import javax.swing.*;
public class Jaotuspaneel{
  public static void main(String argumendid[]){
    JSplitPane paneel=new JSplitPane(
      JSplitPane.VERTICAL_SPLIT,
      new JButton("Ülemine"),
      new JToggleButton("Alumine")
    );
    JFrame f=new JFrame("Jagatud raam");
    f.getContentPane().add(paneel);
    f.setSize(200, 200);
    f.setVisible(true);
  }
}