import java.awt.Insets;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JToggleButton;
import javax.swing.JToolBar;
public class Main {
public static void main(String[] argv) throws Exception {
JToolBar toolbar = new JToolBar();
ImageIcon icon = new ImageIcon("icon.gif");
Action action = new AbstractAction("Button Label", icon) {
public void actionPerformed(ActionEvent evt) {
}
};
JButton c1 = new JButton(action);
c1.setText(null);
c1.setMargin(new Insets(0, 0, 0, 0));
toolbar.add(c1);
JToggleButton c2 = new JToggleButton(action);
c2.setText(null);
c2.setMargin(new Insets(0, 0, 0, 0));
toolbar.add(c2);
JComboBox c3 = new JComboBox(new String[] { "A", "B", "C" });
c3.setPrototypeDisplayValue("XXXXXXXX"); // Set a desired width
c3.setMaximumSize(c3.getMinimumSize());
toolbar.add(c3);
}
}