From aaa57839489731d83f64c159a4b6a0dd75238815 Mon Sep 17 00:00:00 2001
From: hneemann <helmut.neemann@arcor.de>
Date: Thu, 14 Jul 2016 22:51:15 +0200
Subject: [PATCH] add some comments.

---
 .../builder/circuit/FragmentSameInValue.java       | 14 +++++++++++---
 .../builder/circuit/FragmentVisualElement.java     |  4 ++--
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/main/java/de/neemann/digital/builder/circuit/FragmentSameInValue.java b/src/main/java/de/neemann/digital/builder/circuit/FragmentSameInValue.java
index cbed8352c..3130c2dfd 100644
--- a/src/main/java/de/neemann/digital/builder/circuit/FragmentSameInValue.java
+++ b/src/main/java/de/neemann/digital/builder/circuit/FragmentSameInValue.java
@@ -10,12 +10,20 @@ import java.util.List;
 import static de.neemann.digital.draw.shapes.GenericShape.SIZE;
 
 /**
+ * Takes a fragment ans sets all inputs to a single value.
+ * Used to create a circuit with a JK ff with J==K.
+ *
  * @author hneemann
  */
 public class FragmentSameInValue implements Fragment {
     private final Fragment fragment;
     private Vector pos;
 
+    /**
+     * Creates a new instance
+     *
+     * @param fragment the fragment with all imputs are the same value
+     */
     public FragmentSameInValue(Fragment fragment) {
         this.fragment = fragment;
     }
@@ -36,13 +44,13 @@ public class FragmentSameInValue implements Fragment {
     public void addToCircuit(Vector pos, Circuit circuit) {
         List<Vector> in = Vector.add(fragment.getInputs(), pos);
 
-        Vector last=null;
+        Vector last = null;
         for (Vector v : in) {
             Vector p = v.add(-SIZE, 0);
             circuit.add(new Wire(v, p));
-            if (last!=null)
+            if (last != null)
                 circuit.add(new Wire(last, p));
-            last=p;
+            last = p;
         }
 
         fragment.addToCircuit(pos, circuit);
diff --git a/src/main/java/de/neemann/digital/builder/circuit/FragmentVisualElement.java b/src/main/java/de/neemann/digital/builder/circuit/FragmentVisualElement.java
index 7542e8a12..0de041edc 100644
--- a/src/main/java/de/neemann/digital/builder/circuit/FragmentVisualElement.java
+++ b/src/main/java/de/neemann/digital/builder/circuit/FragmentVisualElement.java
@@ -60,7 +60,7 @@ public class FragmentVisualElement implements Fragment {
     }
 
     /**
-     * Used to ignore the c input at the JK flipflop
+     * Used to ignore the c input at a JK flipflop
      *
      * @param n number of pin to ignore
      * @return this for call chaining
@@ -75,7 +75,7 @@ public class FragmentVisualElement implements Fragment {
      *
      * @param key     the key
      * @param value   the value
-     * @param <VALUE> the tyype of the value
+     * @param <VALUE> the type of the value
      * @return this for call chaining
      */
     public <VALUE> FragmentVisualElement setAttr(Key<VALUE> key, VALUE value) {