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What is the difference between iterator and iterable and how to use them?

I am new in Java and I'm really confused with iterator and iterable. Can anyone explain to me and give some examples? 13 An...
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Find and restore a deleted file in a Git repository

Say I'm in a Git repository. I delete a file and commit that change. I continue working and make some more commits. Then, I find I need to restore that file. ...
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Optimal settings for exporting SVGs for the web from Illustrator?

I'm looking to use an SVG logo for a website — to make it look great on a responsive design for all devices. 2 Answers ...
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Does a `+` in a URL scheme/host/path represent a space?

...ed, but any + characters in the path component is expected to be treated literally. To be explicit: + is only a special character in the query component. share | improve this answer | ...
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Remove blue border from css custom-styled button in Chrome

...working on a web page, and I want custom-styled <button> tags. So with CSS, I said: border: none . Now it works perfectly in safari, but in chrome, when I click one of the buttons, it puts an annoying blue border around it. I thought button:active { outline: none } or button:focus { outl...
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android.view.InflateException: Binary XML file: Error inflating class fragment

...in. I created an Android application that uses Android AppCompat to make it compatible with older versions. Here is my main activity layout file: ...
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What is the meaning of “POSIX”?

What is POSIX? I have read the Wikipedia article and I read it every time I encounter the term. The fact is that I never really understood what it is. ...
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How to backup a local Git repository?

I am using git on a relatively small project and I find that zipping the .git directory's contents might be a fine way to back up the project. But this is kind of weird because, when I restore, the first thing I need to do is git reset --hard . ...
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Timer & TimerTask versus Thread + sleep in Java

... The advantage of TimerTask is that it expresses your intention much better (i.e. code readability), and it already has the cancel() feature implemented. Note that it can be written in a shorter form as well as your own example: Timer uploadCheckerTimer = new...
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Why does .NET foreach loop throw NullRefException when collection is null?

So I frequently run into this situation... where Do.Something(...) returns a null collection, like so: 11 Answers ...