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&& (AND) and || (OR) in IF statements
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No, it will not be evaluated. And this is very useful. For example, if you need to test whether a String is not null or empty, you can write:
if (str != null && !str.isEmpty()) {
doSomethingWith(str.charAt(0));
}
or, the other way around
if (str == null || str.isEmpt...
How do Mockito matchers work?
...rgument matchers (such as any , argThat , eq , same , and ArgumentCaptor.capture() ) behave very differently from Hamcrest matchers.
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Depend on a branch or tag using a git URL in a package.json?
Say I've forked a node module with a bugfix and I want to use my fixed version, on a feature branch of course, until the bugfix is merged and released.
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Iterator invalidation rules
What are the iterator invalidation rules for C++ containers?
6 Answers
6
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Why don't they teach these things in school? [closed]
Over the summer, I was fortunate enough to get into Google Summer of Code. I learned a lot (probably more than I've learned in the sum of all my university coursework). I'm really wondering why they don't teach a few of the things I learned sooner in school though. To name a few:
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javax.faces.application.ViewExpiredException: View could not be restored
...which I logout, then I come back to first page and I click on any link etc or refresh page I get this exception. I guess it's normal (or maybe not:)) because I logged out and session is destroyed. What should I do to redirect user to for example index.xhtml or login.xhtml and save him from seeing th...
Ignoring directories in Git repositories on Windows
How can I ignore directories or folders in Git using msysgit on Windows?
18 Answers
18...
How should strace be used?
...ly find out how a program is interacting with the OS. It does this by monitoring system calls and signals.
Uses
Good for when you don't have source code or don't want to be bothered to really go through it.
Also, useful for your own code if you don't feel like opening up GDB, but are just intereste...
When should I use a trailing slash in my URL?
When should a trailing slash be used in a URL? For example - should my URL look like /about-us/ or like /about-us ?
8 An...
Simple tool to 'accept theirs' or 'accept mine' on a whole file using git
...the conflicted file and manually choose the between HEAD (mine) and the imported change (theirs). Most of the time I either want all of their changes or all of mine. Commonly this is because my change made it upsteam and is coming back to me through a pull, but may be slightly modified in various ...