MyCode

package Module1;

import java.util.Scanner;

@interface KakumiriziDaud
{String name();
String ID();
}
@KakumiriziDaud(name = "Kakumirizi Daud", ID = "17/BSS/BU/R/0010")
public class Demo1 {

          Scanner in;

          Demo1() {
              in = new Scanner(System.in);
          }

        public  void security() {


            System.out.println("Please Enter your text: ");
            String sp = in.nextLine();
            String ss = sp.toLowerCase();

            System.out.println("Please enter your key: ");
            String sy = in.nextLine();
            String sx = sy.toLowerCase();

            System.out.println("1  Encrypt plain text using binary and Or");
            System.out.println("2  Decrypt cipher text using binary and Or");
            System.out.println("0  Exit the program");

            System.out.println("Please enter your menu selection:--------- ");

            int x = in.nextInt();

            String binary1 = " ";
            String binary2 = " ";


            if (x == 1) {

                    if(ss.length()==sx.length())
                    {

                        char [] ch = ss.toCharArray();
                        char [] hc = sx.toCharArray();


                        System.out.print("You entered:                ");
                for (char cc : ch) {

                    int i = (int) cc - (int) 'a';
                    String binary = Integer.toBinaryString(i);
                   System.out.print(cc+"     ");

                }

                        System.out.println();
                        System.gc();
                        System.out.print("You key is:                 ");
                for (char mc : ch) {

                    int j = (int) mc - (int) 'a';
                    String binary = Integer.toBinaryString(j);

                    System.out.print(mc + "     ");

                }
                        System.out.println();

                    }
                    else
                    {
                       System.out.println("The length of  strings do not match ");
                       while (ss.length() != sx.length())
                           return;
                        System.exit(0);
                   }


           }
            else if (x == 2) {
                // public void dencrypt(){
                System.out.println("I am the decrypt method");

            } else if (x == 0) {
                // public void exit()
                {

                    System.exit(0);
                }
            } else {
                System.out.println("Enter one of the value  from the list provided");
            }


            System.out.println("Your text in base 10:        "+i);
            System.out.println("Your key in base 10:         "+j);
            System.out.println("Your text in base 2:        "+binary1);
            System.out.println("Your key in base 2:        "+binary2);
            System.out.println();
            System.out.println("-------------------------------------------------");
            System.out.println("Your cipher text in plain text: ");
        }
    }