Thread: Help Please! :(

Why does not showing the object?

This my project. I would like to show the object using text file and store in JTable per row and line by line and split it to "-".

here the example of textfile or database.txt:

07-12345-Wilson-Dacles-T.-February 1, 1995-male-lordwils02@gmail.com-cuasay st.
21-1234-Wilson-Dacles-T.-February 1, 1995-male-lordwils02@gmail.com-cuasay st.

Then, here is the output of my JTable like that I said the object is does'nt show:
sasasasaaaaa.jpg

Sorry for my grammar.! I'm veteran for filipino language.. I hope you help me!!

try{
		BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File("Database.txt"))));
		String line = "";
		int width = 0, height = 0;
 
		while((line = br.readLine())!=null){
 
		if(width == 0){
 
		String data[] = line.split("-");
		width = data.length;
 
			}
		height++;
 
		String matrix[][] = new String[height][width];
		model = new DefaultTableModel(matrix, col);
		table = new JTable(model){
		public boolean isCellEditable(int row, int column){
		return false;
		}};
		}
	}catch (IOException ex){
		     ex.printStackTrace();
}

Well during your while loop you really aren't storing any data at all. You create the 2D String array afterwards, but all of it's contents are null. You never actually get any data from the input file

Like this, and i would like to automatic display object on text file and put the jtable, but doesn't show
aaaaaaaaaaaa.jpg

Here is my full code:

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.table.*;
import java.io.*;
import java.util.*;
 
public class Administrator extends JFrame {
 
		private String col []= {"Account No.","PinCode","First Name",
		"Last Name", "MI","BirthDate","Sex","E-mail","Address"};
		private JScrollPane scroll;
		private JTable table;
		private DefaultTableModel model;
 
     public Administrator(){
		//ImageIcon bcr = new ImageIcon(getClass().getResource("/images/bcr.jpg"));
		final JButton back = new JButton("back");
		back.setLocation(20,480);
		back.setSize(70,30);
		back.setPreferredSize(new Dimension(90,30));
		back.addActionListener(new ActionListener(){
		public void actionPerformed(ActionEvent e){
			dispose();
			}
		}
		);
		try{
 
			BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File("Database.txt"))));
 
			String line = "";
 
			int width = 0, height = 0;
 
			while((line = br.readLine())!=null){
 
			if(width == 0){
 
			String data[] = line.split("-");
			width = data.length;
 
			}
			height++;
 
			String matrix[][] = new String[height][width];
			model = new DefaultTableModel(matrix, col);
			table = new JTable(model){
			public boolean isCellEditable(int row, int column){
			return false;
				}
			};
		}
		}
		catch (IOException ex){
		ex.printStackTrace();
		}
 
		DefaultTableCellRenderer cent = new DefaultTableCellRenderer();
		cent.setHorizontalAlignment( JLabel.CENTER );
		table.getColumnModel().getColumn(0).setCellRenderer(cent);
		table.getColumnModel().getColumn(1).setCellRenderer(cent);
		table.getColumnModel().getColumn(2).setCellRenderer(cent);
		table.getColumnModel().getColumn(3).setCellRenderer(cent);
		table.getColumnModel().getColumn(4).setCellRenderer(cent);
		table.getColumnModel().getColumn(5).setCellRenderer(cent);
		table.getColumnModel().getColumn(6).setCellRenderer(cent);
		table.getColumnModel().getColumn(7).setCellRenderer(cent);
		table.getColumnModel().getColumn(0).setPreferredWidth(100);
		table.getColumnModel().getColumn(1).setPreferredWidth(100);
		table.getColumnModel().getColumn(2).setPreferredWidth(100);
		table.getColumnModel().getColumn(3).setPreferredWidth(100);
		table.getColumnModel().getColumn(4).setPreferredWidth(50);
		table.getColumnModel().getColumn(5).setPreferredWidth(100);
		table.getColumnModel().getColumn(6).setPreferredWidth(50);
		table.getColumnModel().getColumn(7).setPreferredWidth(120);
 
		scroll = new JScrollPane(table);
		scroll.setLocation(20, 320);
		scroll.setSize(750,150);
 
		Container pane = getContentPane();
		pane.setLayout(null);
		pane.add(back);
		pane.add(scroll);
 
		/*setIconImage(new ImageIcon("/images/icon.jpg").getImage());
		setLayout(new BorderLayout());
		JLabel www = new JLabel(new ImageIcon(getClass().getResource("/images/admin.jpg")));
		add(www);*/
		setDefaultCloseOperation(DISPOSE_ON_CLOSE);
		setTitle("Account Profile");
		setSize(800,550);
		setResizable(false);
		setVisible(true);
		setLocation(110, 30);
     }
     public static void main(String[]args){
     	new Administrator();
     }
}

Can you give me some sample or simple code sir Parranoia? sorry for the disturbance . I really really hard to forget.. cause I am the beginner..

so what should I do Mr.Norm ?

ok tnx ..

--- Update ---

Wait MR. Norm ,, how can i do for using 2d array ?

Mr. Norm:

Actually it works but the first row only ..How can i loop this height or other row.?
here is the image of the result:
nnnaaaannnaa.jpg

here is my code:

try{
 
			BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File("Database.txt"))));
 
			String line = "";
			int j = 0;
 
			line = br.readLine();
			String data[] = line.split("\n");
 
			String matrix[][] = new String[data.length][];
 
			for(String row: data){
				matrix[j++] = row.split("-");
			}
 
			model = new DefaultTableModel(matrix, col);
			table = new JTable(model){
			public boolean isCellEditable(int row, int column){
			return false;
				}
			};
 
		}
		catch (IOException ex){
		ex.printStackTrace();
		}

can you please help me ..

can you edit my code ?