diff --git a/src/edu/macalester/comp124/stringtransformer/Capitalizer.java b/src/edu/macalester/comp124/stringtransformer/Capitalizer.java
new file mode 100644
index 0000000..d2ef1da
--- /dev/null
+++ b/src/edu/macalester/comp124/stringtransformer/Capitalizer.java
@@ -0,0 +1,22 @@
+package edu.macalester.comp124.stringtransformer;
+
+public class Capitalizer extends StringTransformer {
+    @Override
+    public String transform(String s) {
+        String newS = "";
+        for (int i = 0; i <= s.length() - 1; i++) {
+            if (i == 0) {
+                char upper = Character.toUpperCase(s.charAt(i));
+                newS += upper;
+            } else {
+                newS += s.charAt(i);
+            }
+        }
+        return newS;
+    }
+
+    @Override
+    public String toString() {
+        return "--Reversed--";
+    }
+}
diff --git a/src/edu/macalester/comp124/stringtransformer/Reverser.java b/src/edu/macalester/comp124/stringtransformer/Reverser.java
new file mode 100644
index 0000000..f245669
--- /dev/null
+++ b/src/edu/macalester/comp124/stringtransformer/Reverser.java
@@ -0,0 +1,17 @@
+package edu.macalester.comp124.stringtransformer;
+
+public class Reverser extends StringTransformer {
+
+    @Override
+    public String transform(String s) {
+        String newS = "";
+        for (int i = s.length() - 1; i >= 0; i--) {
+            newS += s.charAt(i);
+        }
+        return newS;
+    }
+    @Override
+    public String toString() {
+        return "--Reversed--";
+    }
+}
diff --git a/src/edu/macalester/comp124/stringtransformer/Yeller.java b/src/edu/macalester/comp124/stringtransformer/Yeller.java
index d892beb..73a5e17 100644
--- a/src/edu/macalester/comp124/stringtransformer/Yeller.java
+++ b/src/edu/macalester/comp124/stringtransformer/Yeller.java
@@ -5,10 +5,11 @@ public class Yeller extends StringTransformer {
     @Override
     public String transform(String s) {
         return s.toUpperCase();
-     }
+    }
     
     @Override
     public String toString() {
         return "All capitalized";
     }
+
 }
diff --git a/test/edu/macalester/comp124/stringtransformer/CapitalizerTest.java b/test/edu/macalester/comp124/stringtransformer/CapitalizerTest.java
new file mode 100644
index 0000000..7b1287a
--- /dev/null
+++ b/test/edu/macalester/comp124/stringtransformer/CapitalizerTest.java
@@ -0,0 +1,19 @@
+package edu.macalester.comp124.stringtransformer;
+
+import org.junit.Test;
+import static org.junit.Assert.assertEquals;
+
+public class CapitalizerTest {
+    private final StringTransformer capitalize = new Capitalizer();
+
+    @Test
+    public void handlesEmptyString() {
+        assertEquals("", capitalize.transform(""));
+    }
+
+    @Test
+    public void capitalizeFirstLetter() {
+        assertEquals("Act", capitalize.transform("act"));
+        assertEquals("ZonGle", capitalize.transform("zonGle"));
+    }
+}
diff --git a/test/edu/macalester/comp124/stringtransformer/ReverserTest.java b/test/edu/macalester/comp124/stringtransformer/ReverserTest.java
new file mode 100644
index 0000000..6bfa03c
--- /dev/null
+++ b/test/edu/macalester/comp124/stringtransformer/ReverserTest.java
@@ -0,0 +1,23 @@
+package edu.macalester.comp124.stringtransformer;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+
+public class ReverserTest {
+
+    private final StringTransformer reverse = new Reverser();
+
+    @Test
+    public void handlesEmptyString() {
+        assertEquals("", reverse.transform(""));
+    }
+
+    @Test
+    public void reversesString() {
+        assertEquals("tca", reverse.transform("act"));
+        assertEquals("elGnoz", reverse.transform("zonGle"));
+    }
+}
+