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What is an uninterruptible process?

...e kernel returns to user mode, it checks if there are any signals pending (including the ones which are used to kill the process, such as SIGTERM and SIGKILL). This means a process can be killed only on return to user mode. The reason a process cannot be killed in kernel mode is that it could poten...
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What is Mocking?

...r of the object not related to the database and the database stub would be included just to let the test run. If you instead want to verify that the object under test writes some specific data to the database you will have to mock the database. Your test would then incorporate assertions about what ...
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Sending data back to the Main Activity in Android

...ust use the full name: Activity.RESULT_OK. See also Fuller answer that includes passing data forward Naming Conventions for the Key String share | improve this answer | ...
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Should IBOutlets be strong or weak under ARC?

...led in viewDidUnload. But why does Apple’s template for creating outlets include a [self setMySubview:nil]? – Yang Meyer Jan 24 '12 at 8:20 3 ...
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Java8 Lambdas vs Anonymous classes

... class. An AIC can also provide a concrete implementation of an interface, including the addition of state (fields). An instance of an AIC can be referred to using this in its method bodies, so further methods can be called on it, its state can be mutated over time, etc. None of these apply to lambd...
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Multithreading: What is the point of more threads than cores?

...ing more expensive than registers (1 clock) and RAM (5 nanoseconds)) These include disk I/O, network access (latency of 250ms), reading data off a CD or a slow bus, or a database call. Having more threads than cores means useful work can be done while high-latency tasks are resolved. The CPU has a ...
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What does the function then() mean in JavaScript?

...properties. UPDATE (As of ECMAScript6) :- The .then() function has been included to pure javascript. From the Mozilla documentation here, The then() method returns a Promise. It takes two arguments: callback functions for the success and failure cases of the Promise. The Promise object,...
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Is null an Object?

...e, is not exposed to us but via the null literal, is a subtype of any type including multiple inheritance and is to be ignored anyway? Consider also the more practical example: class Car implements Vehicle { ... Vehicle car = null; ... boolean b = car instanceof Car; // True? There's not ev...
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How do I put a bunch of uncommitted changes aside while working on something else

...plicated for just this situation, but it has a broad enough range of uses, including this one, that it's worth while investing the time to become fluent with it. – Norman Gray Jun 20 '14 at 16:41 ...
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URL to load resources from the classpath in Java

...tly what I'm looking for. Can you please share your updates with me? I can include as part of my com.github.fommil.common-utils package that I plan to update and release soon via Sonatype. – fommil Feb 17 '13 at 14:59 ...