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Base64 Java encode and decode a string [duplicate]
I want to encode a string into base64 and transfer it through a socket and decode it back.
6 Answers
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Regular expression to match balanced parentheses
...)]+|\)(?<-c>))*(?(c)(?!))\)
Where c is used as the depth counter.
Demo at Regexstorm.com
Stack Overflow: Using RegEx to balance match parenthesis
Wes' Puzzling Blog: Matching Balanced Constructs with .NET Regular Expressions
Greg Reinacker's Weblog: Nested Constructs in Regular Expression...
How do I make a textbox that only accepts numbers?
...
protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
NumberFormatInfo fi = CultureInfo.CurrentCulture.NumberFormat;
string c = e.KeyChar.ToString();
if (char.IsDigit(c, 0))
return;
if ((SelectionStart == 0) &...
How to prevent page scrolling when scrolling a DIV element?
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Update 2: My solution is based on disabling the browser's native scrolling altogether (when cursor is inside the DIV) and then manually scrolling the DIV with JavaScript (by setting its .scrollTop property). An alternative and IMO better approach wou...
Android Facebook style slide
...ct.
Also this lib should be compatible this ActionBar pattern, because is based on Activities transactions and TranslateAnimations (not Fragments transactions and custom Views).
Right now, the most problem is to make it work well for application, which support both portrait and landscape mode. If ...
How to add a progress bar to a shell script?
...mplification, but in order to match Daenyth's approach the spinner must be based on \b rather than \r, as it will otherwise only work at the very beginning of a line: while :; do for c in / - \\ \|; do printf '%s\b' "$c"; sleep 1; done; done - or, if displaying the cursor behind the spinner is undes...
From inside of a Docker container, how do I connect to the localhost of the machine?
... submitted on March the 8th, 2019 and will hopefully be merged to the code base. Until then, a workaround is to use a container as described in qoomon's answer.
2020-01: some progress has been made. If all goes well, this should land in Docker 20.04
TLDR
Use --network="host" in your docker run ...
Android Bitmap to Base64 String
How do I convert a large Bitmap (photo taken with the phone's camera) to a Base64 String?
7 Answers
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Check orientation on Android phone
...etOrientation(float[] R, float[] values) computes the device's orientation based on the rotation matrix.
– user1914692
Jul 20 '13 at 23:24
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Set custom HTML5 required field validation message
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You can simply achieve this using oninvalid attribute,
checkout this demo code
<form>
<input type="email" pattern="[^@]*@[^@]" required oninvalid="this.setCustomValidity('Put here custom message')"/>
<input type="submit"/>
</form>
Codepen Demo: https://codepen.io/...