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Does the default constructor initialize built-in types?

...erformed by other means. Not by default constructor, nor by constructor at all. For example, there's a widespread incorrect belief that for class C the syntax C() always invokes default constructor. In reality though, the syntax C() performs so called value-initialization of the class instance. It...
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Performing Breadth First Search recursively

...tion, but I suppose I could imagine some bizarre scenario where you're not allowed any heap space for some reason [some really bad custom memory manager? some bizarre runtime/OS issues?] while you still have access to the stack...) Breadth-first traversal traditionally uses a queue, not a stack. T...
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Intent - if activity is running, bring it to front, else start a new one (from notification)

...recent task and click it, it will onResume(); Cant I onResume() programatically. – user9599745 Jan 29 at 20:58 @Javene...
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source command not found in sh shell

... /bin/sh is usually some other shell trying to mimic The Shell. Many distributions use /bin/bash for sh, it supports source. On Ubuntu, though, /bin/dash is used which does not support source. Most shells use . instead of source. If you can...
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How to stop Gradle task execution in Android Studio?

... you can call ./gradlew --stop in a Terminal and it will kill all gradle processes share | improve this answer | ...
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When should I use uuid.uuid1() vs. uuid.uuid4() in python?

...d4() generates, as you said, a random UUID. The chance of a collision is really, really, really small. Small enough, that you shouldn't worry about it. The problem is, that a bad random-number generator makes it more likely to have collisions. This excellent answer by Bob Aman sums it up nicely. (I...
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Is there a method to generate a UUID with go language

...ic range. rand.Read returns random bytes in the range 0-255, which are not all valid values for a UUID. As far as I can tell, this should be done for all the values in the slice though. If you are on linux, you can alternatively call /usr/bin/uuidgen. package main import ( "fmt" "log" ...
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How do I fix the indentation of an entire file in Vi?

In Vim, what is the command to correct the indentation of all the lines? 16 Answers 16...
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Android Studio: Android Manifest doesn't exists or has incorrect root tag

... Thanks. Hope all the answers keep helping people. – axierjhtjz Sep 26 '14 at 16:04 4 ...
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What are the -Xms and -Xmx parameters when starting JVM?

... The flag Xmx specifies the maximum memory allocation pool for a Java virtual machine (JVM), while Xms specifies the initial memory allocation pool. This means that your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of ...