Java JTable

Java JTable Example

Java JTable class is used to display data in a tabular form.JTable has rows and columns.

Java JTable used constructors

• JTable()-creates table with empty cells.
• JTable(Object [] [] rows,Object [] columns)-creates a table with data.

Java JTable Example:

[

import javax.swing.JTable;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
public class JTableExample extends JFrame{
   JTableExample()
   {
   super("JTable Example");
   
   
   String col[]={"ID","Name","Age","Salary"};
   
   String data [][]=
   {
       {"123","Eric","26","20000"},
   {"124","Kane","27","25600"},
      {"125","Jai","30","780000"},
   {"126","Sachin","34","700000"},
            {"127","Amit","18","670000"}
   }
   ;
   
   JTable table=new JTable(data,col);
   
     table.setBounds(30,40,200,300); 
   JScrollPane scroll=new JScrollPane(table);
   
 add(scroll);
   
      setSize(400,400);
  
   setLocationRelativeTo(null);
  setDefaultCloseOperation(EXIT_ON_CLOSE);
  setVisible(true);
   }
   
   public static void main(String args[])
   {
   new JTableExample();
   }
}

]

Java JTable Example with ListeSelectionListener

[

import javax.swing.JTable;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class JTableExample extends JFrame{
    JTableExample()
    {
        super("JTable Example");


        String col[]={"ID","Name","Age","Salary"};

        String data [][]=
                {
                        {"123","Eric","26","20000"},
                        {"124","Kane","27","25600"},
                        {"125","Jai","30","780000"},
                        {"126","Sachin","34","700000"},
                        {"127","Amit","18","670000"}
                }
                ;

        JTable table=new JTable(data,col);
        table.setCellSelectionEnabled(true);
        ListSelectionModel select=table.getSelectionModel();
        select.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        select.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(ListSelectionEvent e) {
                String Data = null;
                int[] row = table.getSelectedRows();
                int[] columns = table.getSelectedColumns();
                for (int i = 0; i < row.length; i++) {
                    for (int j = 0; j < columns.length; j++) {
                        Data = (String) table.getValueAt(row[i], columns[j]);
                    } }
                System.out.println("Table element selected is: " + Data);
            }
        });
        table.setBounds(30,40,200,300);
        JScrollPane scroll=new JScrollPane(table);

        add(scroll);

        setSize(400,400);

        setLocationRelativeTo(null);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setVisible(true);
    }

    public static void main(String args[])
    {
        new JTableExample();
    }
}

]

Output