Re: How to color a cell in a JTable

Discussion in 'Java' started by clusardi2k, Jul 31, 2012.

  1. clusardi2k

    clusardi2k Guest

    To: clusardi2k
    From: "clusardi2k" <clusardi2k@1:261/38.remove-dpk-this>

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    To: clusardi2k
    From:

    The below project will paint all cells red!

    //-------------- PROJECT 2 ---------------------
    /*
    * To change this template, choose Tools | Templates
    * and open the template in the editor.
    */
    package javaapplication2;

    import java.awt.BorderLayout;
    import java.awt.EventQueue;
    import javax.swing.*;
    import javax.swing.table.DefaultTableModel; import
    javax.swing.table.TableModel; import javax.swing.table.TableRowSorter;

    class CustomRenderer extends DefaultTableCellRenderer {
    public Component getTableCellRendererComponent(JTable table, Object value,
    boolean isSelected, boolean hasFocus, int row, int column)
    {
    Component c = super.getTableCellRendererComponent(table, value,
    isSelected, hasFocus, row, column);
    c.setBackground(new java.awt.Color(255, 72, 72));
    return c;
    }
    }

    public class testtable extends javax.swing.JFrame {

    /**
    * Creates new form testtable
    */
    public testtable() {
    initComponents();

    Runnable runner = new Runnable() {
    public void run() {

    Object rows[][] = {
    {"AMZN", "Amazon", 41.28},
    {"EBAY", "eBay", 41.57},
    {"GOOG", "Google", 388.33},
    {"MSFT", "Microsoft", 26.56},
    {"NOK", "Nokia Corp", 17.13},
    {"ORCL", "Oracle Corp.", 12.52},
    {"SUNW", "Sun Microsystems", 3.86},
    {"TWX", "Time Warner", 17.66},
    {"VOD", "Vodafone Group", 26.02},
    {"YHOO", "Yahoo!", 37.69}
    };
    String columns[] = {"Symbol", "Name", "Price"};
    TableModel model =
    new DefaultTableModel(rows, columns) {
    public Class getColumnClass(int column) {
    Class returnValue;
    if ((column >= 0) && (column < getColumnCount())) {
    returnValue = getValueAt(0, column).getClass();
    } else {
    returnValue = Object.class;
    }
    return returnValue;
    }
    };

    jTable1.setDefaultRenderer(String.class, new CustomRenderer());

    jTable1.setModel(model);

    jTable1.setRowSorter(sorter); }
    };
    EventQueue.invokeLater(runner);
    }
    /**
    * This method is called from within the constructor to initialize the
    form.
    * WARNING: Do NOT modify this code. The content of this method is always
    * regenerated by the Form Editor.
    */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

    jScrollPane1 = new javax.swing.JScrollPane();
    jTable1 = new javax.swing.JTable();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

    jTable1.setModel(new javax.swing.table.DefaultTableModel(
    new Object [][] {
    {null, null, null, null},
    {null, null, null, null},
    {null, null, null, null},
    {null, null, null, null}
    },
    new String [] {
    "Title 1", "Title 2", "Title 3", "Title 4"
    }
    ));
    jScrollPane1.setViewportView(jTable1);

    javax.swing.GroupLayout layout = new
    javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
    layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN
    G)
    .addGroup(layout.createSequentialGroup()
    .addContainerGap()
    .addComponent(jScrollPane1,
    javax.swing.GroupLayout.PREFERRED_SIZE, 375,
    javax.swing.GroupLayout.PREFERRED_SIZE)
    .addContainerGap(13, Short.MAX_VALUE))
    );
    layout.setVerticalGroup(
    layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN
    G)
    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,
    layout.createSequentialGroup()
    .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE,
    Short.MAX_VALUE)
    .addComponent(jScrollPane1,
    javax.swing.GroupLayout.PREFERRED_SIZE, 275,
    javax.swing.GroupLayout.PREFERRED_SIZE)
    .addContainerGap())
    );

    pack();
    }// </editor-fold>

    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
    /*
    * Set the Nimbus look and feel
    */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting
    code (optional) ">
    /*
    * If Nimbus (introduced in Java SE 6) is not available, stay with the
    * default look and feel. For details see
    * http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.
    html
    */
    try {
    for (javax.swing.UIManager.LookAndFeelInfo info :
    javax.swing.UIManager.getInstalledLookAndFeels()) {
    if ("Nimbus".equals(info.getName())) {
    javax.swing.UIManager.setLookAndFeel(info.getClassName());
    break;
    }
    }
    } catch (ClassNotFoundException ex) {
    java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
    ava.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
    java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
    ava.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
    java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
    ava.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
    java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
    ava.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    /*
    * Create and display the form
    */
    java.awt.EventQueue.invokeLater(new Runnable() {

    public void run() {
    new testtable().setVisible(true);
    }
    });
    }
    // Variables declaration - do not modify
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    // End of variables declaration
    }

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    clusardi2k, Jul 31, 2012
    #1
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