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Understanding checked vs unchecked exceptions in Java

...tException is unchecked (= is subclass of RuntimeException). Why? I don't know. (but there should have been a method isValidInteger(..)) Is RuntimeException an unchecked exception? Yes, exactly. What should I do here? It depends on where this code is and what you want to happen. If it is in the UI l...
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How can I delete a file from a Git repository?

...rectory. Subsequently, git status showed the new files needing committing. Now I needed to delete them from git's tracking and version control... Sample output below is from what just happened to me, where I unintentionally deleted the .003 file. Thankfully, I don't care what happened to the local ...
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Image width/height as an attribute or in CSS? [duplicate]

...alt attribute. I'm fairly certain that most screen readers would not even know that a CSS image exists. share | improve this answer | follow | ...
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Retrieve a Fragment from a ViewPager

...re of any other drawbacks of this solution. If there are any, I'd like to know. share | improve this answer | follow | ...
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Android ImageView Zoom-in and Zoom-Out

...with "return (float)Math.sqrt(x * x + y * y);" coz FloatMath is deprecated now. Cheers – Nagaraj Alagusudaram Oct 12 '15 at 12:00  |  show 17 ...
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Show DialogFragment with animation growing from a point

...d:windowExitAnimation">@anim/anim_out</item> </style> Now add the animation files in the res/anim folder: ( the android:pivotY is the key ) anim_in.xml <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <...
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initializer_list and move semantics

... const initializer_list at the compiler's discretion, so the user doesn't know whether to expect a const or mutable result from begin and end. But that's just my gut feeling, probably there's a good reason I'm wrong. Update: I've written an ISO proposal for initializer_list support of move-only typ...
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Python vs Cpython

...OAD_FAST 1 (y) 34 BINARY_ADD 36 RETURN_VALUE Now, let's have a look at the above code. Lines 1 to 6 are a function definition. In line 8, we import the 'dis' module which can be used to view the intermediate Python bytecode (or you can say, disassembler for Python bytec...
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No == operator found while comparing structs in C++

... @Jonathan: Why would C++ know how you want to compare your structs for equality? And if you want the simple way, there's always memcmp so long your structs don't contain pointer. – Xeo Apr 21 '11 at 6:59 ...
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Scoping in Python 'for' loops

...reator, Guido van Rossum, worked on ABC for several years in the 1980s. I know almost nothing about ABC, but as it is intended for beginners, I suppose it must have a limited number of scopes, much like early BASICs. share ...