diff --git a/eu.heili/EnxorGate.java b/eu.heili/EnxorGate.java
index 3151b5e..5f78be3 100644
--- a/eu.heili/EnxorGate.java
+++ b/eu.heili/EnxorGate.java
@@ -1,4 +1,4 @@
-public class EnxorGate extends ExorGate{
+public class EnxorGate extends ExorGate {
     public EnxorGate(int inputnr) {
         super(inputnr);
     }
diff --git a/eu.heili/NandGate.java b/eu.heili/NandGate.java
index 7112836..d6143b2 100644
--- a/eu.heili/NandGate.java
+++ b/eu.heili/NandGate.java
@@ -1,4 +1,4 @@
-public class NandGate extends AndGate{
+public class NandGate extends AndGate {
     public NandGate(int inputnr) {
         super(inputnr);
     }
diff --git a/eu.heili/NorGate.java b/eu.heili/NorGate.java
index 14e2ff1..ce4fccb 100644
--- a/eu.heili/NorGate.java
+++ b/eu.heili/NorGate.java
@@ -1,4 +1,4 @@
-public class NorGate extends OrGate{
+public class NorGate extends OrGate {
     public NorGate(int inputnr) {
         super(inputnr);
     }
diff --git a/eu.heili/NotGate.java b/eu.heili/NotGate.java
index 5877212..c77179b 100644
--- a/eu.heili/NotGate.java
+++ b/eu.heili/NotGate.java
@@ -1,4 +1,4 @@
-public class NotGate extends LogicGate{
+public class NotGate extends LogicGate {
     public NotGate() {
         super(1);
     }