{jaejoson submission}

Crypto/src/ROT13.java

@@ -1,32 +0,0 @@
-import static java.lang.Character.isLowerCase;
-import static java.lang.Character.isUpperCase;
-import static java.lang.Character.toLowerCase;
-
-public class ROT13  {
-
-    ROT13(Character cs, Character cf) {
-    }
-
-    ROT13() {
-    }
-
-
-    public String crypt(String text) throws UnsupportedOperationException {
-
-        return "";
-    }
-
-    public String encrypt(String text) {
-        return text;
-    }
-
-    public String decrypt(String text) {
-        return text;
-    }
-
-    public static String rotate(String s, Character c) {
-
-        return "";
-    }
-
-}

Crypto/src/main/java/Caesar.java

@@ -0,0 +1,5 @@
+public class Caesar extends ROT13 {
+    Caesar () {
+        super ('a', 'd');
+    }
+}

Crypto/src/main/java/ROT13.java

@@ -0,0 +1,74 @@
+import static java.lang.Character.isLowerCase;
+import static java.lang.Character.isUpperCase;
+import static java.lang.Character.toLowerCase;
+
+public class ROT13  { //rotate13characters
+    //cryptography language: start w/ plaintext (data that has not yet been encryted) -> cryptmethodfunction ->
+    //produces ciphertext;
+//    private final String uppercaseStart = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+//    private final String lowercaseStart = "abcdefghijklmnopqrstuvwxyz";
+    protected String startUpper;
+    protected  String startLower;
+
+
+
+    ROT13(Character cs, Character cf) {
+    }
+
+    ROT13() {
+    }
+
+
+    public String crypt(String text) throws UnsupportedOperationException {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < text.length(); i++) {
+            char ch = text.charAt(i);
+            if (ch > 'a' && ch <= 'm') {
+                ch += 13;
+            } else if (ch >= 'A' && ch <= 'M') {
+                ch += 13;
+            } else if (ch >= 'n' && ch <= 'z') {
+                ch -= 13;
+            } else if (ch >= 'N' && ch <= 'Z') {
+                ch -= 13;
+            }
+            sb.append(ch);
+        }
+        return sb.toString();
+    }
+
+    public String encrypt(String text) {
+        return crypt(text);
+    }
+
+    public String decrypt(String text) {
+        return crypt(text);
+    }
+
+//        StringBuilder sb = new StringBuilder();
+//        for (int i = 0; i < text.length; i++) {
+//            Character ch = text.charAt(i);
+//            Integer position = 0;
+//            if (isUpperCase(ch)) {
+//                position = startUpper.indexOf(ch);
+//                sb.append(registUpper.charAt(position));
+//            } else if (isLowerCase(ch)) {
+//                position = registerLower.indexOf(ch);
+//                sb.append(startLower.charAt(position));
+//            } else {
+//                sb.append(ch);
+//            }
+//
+//        }
+//
+//        return sb.toString();
+//    }
+
+
+    public static String rotate(String s, Character c) {
+        int offset = s.indexOf(c);
+        int i = offset % s.length();
+        return s.substring(i) + s.substring(0, i);
+    }
+
+}

SimpleCrypt.iml

@@ -0,0 +1,16 @@
+<?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_8">
+    <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/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/Crypto/src/test/java" isTestSource="true" />
+      <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

@@ -8,5 +8,12 @@
     <artifactId>SimpleCrypt</artifactId>
     <version>1.0-SNAPSHOT</version>
 
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+        </dependency>
+    </dependencies>
 
 </project>