"Cannot find variable charAt()" error in Java

I am getting the following error while running my simple Java program. This w开发者_如何学Goill lead me to make a bigger module.

Error

C:\Java prog>javac Testt.java
Testt.java:10: cannot find symbol
symbol  : variable charAt
location: class java.lang.String
kk=k.charAt[i];
    ^

The program

class Testt
{
    public static void main(String args[])
    {
        String k="my name is bhola ram";
        for(int i=0;i<10;i++)
        {
            System.out.println(k.charAt[i]);
        }
     }
}

try this:

System.out.println(k.charAt(i));

the difference is that you're using array subscripts [] rather than the parantheses required for a function call. (thanks Andy)

doc for charAt()

charAt() is a method of the String class.

methods take parameters not indices.

The first ones are given between ( and ).

The second ones are given between [ and ], and are often used for indicating the position in an array.

The mistake is made, I suspect, because in many programming languages a String is a kind of Array of chars that can take parameters.

So MyString[2] would be valid. This is not the case in Java however, hence the charAt(). method.