Question

I have a very long String and I want to read character by character until the end of the String.

In Java, I found two ways to read it:

1. Using CharAt.
2. Using StringReader.

Can anybody help me:

1. Which one is the faster way ?
2. How to use StringReader to read character by character until the end
   of the String ?

Thanks in advance.

Answer 1

1. Measure it and find out! Seriously, things may be different for me on my hardware compared to you on your hardware. But I suspect charAt()
2. It’s just a Reader, so it has the same methods as any other Reader, including int read() which will return you the Unicode code point for each character, one by one