Java Swing How to - Show a popup menu when a mouse cursor in a cell of JTable

Question

We would like to know how to show a popup menu when a mouse cursor in a cell of JTable.

Answer

import java.awt.Component;
//  w ww  .  j a v a 2s  . co  m
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;

public class Main {
  public static void main(String[] args) {
    JTable t = new JTable(new TimesTableModel());
    t.setDefaultRenderer(Object.class, new TimesTableRenderer());
    JOptionPane.showMessageDialog(null, t);
  }
}

class TimesTableRenderer extends DefaultTableCellRenderer {
  @Override
  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);
    JComponent jc = (JComponent) c;
    jc.setToolTipText((row + 1) + "x" + (column + 1) + "="
        + ((row + 1) * (column + 1)));
    return jc;
  }
}

class TimesTableModel extends DefaultTableModel {
  @Override
  public int getColumnCount() {
    return 7;
  }

  @Override
  public int getRowCount() {
    return 5;
  }

  @Override
  public Object getValueAt(int row, int column) {
    return new Integer((row + 1) * (column + 1));
  }
}