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Maximum Java heap size of a 32-bit JVM on a 64-bit OS
...JVM can allocate up to 1577MiB:
[C:scratch]> java -Xmx1600M MaxMemory
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
[C:scratch]> java -Xmx1590M MaxMemory
Total Memory: 2031616 (1.9375 MiB)
Max Memory: 16...
Android emulator and virtualbox cannot run at same time
...ox running, I cannot start an Android emulator image (and vice versa). The error message in the AVD manager is
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Relationship between hashCode and equals method in Java [duplicate]
...t is: objects which are .equals() MUST have the same .hashCode().
This is all documented in the javadoc for Object. And Joshua Bloch says you must do it in Effective Java. Enough said.
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Why am I getting error for apple-touch-icon-precomposed.png
...con.png and upload it to the root directory of the server. After that, the error should be gone.
I noticed lots of requests for apple-touch-icon-precomposed.png and apple-touch-icon.png in the logs that tried to load the images from the root directory of the site. I first thought it was a miscon...
How can I merge properties of two JavaScript objects dynamically?
...Later properties overwrite earlier properties with the same name. */
const allRules = {...obj1, ...obj2, ...obj3};
Here is also the MDN documentation for this syntax. If you're using babel you'll need the babel-plugin-transform-object-rest-spread plugin for it to work.
ECMAScript 2015 (ES6) Stand...
How to run only one local test class on Gradle
...this answer, as the --tests argument will be unsupported and you'll get an error.
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Where is Erlang used and why? [closed]
...ken live with full access to any process' running state. Also the built-in error reporting tools are very useful (but sometimes somewhat awkward to use).
Of course I could talk about its functional roots but this aspect is somewhat orthogonal to the main goal (high availability). The main compone...
source of historical stock data [closed]
... Dividend/Share
d1 Last Trade Date
d2 Trade Date
e Earnings/Share
e1 Error Indication (returned for symbol changed / invalid)
e7 EPS Estimate Current Year
e8 EPS Estimate Next Year
e9 EPS Estimate Next Quarter
f6 Float Shares
g Day's Low
h Day's High
j 52-week Low
k 52-week High
g1...
Two way sync with rsync
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unison -auto dirA/ dirB/
unison -batch dirA/ dirB/ asks no questions at all, and writes to output how many files were ignored (because they conflicted).
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How do you loop in a Windows batch file?
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Conditionally perform a command several times.
syntax-FOR-Files
FOR %%parameter IN (set) DO command
syntax-FOR-Files-Rooted at Path
FOR /R [[drive:]path] %%parameter IN (set) DO command
syntax-FOR-Folders
FOR /D %%paramete...