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What Makes a Method Thread-safe? What are the rules?

Are there overall rules/guidelines for what makes a method thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple? ...
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What is the difference between id and class in CSS, and when should I use them? [duplicate]

...5. In CSS there is no "font-color", the style is color so the above should read: Example <div id="header_id" class="header_class">Text</div> #header_id {color:#fff} .header_class {color:#000} The text would be white. ...
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FileNotFoundException while getting the InputStream object from HttpURLConnection

...atus starts with 4nn or 5nn, you'd like to use getErrorStream() instead to read the response body which may contain the error details. InputStream error = con.getErrorStream(); share | improve thi...
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Why always ./configure; make; make install; as 3 separate steps?

... Reading this again, about one year later, I have to add that it all makes sense, and still there could be a single command call that does all 3 steps with their default configuration. They all have a default configuration oth...
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Is recursion ever faster than looping?

... recursion over iteration, I know there are lots of questions about that already. 12 Answers ...
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Can iterators be reset in Python?

Can I reset an iterator / generator in Python? I am using DictReader and would like to reset it to the beginning of the file. ...
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How to cat a file containing code?

...h: Here Documents This type of redirection instructs the shell to read input from the current source until a line containing only delimiter (with no trailing blanks) is seen. All of the lines read up to that point are then used as the standard input for a command. The format of ...
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Can I use if (pointer) instead of if (pointer != NULL)?

...Yes, you can. In fact, I prefer to use if(pointer) because it's simpler to read and write once you get used to it. Also note that C++11 introduced nullptr which is preferred over NULL. share | impr...
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Comment Inheritance for C# (actually any language)

...evelopers it's for architects so their butts are all covered: "Hey, can we read the code documentation of your project? Sure, here it is." – Trident D'Gao Nov 2 '17 at 16:32 a...
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How can I configure the font size for the tree item in the package explorer in Eclipse?

... everyone reading this please vote up bugs.eclipse.org/bugs/show_bug.cgi?id=49548 – morgwai May 2 '18 at 17:46 ...