Java by API/javax.swing.table/Row Header

JTable with Row Header 1

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Color; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JViewport; import javax.swing.ScrollPaneConstants; import javax.swing.table.AbstractTableModel; import javax.swing.table.DefaultTableColumnModel; import javax.swing.table.TableColumn; import javax.swing.table.TableColumnModel; import javax.swing.table.TableModel; public class MainClass extends JFrame {

 public MainClass() {
   super("Row Header Test");
   setSize(300, 200);
   setDefaultCloseOperation(EXIT_ON_CLOSE);
   TableModel tm = new AbstractTableModel() {
     String data[] = { "", "a", "b", "c", "d", "e" };
     String headers[] = { "Row #", "Column 1", "Column 2", "Column 3", "Column 4", "Column 5" };
     public int getColumnCount() {
       return data.length;
     }
     public int getRowCount() {
       return 1000;
     }
     public String getColumnName(int col) {
       return headers[col];
     }
     public Object getValueAt(int row, int col) {
       return data[col] + row;
     }
   };
   TableColumnModel cm = new DefaultTableColumnModel() {
     boolean first = true;
     public void addColumn(TableColumn tc) {
       if (first) {
         first = false;
         return;
       }
       tc.setMinWidth(150);
       super.addColumn(tc);
     }
   };
   TableColumnModel rowHeaderModel = new DefaultTableColumnModel() {
     boolean first = true;
     public void addColumn(TableColumn tc) {
       if (first) {
         tc.setMaxWidth(tc.getPreferredWidth());
         super.addColumn(tc);
         first = false;
       }
     }
   };
   JTable jt = new JTable(tm, cm);
   JTable headerColumn = new JTable(tm, rowHeaderModel);
   jt.createDefaultColumnsFromModel();
   headerColumn.createDefaultColumnsFromModel();
   jt.setSelectionModel(headerColumn.getSelectionModel());
   headerColumn.setBackground(Color.lightGray);
   headerColumn.setColumnSelectionAllowed(false);
   headerColumn.setCellSelectionEnabled(false);
   JViewport jv = new JViewport();
   jv.setView(headerColumn);
   jv.setPreferredSize(headerColumn.getMaximumSize());
   jt.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
   JScrollPane jsp = new JScrollPane(jt);
   jsp.setRowHeader(jv);
   jsp.setCorner(ScrollPaneConstants.UPPER_LEFT_CORNER, headerColumn.getTableHeader());
   getContentPane().add(jsp, BorderLayout.CENTER);
 }
 public static void main(String args[]) {
   new MainClass().setVisible(true);
 }

}

      </source>