package volledig; import javax.swing.*; @SuppressWarnings("serial") public class Schuifpuzzel extends JFrame { JPanel paneel; public Schuifpuzzel() { super("Schuifpuzzel"); setSize(500,500); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); paneel = new Puzzelpaneel(); add(paneel); setVisible(true); } public static void main(String[] args) { new Schuifpuzzel(); } }