now list all the files, download button just display on console the file ou want to download

src/gui/ArgumentsGen.java

@@ -7,6 +7,9 @@ package gui;
  * and open the template in the editor.
  */
 
+ import javax.swing.JFrame;
+ import javax.swing.SwingUtilities;
+
 /**
 * @author	Louis Royer
 * @author	Flavien Haas
@@ -174,6 +177,8 @@ public class ArgumentsGen extends javax.swing.JPanel {
 				int portTracker = Integer.parseInt(portTrackerStr);
 				ClientP2Pgui c = new ClientP2Pgui(hostnameServer, portServer, hostnameTracker, portTracker, protocolClient);
 				c.connect();
+				JFrame topFrame = (JFrame) SwingUtilities.getWindowAncestor(this);
+				topFrame.dispose();
     }
 
 }

src/gui/ClientInterfaceGUI.java

@@ -60,9 +60,17 @@ public class ClientInterfaceGUI extends ClientInterface {
 				 int optionSearch = 0;
 				 String searchInput = "";
 				 String[] list = clientManagement.listDirectory();
+				 System.out.println("running ClientInterfaceGUI and creating window");
+				 for(String listItem: list){
+					 System.out.println(listItem);
+				 }
 				 JFrame win = new JFrame();
-				 win.setVisible(true);
+				 win.setTitle("Client");
+				 win.setSize(550, 250);
+				 win.setLocationRelativeTo(null);
+				 win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 				 win.add(new DownloadSelectionGen(list, clientManagement, loggerC));
+				 win.setVisible(true);
 			 } catch (EmptyDirectory e) {
 					writeLog("Server has no file in directory", LogLevel.Error);
 				}