Array problems

[Hosticus]

Hi,

I can't resolve "newWord()" ..

Help me please !!!

//Start.java
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class Start {
private static JFrame mainFrame;

public static void main(String[] args) {
mainFrame = new JFrame("WoordenBoek 1.0");
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_ CLOSE);
View view = new View();
mainFrame.getContentPane().add(view);
mainFrame.setSize(400, 200);
mainFrame.setResizable(false);
mainFrame.setVisible(true);
}
}

class View extends JPanel implements ActionListener {
private boolean saved = true;

private int Nummer = 0;
private String[]D;
private String[]Dat = {"","","",""};
private final String[]Dat0 = {"Vanessa Johanna Hantson","Vriendin","Personen","Leer haar kennen en oordeel dan!"};
private final String[]Dat1 = {"Ali Isin","Vriend","Personen","Leer hem kennen en oordeel dan!"};
private final String[]Dat2 = {"Jochen Hantson","Broertje","Personen","Leer hem kennen en oordeel dan!"};
private final String[]Dat3 = {"Deniz Isin","Broertje","Personen","Leer hem kennen en oordeel dan!"};
private String[][]Data = {Dat0, Dat1, Dat2, Dat3};

private JPanel controlPanel = new JPanel();
private JPanel viewPanel = new JPanel();
private JPanel labelPanel = new JPanel();
private JPanel fieldPanel = new JPanel();

private final JButton prevButton = new JButton(" prev ");
private final JButton nextButton = new JButton(" next ");
private final JButton newButton = new JButton(" new ");
private final JButton saveButton = new JButton(" save ");
private final JButton exitButton = new JButton(" exit ");

private final String wordString = "WORD: ";
private final String groupString = "GROUP: ";
private final String categoryString = "CATEGORY: ";
private final String descriptionString = "DESCRIPTION: ";

private final JLabel wordLabel = new JLabel(wordString);
private final JLabel groupLabel = new JLabel(groupString);
private final JLabel categoryLabel = new JLabel(categoryString);
private final JLabel descriptionLabel = new JLabel(descriptionString);

private JTextField wordText = new JTextField(20);
private JTextField groupText = new JTextField(20);
private JTextField categoryText = new JTextField(20);
private JTextField descriptionText = new JTextField(60);

View() {
D = Dat0;

labelPanel.setLayout(new GridLayout(0, 1));
labelPanel.add(wordLabel);
labelPanel.add(groupLabel);
labelPanel.add(categoryLabel);
labelPanel.add(descriptionLabel);

fieldPanel.setLayout(new GridLayout(0, 1));
wordText.setText(D[0]);
fieldPanel.add(wordText);
groupText.setText(D[1]);
fieldPanel.add(groupText);
categoryText.setText(D[2]);
fieldPanel.add(categoryText);
descriptionText.setText(D[3]);
fieldPanel.add(descriptionText);

viewPanel.setLayout(new BoxLayout(viewPanel, BoxLayout.X_AXIS));
viewPanel.add(labelPanel);
viewPanel.add(fieldPanel);

controlPanel.setLayout(new BoxLayout(controlPanel, BoxLayout.X_AXIS));
controlPanel.add(prevButton);
prevButton.addActionListener(this);
controlPanel.add(nextButton);
nextButton.addActionListener(this);
controlPanel.add(newButton);
newButton.addActionListener(this);
controlPanel.add(saveButton);
saveButton.addActionListener(this);
controlPanel.add(exitButton);
exitButton.addActionListener(this);

setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
add(viewPanel);
add(controlPanel);
}

public void actionPerformed(ActionEvent e) {
if(e.getSource() == prevButton) prevWord();
if(e.getSource() == nextButton) nextWord();
if(e.getSource() == newButton) newWord();
if(e.getSource() == saveButton) saveWord();
if(e.getSource() == exitButton) exitWB();
}

private void exitWB() { if(saved)System.exit(0); else warnExit(); }

private void newWord() {
Nummer = Data.length-1;
Data[Nummer] = Dat;
renew(Nummer);
}

private void nextWord() {
if((Data.length-2) >= Nummer) {
Nummer++;
renew(Nummer);
}
}

private void prevWord() {
if(1 <= Nummer) {
Nummer--;
renew(Nummer);
}
}

private void saveWord() {}

private void warnExit() {
JDialog JD = new JDialog();
JD.setAlwaysOnTop(true);
JD.setSize(300, 100);
JD.add(new JLabel("PLEASE SAVE BEFORE QUITING!"));
JD.setVisible(true);
}

private void renew(int nummer) {
D = Data[nummer];
wordText.setText(D[0]);
groupText.setText(D[1]);
categoryText.setText(D[2]);
descriptionText.setText(D[3]);
repaint();
}
}
//END.

Thanks!

[DarrylBurke]

You don't seriously expect to be able to invoke a method that doesn't exist? Start learning Java here:
The Java™ Tutorials

db

[Fubarable]

I would not use a 2D array of String here, and in fact I wouldn't use an Array at all to hold the data. Better to create a class, say called Dat that has String fields for word, group, category, and description. I'd then use an ArrayList<Dat> as my data structure. Then when the user enters their data and presses Save, it's easy to create a new Dat object and place it into the ArrayList. Best of luck.