Why is my JTable not showing up?

Question

My JTable is not showing up. I don't have a clue why. maybe you can help me. I have a Window Class which has a right panel and the right panel should show a table with model data. I have used dummy data to start off with such as Month and Days.

Here is the Right Panel Class

import model.*;


import java.awt.*;
import java.awt.event.*;
//import java.text.*;
import javax.swing.*;


public class RightPanel extends JPanel implements View
{
    private TablePanel songsnartists = new TablePanel();
    Shop shop;

    public RightPanel(Shop ourShop)
    {   
        shop = ourShop;
        setup();
        build();
        setVisible(true);
    }

    private void setup()
    {   
        setPreferredSize(new Dimension(300, 300));
        setLayout(new GridLayout(3,2));
        setBorder(BorderFactory.createLineBorder(Color.blue));
    }

    private void build()
    { 
        add(songsnartists);
    }

    public void update()
    {}
}

/* simple enough so far just trying to add the table panel to my right panel */

Here is the TablePanel class that I created. It inherits JTable and uses a private class MyTableModel which inherits AbstractTableModel in order for me to make an uneditable table.

import javax.swing.*;
import javax.swing.table.*;


public class TablePanel extends JTable
{
    //private int ROWS = 3;
    //private int COLUMNS = 2;
    private final String [][] data = {{"Jan", "31"}, {"Feb","28"},{"Mar","31"}};
    private final String[] headers = {"Month", "Days"};
    JTable table;


    public TablePanel()
    {
        table = new JTable(new MyTableModel(data, headers));
        JTableHeader header = table.getTableHeader();
        //header.setBackground(Color.blue);
        setVisible(true);
    }

    private class MyTableModel extends AbstractTableModel
    {
        private String[] columnNames = {"Month", "Days"};
        private String[][] data = {{"Jan", "31"}, {"Feb","28"},{"Mar","31"}};

        public MyTableModel(String [][] data, String [] header)
        {
            int rows, cols, rowCounter, colCounter;

            rows = getRowCount();
            cols = getColumnCount();

            for (rowCounter=0; rowCounter < rows; rowCounter++)
                {
                    for (colCounter=0; colCounter < cols; colCounter++)
                        {
                            setValueAt(data[rowCounter][colCounter],rowCounter,colCounter);
                        }
                }           
        }


        public int getColumnCount()
        {
            return columnNames.length;
        }

        public int getRowCount()
        {
            return data.length;
        }

        public String getColumnName(int col)
        {
            return columnNames[col];
        }

        public Object getValueAt(int row, int col)
        {
            return data[row][col];
        }

        public Class getColumnClass(int c) 
        {
            return getValueAt(0, c).getClass();
        }

        public boolean isCellEditable(int row, int col)
        {
            return false;
        }
    }
}

As you can see the abstract methods are overridden in the private class. Can anyone help me to show me why my JTable is not showing up?

Why is my JTable not showing up?

Answers (1)

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