little progress

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/ROT13.java

@@ -0,0 +1,101 @@
+import static java.lang.Character.isLowerCase;
+import static java.lang.Character.isUpperCase;
+import static java.lang.Character.toLowerCase;
+
+public class ROT13  {
+
+    int rotateBy = 13;
+
+    private char[] rotatedAlphbet;
+    private char[] alphChars = "abcdefghijklmnopqrstuvwxyz".toCharArray();
+
+    ROT13(Character cs, Character cf) {
+        rotateBy = numbersByCount(cs, cf);
+        rotatedAlphbet = rotate("abcdefghijklmnopqrstuvwxyz", cf).toCharArray();
+    }
+
+    ROT13() {}
+
+    public static int numbersByCount(Character cs, Character cf){
+        String alphabet = "abcdefghijklmnopqrstuvwxyz";
+        char[] alphChars = alphabet.toCharArray();
+
+        int counter = 0;
+        for(int i = 0; i < alphChars.length; i++){
+            if(counter == 0){
+                if(alphChars[i] == cs){
+                    counter++;
+                }
+            } else if(alphChars[i] != cf){
+                counter++;
+            } else{
+                break;
+            }
+        }
+        return counter;
+
+    }
+
+    public static void main(String[] args){
+        new ROT13('a','n');
+        //System.out.println(new ROT13().crypt("Gb trg gb gur bgure fvqr!"));
+    }
+
+    public String crypt(String text) throws UnsupportedOperationException {
+        StringBuilder sb = new StringBuilder();
+        char[] cars = text.toCharArray();
+
+        for(char car: cars){
+            if(Character.isLetter(car)){
+                if(Character.isUpperCase(car)){
+                    sb.append(Character.toUpperCase(charShift(car)));
+                }else {
+                    sb.append(charShift(car));
+                }
+            } else{
+                sb.append(car);
+            }
+
+        }
+        return sb.toString();
+
+    }
+
+    private Character charShift(char c){
+        Character car = null;
+        for(int i = 0; i < this.alphChars.length; i++) {
+            if(this.alphChars[i] == Character.toLowerCase(c)){
+                car = this.rotatedAlphbet[i];
+                break;
+            }
+        }
+        return car;
+    }
+
+    public String encrypt(String text) {
+        return this.crypt(text);
+    }
+
+    public String decrypt(String text) {
+
+        return this.crypt(text);
+    }
+
+    public static String rotate(String s, Character c) {
+        char[] cars = s.toCharArray();
+
+        char temp;
+        while(cars[0] != c){
+            temp = cars[0];
+            for(int i = 0; i < cars.length -1; i++){
+                cars[i] = cars[i +1];
+            }
+            cars[cars.length -1] = temp;
+        }
+
+        return new String(cars);
+    }
+
+
+
+}

Crypto/src/ROT13Test.java → Crypto/src/test/java/ROT13Test.java

@@ -1,6 +1,7 @@
-import org.junit.Test;
 
-import static org.junit.Assert.*;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class ROT13Test {
 

SimpleCrypt.iml

@@ -0,0 +1,18 @@
+<?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/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" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-api:5.2.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.apiguardian:apiguardian-api:1.0.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.opentest4j:opentest4j:1.1.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-commons:1.2.0" level="project" />
+  </component>
+</module>

pom.xml

@@ -7,6 +7,14 @@
     <groupId>com.zipcodewilmington</groupId>
     <artifactId>SimpleCrypt</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 
 </project>