionEvent evt)
	{		
		Object sourceObject = evt.getSource();
		
		//if purchase button pushed everything sent to total class for calculation
		if(sourceObject == addButton)
		{
			getInput();
			add();
		}
		
		//if clear button pushed everything thing is cleared
		else if(sourceObject == clearButton)
		{
			clear();
		}
	}
	
	 public void getInput()
	    {
	         //validate entry
	 
	        try
	        {
	            if((!(plainWrapAddTextField.getText()).equals("")))
	            {
	                 nameString = plainWrapAddTextField.getText();
	 
	                if((!(brandAAddTextField.getText()).equals("")))
	                {
	                         nameString = brandAAddTextField.getText();
	                        if((!(brandCAddTextField.getText()).equals("")))
	                        {
	                                nameString = brandCAddTextField.getText(); 
	                                if((!(brandXAddTextField.getText()).equals("")))
	                                {
	                                        nameString = brandXAddTextField.getText(); 
	 
	                                try 
	                                {
	 
	                                    add();
	                                }
	 
	                                catch (NullPointerException e)
	                                {
	                                	JOptionPane.showMessageDialog(null, "invalid");
	                    	            brandATextField.selectAll();
	                    	            brandATextField.requestFocus();
	                                }
	                                }
	                                else
	                                {    JOptionPane.showMessageDialog(null, "Enter Brand X");
	                                brandXAddTextField.selectAll();
	                                brandXAddTextField.requestFocus();
	                        }}
	                        else
	                        {    JOptionPane.showMessageDialog(null, "Enter Brand C");
	                        brandCAddTextField.selectAll();
	                        brandCAddTextField.requestFocus();
	                }}
	                else
	                {
	                        JOptionPane.showMessageDialog(null, "Enter Brand A");
	                        brandAAddTextField.selectAll();
	                        brandAAddTextField.requestFocus();
	                }
	            }
	 
	            else
	            {
	                JOptionPane.showMessageDialog(null, "Enter Plain Wrap");
	                plainWrapAddTextField.selectAll();
	                plainWrapAddTextField.requestFocus();
	            }
	        }
	        catch(NullPointerException e)
	        {
	            JOptionPane.showMessageDialog(null, "invalid");
	            brandATextField.selectAll();
	            brandATextField.requestFocus();
	 
	        }
	    }
	 
	public void add()
	{
		boolean done = false;
		int arrayCount = plainWrapComboBox.getItemCount() - 1;
		for (int i = 0; i <= arrayCount; i++)
		if(plainWrapString.equals(partNumberString[0][i]))
		{
		done = true;			
		break;
		}
		if(done)
		{
			JOptionPane.showMessageDialog(null, "Duplicate part number!");
		}
		else if(plainWrapString.length() != 0 && brandAString.length() != 0 
		&& brandCString.length() != 0 && brandXString.length() != 0)
		{
		plainWrapAddTextField.setText(plainWrapString);
		brandAAddTextField.setText(brandAString);
		brandCAddTextField.setText(brandCString);
		brandXAddTextField.setText(brandXString);
		}
	}
	
	public boolean checkInput(String userInputString)
	{
		boolean foundBoolean = false;
		int indexInteger = 0;
		String inputString = new String();
		
		while(!foundBoolean && indexInteger < plainWrapComboBox.getItemCount())
		{
			inputString = (String) plainWrapComboBox.getItemAt(indexInteger);
			if(userInputString.equalsIgnoreCase(inputString))
			{
				foundBoolean = true;
			}
			else
			{
				indexInteger++;
			}
		}
		return foundBoolean;
	}
	
	public void displayPlainWrapFound(boolean partsBoolean, String inputString)
	{
		if(partsBoolean)
		{
			JOptionPane.showMessageDialog(null,"This part is already in the list");
			plainWrapAddTextField.selectAll();
			plainWrapAddTextField.requestFocus();
		}
		else
		{
			plainWrapComboBox.addItem(inputString);
			JOptionPane.showMessageDialog(null,"This part is added to the list");
			plainWrapAddTextField.setText("");
		}
	}
	public void clear()
	{
		plainWrapAddTextField.setText("");
		brandAAddTextField.setText("");
		brandCAddTextField.setText("");
		brandXAddTextField.setText("");
		outputTextArea.setText("");
		plainWrapComboBox.requestFocus();
	}
	
}

[Eranga]

My friend I told this.

getSelectedItem() return an object. So you have to think about that. Like this, much simple.

Code:

	//Different actions performed when the buttons are pushed
	public void itemStateChanged(ItemEvent evt)
	{
		String ss = (String) plainWrapComboBox.getSelectedItem();
		//String partNumberString = plainWrapComboBox.getSelectedItem();
		//plainWrapTextField = 
	}

Try and let me know what happened.