Status Updates From Effective Java

Item 49

Item 41

Ch7

Item 35

Item 33

Item 29

Item 27

We follow two rules in the matter of optimization:
Rule 1. Don’t do it.
Rule 2 (for experts only). Don’t do it yet—that is, not until you have a
perfectly clear and unoptimized solution.
—M. A. Jackson

Item 25

Planned to scan items but looks like I made the wrong decision. Each item in this book is so catchy that I have to read one by one thoroughly.

Just starting on the book.

Статья 16 "Предпочитайте компоновку наследованию"

Глава 3 "Методы, общие для всех объектов"

I can tell by reading just the first dozen items in this book that it's incredibly good. I believe this is an absolute must read for all Java software developers. can't wait to reach some of the later chapters. I intend to read this cover to cover, although it's not a requisite.

Now it is time for exceptions.

Concurrency - DONE

Exceptions - DONE

completed 8 items

General Programming - DONE

Methods - DONE

Enums and Annotations - DONE

Chapter about Generics is done. Well written and useful.

"it is impossible to represent 0.1 (or any other negative power of ten) as a float or double
exactly."

Once again, *mindblown*. I shudder to think how many mistakes must be buried in my software pieces on account of this one.

Check parameters:
- public methods: throw exceptions
- private ones: use assert!

"Using the string concatenation operator
repeatedly to concatenate n strings requires time quadratic in n. It is an unfortunate
consequence of the fact that strings are immutable. When two strings are
concatenated, the contents of both are copied." Oo

I just began this book, and I'm already learning quite the interesting things! This can only be a good sign.

From now on, all my for loops shall look like this:

for (int i = 0, n = expensiveComputation(); i < n; i++) {}

So obvious, so simple, and yet, why aren't we all doing it this way?

Because work.

#Java: whenever a class manages its own memory, the #programmer should be alert for #memory #leaks

so 169 is 50%