import javax.swing.*;
import java.awt.*;
public class swi1{
private JFrame frame;
public swi1(){
frame = new JFrame("Gui");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);
frame.setTitle("frame");
frame.setBounds(400,400,500,500);
frame.setLayout(null);
JSplitPane myspil = new...