Using a variable as a variable name?

Question

Hello,
I've been searching web long time and I cannot find it anywhere, can someone tell is that (topic) possible in Java?
I'd like to do the same thing like here: http://pl2.php.net/language.variables.variable
Best regards.

Answer 1

Or use a custom renderer to create a combo color chooser.import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class ComboColorChooser {
   void makeUI() {
      Object[] colors = {Color.RED, Color.BLUE, Color.GREEN};
      JComboBox comboBox = new JComboBox(colors);
      ColorComboRenderer renderer = new ColorComboRenderer();
      comboBox.setRenderer(renderer);
      JFrame frame = new JFrame("ComboColorChooser");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setSize(400, 400);
      frame.setLayout(new FlowLayout());
      frame.add(comboBox);
      frame.setLocationRelativeTo(null);
      frame.setVisible(true);
   public static void main(String[] args) {
      SwingUtilities.invokeLater(new Runnable() {
         @Override
         public void run() {
            new ComboColorChooser().makeUI();
   class ColorComboRenderer extends JLabel
           implements ListCellRenderer {
      final int w = 200;
      final int h = 20;
      public ColorComboRenderer() {
         setOpaque(true);
         setPreferredSize(new Dimension(w, h));
      @Override
      public Component getListCellRendererComponent(JList list, Object value,
              int index, boolean isSelected, boolean cellHasFocus) {
         setIcon(getIcon((Color) value));
         setBackground((Color) value);
         return this;
      private Icon getIcon(Color color) {
         BufferedImage image = new BufferedImage(w, h,
                 BufferedImage.TYPE_INT_RGB);
         Graphics g = image.getGraphics();
         g.setColor(color);
         g.fillRect(0, 0, w, h);
         return new ImageIcon(image);
}db