el fin

Crypto/src/CaesarCipher.java

@@ -0,0 +1,7 @@
+public class CaesarCipher extends ROT13{
+
+    CaesarCipher(Character cs, Character cf) {
+       super('a', 'd');
+    }
+
+}

Crypto/src/ROT13.java

@@ -10,23 +10,57 @@ public class ROT13  {
     ROT13() {
     }
 
+//    public String shift13(String str, Character ch) {
+//        StringBuilder shifted = new StringBuilder();
+//        Character[] strToArray = new Character[0];
+//        for (int i = 0; i < strToArray.length; i++) {
+//            if (i >= 97 && i <= 122) {
+//                i += 13;
+//                shifted.append(i);
+//            }
+//            if (i <= 90 && i >= 65) {
+//                i += 13;
+//                shifted.append(i);
+//            } else {
+//                shifted.append(i);
+//            }
+//        }
+//        return shifted.toString();
+//    }
 
-    public String crypt(String text) throws UnsupportedOperationException {
 
-        return "";
+    public String crypt(String text) throws UnsupportedOperationException {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < text.length(); i++) {
+            char c= text.charAt(i);
+            if (c >= 'a' && c <= 'm') {
+                c += 13;
+            } else if (c >= 'A' && c <= 'M') {
+                c += 13;
+            } else if (c >= 'n' && c <= 'z') {
+                c -= 13;
+            } else if (c >= 'N' && c <= 'Z') {
+                c -= 13;
+            }
+            sb.append(c);
+        }
+        return sb.toString();
     }
 
-    public String encrypt(String text) {
-        return text;
+    public String encrypt (String text){
+        return crypt(text);
     }
 
-    public String decrypt(String text) {
-        return text;
+    public String decrypt (String text){
+        return crypt(text);
     }
 
-    public static String rotate(String s, Character c) {
-
-        return "";
+    public static String rotate (String s, Character c){
+        int startIndex = s.indexOf(c);
+        StringBuilder sb = new StringBuilder();
+        sb.append(s.substring(startIndex, s.length()));
+        sb.append(s.substring(0, startIndex));
+        return sb.toString();
     }
 
 }

SimpleCrypt.iml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/Crypto/src" isTestSource="false" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: junit:junit:4.12" level="project" />
+    <orderEntry type="library" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+  </component>
+</module>

pom.xml

@@ -7,6 +7,13 @@
     <groupId>com.zipcodewilmington</groupId>
     <artifactId>SimpleCrypt</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+        </dependency>
+    </dependencies>
 
 
 </project>