Encription method example

package softuni;


import java.util.Scanner;



public class SoftUni {

    static String encriptionMethod(int amount){
        Scanner sc = new Scanner(System.in);
        String text = "";
        int count = 0;
        while(count < amount){
            char letter = sc.next().charAt(0);
            int ascii = (int)letter;
            String asciiStr = Integer.toString(ascii);
            char first = asciiStr.charAt(0);
            int firstInt = Integer.parseInt(String.valueOf(first));
            int lastInt = ascii%10;
            char comb1 = (char) (ascii+lastInt);
            char comb2 = (char) (ascii-firstInt);

            String text1 = comb1 + (Integer.toString(firstInt)+ "" + Integer.toString(lastInt)) + comb2;
            text += text1;
            count++;
         }
        return text;
    }


    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter the amount of numbers here: ");
        int amount = Integer.parseInt(sc.nextLine());
        System.out.println(encriptionMethod(amount));


    }

}