Minor cleanup

src/de/andreasvoelker/BlochFrame.java

@@ -9,8 +9,8 @@ import com.jogamp.opengl.util.Animator;
 import java.awt.event.*;
 
 public class BlochFrame extends GLCanvas {
-    BlochRenderer renderer;
-    Animator animator;
+    final BlochRenderer renderer;
+    final Animator animator;
 
 
     class MyMouseMotionListener implements MouseMotionListener {

src/de/andreasvoelker/BlochRenderer.java

@@ -13,7 +13,7 @@ import java.io.IOException;
 public class BlochRenderer implements GLEventListener {
 
     private BlochSphere blochSphere;
-    private GLU glu = new GLU();
+    private final GLU glu = new GLU();
     Texture colormap;
 
     private float radius = 3;

src/de/andreasvoelker/BlochSphere.java

@@ -1,7 +1,5 @@
 package de.andreasvoelker;
 
-import java.util.ArrayList;
-
 public class BlochSphere {
     private static final int INITIAL_RESERVED = 20;
     private static final float GOLDEN_RATIO = 1.618f;

src/de/andreasvoelker/Main.java

@@ -1,7 +1,5 @@
 package de.andreasvoelker;
 
-import javax.swing.*;
-
 public class Main {
 
     public static void main(String[] args) {

src/de/andreasvoelker/MainWindows.java

@@ -1,19 +1,13 @@
 package de.andreasvoelker;
 
-import com.jogamp.opengl.GLCapabilities;
-import com.jogamp.opengl.GLProfile;
-import com.jogamp.opengl.awt.GLCanvas;
-import com.jogamp.opengl.util.Animator;
 import net.miginfocom.swing.MigLayout;
 
 import javax.swing.*;
 import java.io.*;
-import java.util.Locale;
-import java.util.Scanner;
 
 public class MainWindows extends JFrame {
-    JButton button;
-    BlochFrame blochFrame;
+    final JButton button;
+    final BlochFrame blochFrame;
 
     MainWindows(){
         super("BlochRender");