CaesarCipher.java

import java.io.*;
import java.util.*;
public class CaesarCipher
{
   public static StringBuffer encrypt(String text, int s)
    {
        StringBuffer result= new StringBuffer();
 
        for (int i=0; i<text.length(); i++)
        {
            if (Character.isUpperCase(text.charAt(i)))
            {
                char ch = (char)(((int)text.charAt(i) + s - 65) % 26 + 65);
                result.append(ch);
            }
            else
            {
                char ch = (char)(((int)text.charAt(i) + s - 97) % 26 + 97);
                result.append(ch);
            }
        }
        return result;
    }
 
    public static void main(String[] args)
    {
        String text = "AARUSHINAIR";
        int s = 4;
        System.out.println("Text  : " + text);
        System.out.println("Shift : " + s);
        System.out.println("Cipher: " + encrypt(text, s));
    }
}








/*
👋 Hi, I’m @aarushinair — Aarushi Nair (she/her)
🎓 CS Engineer | AI Researcher | Software Engineer | DEI Professional
💡 Interests: AI/ML/DL, Responsible Tech, Innovative Technologies, Ethics in AI
🌍 Advocate for Women in Tech | Community & Events Manager @AnitaB.org India
🎙️ Speaker | Content Creator | STEM Mentor
📫 Let’s connect: https://www.linkedin.com/in/aarushinair/
📹 YouTube: Code with Aarushi → https://www.youtube.com/channel/UCKj5T1ELHCmkGKujkpqtl7Q
🐦 Twitter/X: https://x.com/aarushinair_
📁 Portfolio, projects & talks: https://github.com/aarushinair
*/