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Code for:	[ Java ] colors for alternate rows of jtable

Code License:	The BSD License

			  ************************** Zybocodes ******************************
Code For    : colors for alternate rows of jtable
Contributor : James
Ref link    : www.megawaretech.com
For this and other codes/logic under any technology visit:          
http://zybocodes.megawaretech.com                                   
********************************************************************


import java.awt.Color;
import java.awt.Component;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;

import javax.swing.*;  

/**
 *
 * @author sandeep
 */
class AlternateTableRowColorRenderer  extends DefaultTableCellRenderer {  
       
    Color currColor=Color.white;
    
    public AlternateTableRowColorRenderer() {  
        setOpaque(true);  
    }  

    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, 		boolean hasFocus, int row, int column) {     
       
        if(row%2==0) {                            
            currColor=Color.white;
        }    
        else {
            currColor=new Color(222,222,255);                
        }                            
        if(isSelected) {
            super.setForeground(table.getSelectionForeground());
            super.setBackground(table.getSelectionBackground());
        } else {
            super.setForeground(Color.black);   
            super.setBackground(currColor);
        }                     	
        setFont(table.getFont());                                
        setValue(value);
        return this;  
    }  
}   

 
   
public class TableRowRendererTest extends JFrame{  
   
   String[][] data = { {"0","0","5","1","0","12"}, {"5","0","2","8","0","0"}, 
   {"50","5","0","8","0","0"}, {"8","0","0","0","5","0"}, {"0","0","8","9","0","10"} };  

   Object[] fields = {"aaa", "bbb", "ccc", "ddd", "eee", "fff"};  

    public TableRowRendererTest() {  
        setSize(500,135);  
        setDefaultCloseOperation(EXIT_ON_CLOSE);  
        setLocation(200,200);  

        DefaultTableModel myModel = new DefaultTableModel(data, fields);  
        JTable myTable = new JTable(myModel);  
        myTable.setDefaultRenderer(Object.class, new AlternateTableRowColorRenderer());  
        /*
         * **** If for any reasons, the color does not work for the float or other numreic values of the field,
         * **** Use the code below seperately for each data type
         * myTable.setDefaultRenderer(Integer.class,new AlternateTableRowColorRenderer()); // for integer field
         * myTable.setDefaultRenderer(Float.class,new AlternateTableRowColorRenderer()); // for float field
         * myTable.setDefaultRenderer(BigDecimal.class,new AlternateTableRowColorRenderer()); // for Bigdecimal field
         *
         * **** and so on for the datatypes ****
         */
        JScrollPane x = new JScrollPane(myTable);  
        getContentPane().add(x);  
        show();  
    }  

    public static void main(String args[]) {  
       TableRowRendererTest test = new TableRowRendererTest();  
    }  
}

Code Description:

The class AlternateTableRowColorRenderer overrides the getTableCellRenderer function.
It alternates the color and sets it to the row. To use it, create objet of the class and set it as the property 
setDefaultRenderer(Object.class,object)

Further Reference Link:

www.megawaretech.com

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