Why is Java's String memory usage said to be high?

Question

On this blog post, it\'s said that the minimum memory usage of a String is:

8 * (int) ((((no chars) * 2) + 45) / 8) bytes.

So for the String \"Apple

Answer 1

Is it possible to save character data using less memory than a Java String? Yes.

Does it matter for "enterprise" applications (or even Android or J2ME applications, which have to get by on a lot less memory)? Almost never.

Premature optimization is the root...