We have the a variable, and this variable also acts an object. When we type a. in the editor, it'll show all the methods that are present in that String class, as shown in the following screenshot:

It reads the first character in the strings as index zero, the second character as index one, and so on. When working on a program, if you want the character present on index two, you can get it simply by using the following statement:

        Systme.out.println(a.charAt(2));

You print it in the output so that you will see that character. You might be wondering why would we need a single character from a string, but the charAt method is often used. In the next section, we will look at a program that can completely reverse the string.

For now, we will just go through an overview of the methods. We saw how to get a character that is present at a particular index position. Now let's try reversing this. Say that we have the character present and we need to find the index...