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Hash String via SHA-256 in Java
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This is already implemented in the runtime libs.
public static String calc(InputStream is) {
String output;
int read;
byte[] buffer = new byte[8192];
try {
MessageDigest digest = MessageDigest.getInstance("SHA...
Why do results vary based on curly brace placement?
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@SeanMcMillan I've definetly read articles about it but I can't seem to find any of them from a quick search. I remember that putting return /* and then */{ would effectively comment out the hidden semi-colon in older versions of chrome. Not sure if tha...
Python Unicode Encode Error
I'm reading and parsing an Amazon XML file and while the XML file shows a ' , when I try to print it I get the following error:
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Rails CSRF Protection + Angular.js: protect_from_forgery makes me to log out on POST
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I think reading CSRF-value from DOM is not a good solution, it's just a workaround.
Here is a document form angularJS official website http://docs.angularjs.org/api/ng.$http :
Since only JavaScript that runs on your domain could re...
PHP - concatenate or directly insert variables in string
...uch a case (Variable interpolation), which I find easier to both write and read.
The result will be the same; and even if there are performance implications, those won't matter 1.
As a sidenote, so my answer is a bit more complete: the day you'll want to do something like this:
echo "Welcome $na...
What is Unicode, UTF-8, UTF-16?
...he beginning of a data stream which indicates endianness. Thus, if you are reading UTF-16 input, and no endianness is specified, you must check for this.
As can be seen, UTF-8 and UTF-16 are nowhere near compatible with each other. So if you're doing I/O, make sure you know which encoding you are ...
What is the difference between MOV and LEA?
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The instruction MOV reg,addr means read a variable stored at address addr into register reg. The instruction LEA reg,addr means read the address (not the variable stored at the address) into register reg.
Another form of the MOV instruction is MOV reg,immdata...
Naming conventions for java methods that return boolean(No question mark)
...n be found in the JDK:
isEmpty()
hasChildren()
That way, the names are read like they would have a question mark on the end.
Is the Collection empty?
Does this Node have children?
And, then, true means yes, and false means no.
Or, you could read it like an assertion:
The Collection ...
Set environment variables from file of key/value pairs
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Although reading the file line-by-line and passing each line to export is not ideal, the problem can also be fixed by simply using input redirection on the loop: while read line; do ... ; done < ./conf/$1.
– c...
When to encode space to plus (+) or %20?
...rt" it but what does that mean? It's either the server or client code that reads the query string and decodes it, not the browser. The browser simply passes it back and forth, and since the + is a reserved character it will be preserved by the browser.
– Dave Van den Eynde
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