diff --git a/src/gui/Parameters.java b/src/gui/Parameters.java
index b148bfa..eff88e8 100644
--- a/src/gui/Parameters.java
+++ b/src/gui/Parameters.java
@@ -1,7 +1,13 @@
 package gui;
 
-import javax.swing.*;
-import java.awt.*;
+import javax.swing.JPanel;
+import javax.swing.JLabel;
+import javax.swing.JButton;
+import javax.swing.JTextField;
+import javax.swing.JComboBox;
+import java.awt.BorderLayout;
+import java.awt.FlowLayout;
+import java.awt.GridLayout;
 
 public class Parameters extends JPanel{
 
@@ -11,12 +17,11 @@ public class Parameters extends JPanel{
     FlowLayout layout = new FlowLayout();
     JPanel p2 = new JPanel();
     p2.setLayout(layout);
-    Object[] elements = new Object[]{"TCP", "UDP"};
-  //  JSplitPane split;
+    String[] elements = {"TCP", "UDP"};
     JLabel label1, label2, label3, label4, label5;
     JTextField field1, field2, field3, field4;
-    JComboBox protocolSelector;
     JButton connectButton;
+    JComboBox<String> protocolSelector = new JComboBox<>(elements);
     label1 = new JLabel("Server hostname: ");
     label2 = new JLabel("Server port: ");
     label3 = new JLabel("Tracker hostname: ");
@@ -26,7 +31,6 @@ public class Parameters extends JPanel{
     field2 = new JTextField(20);
     field3 = new JTextField(20);
     field4 = new JTextField(20);
-    protocolSelector = new JComboBox(elements);
     connectButton = new JButton("Connect");
     p1.add(label1);
     p1.add(field1);
@@ -39,8 +43,6 @@ public class Parameters extends JPanel{
     p1.add(label5);
     p1.add(protocolSelector);
     p2.add(connectButton);
-    //split = new JSplitPane(JSplitPane.VERTICAL_SPLIT, p1, p2);
-    //this.add(split, BorderLayout.CENTER);
     this.add(p1, BorderLayout.NORTH);
     this.add(p2, BorderLayout.SOUTH);
     setVisible(true);