Frontend

build.gradle

@@ -2,6 +2,14 @@ plugins {
     id 'java'
 }
 
+jar {
+    manifest {
+        attributes(
+                'Main-Class': 'App'
+        )
+    }
+}
+
 group 'com.chalie.caesar'
 version '1.0-SNAPSHOT'
 

src/main/java/App.java

@@ -1,13 +1,69 @@
 import java.io.Console;
 
 public class App {
+    public static final String RED = "\033[0;31m";     // RED
+    public static final String GREEN = "\033[0;32m";   // GREEN
+    public static final String BLUE = "\033[0;34m";    // BLUE
+    public static final String  NEUTRAL = "\033[0m";  // NEUTRAL
     public static void main(String[] args){
         Console myConsole = System.console();
-        System.out.println("Enter the text to Encrypt: ");
-        String input = myConsole.readLine();
-        CaesarShift encDec = new CaesarShift();
-        System.out.println("Input String: " + input);
-        System.out.println("Encrypted: " + encDec.encrypt(input));
-        System.out.println("Decrypted String: "+encDec.decrypt(encDec.encrypt(input)));
+        CaesarShift myCaesar = new CaesarShift();
+        boolean running = true;
+        String version = "V1.0";
+
+        System.out.println(BLUE+"  ____                           ____  _     _  __ _   \n" +
+                " / ___|__ _  ___  ___  __ _ _ __/ ___|| |__ (_)/ _| |_ \n" +
+                "| |   / _` |/ _ \\/ __|/ _` | '__\\___ \\| '_ \\| | |_| __|\n" +
+                "| |__| (_| |  __/\\__ \\ (_| | |   ___) | | | | |  _| |_ \n" +
+                " \\____\\__,_|\\___||___/\\__,_|_|  |____/|_| |_|_|_|  \\__|"+version+NEUTRAL);
+        System.out.println(RED+"             Encrypt/Decrypt your messages"+NEUTRAL);
+        System.out.println(BLUE+"                    By @Chal13W1zz"+NEUTRAL);
+
+        while (running){
+
+            System.out.println("\n \nSelect an option \n -> Encrypt a message : 1 \n -> Decrypt a message : 2 \n -> Exit : 3 ");
+            Integer option = Integer.parseInt(myConsole.readLine(BLUE+"option"+GREEN+"@caesar:"+BLUE+"~$ "+NEUTRAL));
+
+
+            if(option == 1){
+                System.out.println("\nEnter the message to Encrypt : ");
+                String message = myConsole.readLine(BLUE+"message"+GREEN+"@caesar:"+BLUE+"~$ "+NEUTRAL);
+                System.out.println("\nEnter the shift key '1 - 25' :");
+                int key = Integer.parseInt(myConsole.readLine(BLUE+"key"+GREEN+"@caesar:"+BLUE+"~$ "+NEUTRAL));
+                myCaesar.setKey(key);
+                myCaesar.encrypt(message);
+                System.out.println(RED+"&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&"+NEUTRAL);
+                System.out.println(BLUE+"Input String: "+GREEN+message);
+                System.out.println(BLUE+"Encrypted String: "+GREEN+myCaesar.getEncryptedMsg());
+                System.out.println(BLUE+"Shift/Encryption key : "+GREEN+myCaesar.getKey()+NEUTRAL);
+                System.out.println(RED+"&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&"+NEUTRAL);
+
+            }else if(option == 2){
+                System.out.println("Enter the message to Decrypt : ");
+                String message = myConsole.readLine(BLUE+"encryptedMessage"+GREEN+"@caesar:"+BLUE+"~$ "+NEUTRAL);
+                System.out.println("\nEnter the shift key '1 - 25' :");
+                int key = Integer.parseInt(myConsole.readLine(BLUE+"key"+GREEN+"@caesar:"+BLUE+"~$ "+NEUTRAL));
+                myCaesar.setKey(key);
+                myCaesar.decrypt(message);
+                System.out.println(RED+"&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&"+NEUTRAL);
+                System.out.println(BLUE+"Input String: "+GREEN+message);
+                System.out.println(BLUE+"Decrypted String: "+GREEN+myCaesar.getDecryptedMsg());
+                System.out.println(BLUE+"Shift/Decryption key : "+GREEN+myCaesar.getKey()+NEUTRAL);
+                System.out.println(RED+"&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&"+NEUTRAL);
+
+            }else if(option == 3){
+                System.out.println(RED+"Goodbye :)");
+                running = false ;
+            }else {
+                System.out.println(RED+"Oops!, invalid Option :("+NEUTRAL);
+            }
+        }
+
+        //
+//        int
+//        CaesarShift encDec = new CaesarShift("Hello",25);
+//        System.out.println("Input String: " + input);
+//        System.out.println("Encrypted: " + encDec.encrypt(input));
+//        System.out.println("Decrypted String: "+encDec.decrypt(encDec.encrypt(input)));
     }
 }

src/main/java/CaesarShift.java

@@ -2,21 +2,21 @@
 
 public class CaesarShift {
     private static final String ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; //Encapsulate and make the alphabet immutable
-    private static int key = 25; //Initialize and encapsulate the shift key
+    private static  int key = 25; //Initialize and encapsulate the shift key
     private static String encryptedMsg; //Create and encapsulate the message container
-    private static String decryptedMsg;
+    private static String decryptedMsg; //Create and encapsulate the decrypted message container
 
-    public String encrypt(String encryptMsg){
+    public String encrypt(String encryptMsg) {
         String upCased = encryptMsg.toUpperCase();
         char[] upCasedArrs = upCased.toCharArray();//split the string to a character array
         ArrayList<Character> encryptedChars = new ArrayList<Character>();
 
         //loop through the character array
-        for(Character character : upCasedArrs ){
+        for (Character character : upCasedArrs) {
             int index = ALPHABET.indexOf(character.toString());//get the character rank in the alphabet
-            int encryptedCharIndex = Math.floorMod((index+key),26);//shift the character using the key and get the new characters rank in the alphabet
+            int encryptedCharIndex = Math.floorMod((index + key), 26);//shift the character using the key and get the new characters rank in the alphabet
             encryptedChars.add(ALPHABET.charAt(encryptedCharIndex));//get the character from the alphabet rank and add it to the char array
-            encryptedMsg = encryptedChars.toString().replaceAll("\\[|\\]|\\s","").replaceAll(",","");//convert and cleanup the char array to a string
+            encryptedMsg = encryptedChars.toString().replaceAll("\\[|\\]|\\s", "").replaceAll(",", "");//convert and cleanup the char array to a string
         }
         return encryptedMsg;
     }
@@ -37,4 +37,20 @@ public String decrypt(String decryptMsg) {
 
     }
 
+    public static int getKey() {
+        return key;
+    }
+
+    public static void setKey(int key) {
+        CaesarShift.key = key;
+    }
+
+    public static String getEncryptedMsg() {
+        return encryptedMsg;
+    }
+
+    public static String getDecryptedMsg() {
+        return decryptedMsg;
+    }
+
 }