Mine

    Scanner scan = new Scanner (System.in);
    String text;
    int langd;
    char bokstav;
    
    System.out.print("Skriv in text: ");
    text = scan.nextLine();
    langd = text.length();
    
    for (int i = 0; i < langd; i++){
        if(text.substring(i+1).equals('a'));
    }
    System.out.print();