Write a program to encrypt the text with number of alphabet shift (CAESAR SHIFT CIPHER) using JAVA.

Java Program Code

   
 

/*;==========================================
; Title: Write a program to encrypt the text with number of alphabet shift (CAESAR SHIFT CIPHER) using JAVA. 
; Author: codenaive Santosh Kumar  <[email protected]< <[email protected]<
; Date:   18 Dec 2021
;==========================================*/
class TextMessage {
	public String message;
	public void addMessage(String msg){
		message=msg;
	}
}

class PlainTextMessage extends TextMessage{
	
	public void addMessage(String msg){
		message=msg;
	}
	public String getMessage(){
		return message;
	}
}
class EncryptedPlainText extends TextMessage {
	
	public void addMessage(String plain_message,int number_of_Shift){
		String[] arr = plain_message.split("");
		String enc="";
		for(int i=0; i<plain_message.length();i++){

			if(plain_message.charAt(i)=='v'){
				if(plain_message.charAt(i)==' '){
					enc+=" ";
				}
				else{
					enc+="a";
				}
			}
			else if(plain_message.charAt(i)=='w'){
				if(plain_message.charAt(i)==' '){
					enc+=" ";
				}
				else{
					enc+="b";
				}
			}
			else if(plain_message.charAt(i)=='x'){
				if(plain_message.charAt(i)==' '){
					enc+=" ";
				}
				else{
					enc+="c";
				}
			}
			else if(plain_message.charAt(i)=='y'){
				if(plain_message.charAt(i)==' '){
					enc+=" ";
				}
				else{
					enc+="d";
				}
			}
			else if(plain_message.charAt(i)=='z'){
				if(plain_message.charAt(i)==' '){
					enc+=" ";
				}
				else{
					enc+="e";
				}
			}
			else{
				if(plain_message.charAt(i)==' '){
					enc+=" ";
				}
				else{
					enc+=(char)((int)(plain_message.charAt(i))+number_of_Shift);
				}
			}
			
		}
		message=enc;
			
	}
	public String getMessage(){
		return message;
	}
}

public class CaesarShiftEncrypt{
	
	public static void main(String []args){
		PlainTextMessage plainLogger= new PlainTextMessage();
		EncryptedPlainText encryptLogger = new EncryptedPlainText();
	    String  message = "The website name is code naive";
		int number_of_Shift = 1;
		plainLogger.addMessage(message);
		encryptLogger.addMessage(message,number_of_Shift);
		
		System.out.println("Plain Text: "+plainLogger.getMessage());
		System.out.println("Cipher Text: "+encryptLogger.getMessage());
	}
	
}

Output

C:\CodeNaive>javac CaesarShiftEncrypt.java

C:\CodeNaive>java CaesarShiftEncrypt
Plain Text: The website name is code naive
Cipher Text: Uif bfctjuf obnf jt dpef objaf