Java by API/javax.swing.table/TableModel

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TableModel: addTableModelListener(TableModelListener l)

   <source lang="java">
 

import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.event.TableModelEvent; import javax.swing.event.TableModelListener; public class Main {

 public static void main(String args[]) {
   final Object rowData[][] = { { "1", "one", "I" }, { "2", "two", "II" }, { "3", "three", "III" } };
   final String columnNames[] = { "#", "English", "Roman" };
   final JTable table = new JTable(rowData, columnNames);
   JScrollPane scrollPane = new JScrollPane(table);
   table.getModel().addTableModelListener(new TableModelListener() {
     public void tableChanged(TableModelEvent e) {
        System.out.println(e);
     }
   });
   table.setValueAt("",0,0);
   JFrame frame = new JFrame("Resizing Table");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.add(scrollPane, BorderLayout.CENTER);
   frame.setSize(300, 150);
   frame.setVisible(true);
 }

}


 </source>
   
  
 
  



TableModel: getColumnName(int columnIndex)

   <source lang="java">

import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableCellRenderer; import javax.swing.table.TableCellRenderer; import javax.swing.table.TableColumn; import javax.swing.table.TableColumnModel; public class MainClass {

 public static void main(String args[]) {
   String rows[][] = { { "A", "a" }, { "B", "b" }, { "E", "e" } };
   String headers[] = { "Upper", "Lower" };
   
   JFrame frame = new JFrame("Tooltip Sample");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   
   JTable table = new JTable(rows, headers);
   JLabel headerRenderer = new DefaultTableCellRenderer();
   String columnName = table.getModel().getColumnName(0);
   headerRenderer.setText(columnName);
   headerRenderer.setToolTipText("Wave");
   
   TableColumnModel columnModel = table.getColumnModel();
   TableColumn column = columnModel.getColumn(0);
   column.setHeaderRenderer((TableCellRenderer) headerRenderer);
   JScrollPane scrollPane = new JScrollPane(table);
   frame.add(scrollPane, BorderLayout.CENTER);
   frame.setSize(300, 150);
   frame.setVisible(true);
 }

}


 </source>