diff --git a/rxjava/src/main/java/com/baelding/rxjava/operator/cleanString.java b/rxjava/src/main/java/com/baelding/rxjava/operator/CleanString.java
similarity index 91%
rename from rxjava/src/main/java/com/baelding/rxjava/operator/cleanString.java
rename to rxjava/src/main/java/com/baelding/rxjava/operator/CleanString.java
index 8ae8d25cd7..9abdd7e07d 100644
--- a/rxjava/src/main/java/com/baelding/rxjava/operator/cleanString.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/operator/CleanString.java
@@ -3,9 +3,9 @@ package com.baelding.rxjava.operator;
 import rx.Observable.Operator;
 import rx.Subscriber;
 
-public class cleanString implements Operator<String, String> {
+public class CleanString implements Operator<String, String> {
 
-    public cleanString() {
+    public CleanString() {
         super();
     }
 
diff --git a/rxjava/src/main/java/com/baelding/rxjava/operator/toLength.java b/rxjava/src/main/java/com/baelding/rxjava/operator/ToLength.java
similarity index 75%
rename from rxjava/src/main/java/com/baelding/rxjava/operator/toLength.java
rename to rxjava/src/main/java/com/baelding/rxjava/operator/ToLength.java
index fa997b563d..ea954aa71c 100644
--- a/rxjava/src/main/java/com/baelding/rxjava/operator/toLength.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/operator/ToLength.java
@@ -4,8 +4,8 @@ import rx.Observable;
 import rx.Observable.Transformer;
 import rx.functions.Func1;
 
-public class toLength implements Transformer<String, Integer> {
-    public toLength() {
+public class ToLength implements Transformer<String, Integer> {
+    public ToLength() {
         super();
     }
 
diff --git a/rxjava/src/test/java/com/baeldung/rxjava/RxJavaCustomOperatorUnitTest.java b/rxjava/src/test/java/com/baeldung/rxjava/RxJavaCustomOperatorUnitTest.java
index 99ac0351be..ca1169486e 100644
--- a/rxjava/src/test/java/com/baeldung/rxjava/RxJavaCustomOperatorUnitTest.java
+++ b/rxjava/src/test/java/com/baeldung/rxjava/RxJavaCustomOperatorUnitTest.java
@@ -15,10 +15,9 @@ import rx.Observable;
 import rx.Observable.Operator;
 import rx.Observable.Transformer;
 import rx.Subscriber;
-import rx.functions.Func1;
 
-import com.baelding.rxjava.operator.cleanString;
-import com.baelding.rxjava.operator.toLength;
+import com.baelding.rxjava.operator.CleanString;
+import com.baelding.rxjava.operator.ToLength;
 
 public class RxJavaCustomOperatorUnitTest {
 
@@ -28,7 +27,7 @@ public class RxJavaCustomOperatorUnitTest {
         final List<String> results = new ArrayList<String>();
 
         final Observable<String> observable = Observable.from(list)
-            .lift(new cleanString());
+            .lift(new CleanString());
 
         // when
         observable.subscribe(results::add);
@@ -45,7 +44,7 @@ public class RxJavaCustomOperatorUnitTest {
         final List<Integer> results = new ArrayList<Integer>();
 
         final Observable<Integer> observable = Observable.from(list)
-            .compose(new toLength());
+            .compose(new ToLength());
 
         // when
         observable.subscribe(results::add);