First Size Calculating

src/gui/ControlWindow.java

@@ -1,15 +1,25 @@
 package gui;
 
 import javax.swing.*;
+import java.awt.*;
 
 public class ControlWindow {
 
     private JFrame controlWindow;
 
     public ControlWindow(){
+
         controlWindow = new JFrame();
-        controlWindow.setVisible(true);
+
+        controlWindow.getContentPane().setPreferredSize(new Dimension(400, 800));
         controlWindow.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
+        controlWindow.setResizable(false);
+//        controlWindow.set
+        controlWindow.setLayout(null);
+
+        controlWindow.pack();
+        controlWindow.setVisible(true);
+
     }
 
 }