Java - Write code to get first char from string

Requirements

Write code to get first char from string

Demo

//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        String input = "book2s.com";
        System.out.println(getFirstCharFromInput(input));
    }/*from   w  ww.  j a  v  a  2  s  .c o  m*/

    public static char getFirstCharFromInput(String input) {
        if (input.length() == 1) {
            return input.charAt(0);
        } else if (input.equals("\\n")) {
            return '\n';
        } else if (input.equals("\\t")) {
            return '\t';
        } else {
            return 0;
        }
    }
}