//Sample19_22.java
class Sample19_22{
    public static void main(String[] args){
        imitationString imiStr = new imitationString("ヒザカックン");

        try{
            System.out.println(imiStr.imitationCharAt(6));
            System.out.println("end of try.");
        }catch(ArrayIndexOutOfBoundsException e){
            System.out.println(e);
        }

        System.out.println("complete");
    }
}

class imitationString{
    final char[] value;

    imitationString(String str){
        value = str.toCharArray();
    }

    public char imitationCharAt(int index) {
        return value[index];
    }
}