Bring window to input name in front

src/main/java/ClientHandler.java

@@ -1,8 +1,7 @@
+import javax.swing.*;
 import java.io.*;
 import java.net.Socket;
 
-import javax.swing.JOptionPane;
-
 public class ClientHandler implements Runnable {
   private ChatServer chatServer;
   private Socket connectionToClient;
@@ -15,7 +14,9 @@ public class ClientHandler implements Runnable {
   public ClientHandler(ChatServer chatServer, Socket connectionToClient) {
     this.chatServer = chatServer;
     this.connectionToClient = connectionToClient;
-    name = JOptionPane.showInputDialog("Benutzername für neuen Client vergeben");
+    final JDialog dialog = new JDialog();
+    dialog.setAlwaysOnTop(true);
+    name = JOptionPane.showInputDialog(dialog,"Benutzername für neuen Client vergeben");
 
     new Thread(this).start();} // Start a new thread for this client handler