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How to hash some string with sha256 in Java?
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You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(...
Environment variable substitution in sed
If I run these commands from a script:
10 Answers
10
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Get array of object's keys
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And what about mobile browsers ?
– Marwen Trabelsi
Aug 7 '14 at 8:15
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Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
...alled my older versions of Ruby, removed all of my gems
(including Rails), and installed Ruby 2.0. In other words, a totally clean re-install. Upon starting IRB, I received this message:
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How to force cp to overwrite without confirmation
I'm trying to use the cp command and force an overwrite.
16 Answers
16
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Git hangs while writing objects
I'm trying to git push -u origin master And it just hangs at
9 Answers
9
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How to assign name for a screen? [closed]
I'm using the screen multiplexer tool on the command shell and open a lot of screens. I then forget which process ID associates with which task.
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Java dynamic array sizes?
...e it needs to grow in size. When it does you'll have to allocate a new one and copy the data from the old to the new:
int[] oldItems = new int[10];
for (int i = 0; i < 10; i++) {
oldItems[i] = i + 10;
}
int[] newItems = new int[20];
System.arraycopy(oldItems, 0, newItems, 0, 10);
oldItems = ...
Sending Arguments To Background Worker?
...e = 123;
bgw1.RunWorkerAsync(argument: value); // the int will be boxed
and then
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
int value = (int) e.Argument; // the 'argument' parameter resurfaces here
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// and to transport a result back to the main thread
dou...
How to debug JavaScript / jQuery event bindings with Firebug or similar tools?
...need to debug a web application that uses jQuery to do some fairly complex and messy DOM manipulation. At one point, some of the events that were bound to particular elements, are not fired and simply stop working.
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