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Map to String in Java
...n(map) in Java, I get a nice output in stdout. How can I obtain this same string representation of a Map in a variable without meddling with standard output? Something like String mapAsString = Collections.toString(map) ?
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Format Instant to String
I'm trying to format an Instant to a String using the new java 8 time-api and a pattern:
7 Answers
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Download file of any type in Asp.Net MVC using FileResult?
...te[] fileBytes = System.IO.File.ReadAllBytes(@"c:\folder\myfile.ext");
string fileName = "myfile.ext";
return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);
}
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How to use double or single brackets, parentheses, curly braces
...$default}
hello
and several more
Also, brace expansions create lists of strings which are typically iterated over in loops:
$ echo f{oo,ee,a}d
food feed fad
$ mv error.log{,.OLD}
(error.log is renamed to error.log.OLD because the brace expression
expands to "mv error.log error.log.OLD")
$ for ...
Check time difference in Javascript
...8800000 => hh = 8, mm = 0, ss = 0, msec = 0
You can convert time as string to 24-hour format like this:
function parseTime(s) {
var part = s.match(/(\d+):(\d+)(?: )?(am|pm)?/i);
var hh = parseInt(part[1], 10);
var mm = parseInt(part[2], 10);
var ap = part[3] ? part[3].toUpper...
Java / Android - How to print out a full stack trace?
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There's overrides of all the log methods with (String tag, String msg, Throwable tr) signatures.
Passing an exception as the third parameter should give you the full stacktrace in logcat.
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Calling a function of a module by using its name (a string)
What is the best way to go about calling a function given a string with the function's name in a Python program. For example, let's say that I have a module foo , and I have a string whose content is "bar" . What is the best way to call foo.bar() ?
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Expansion of variables inside single quotes in a command in Bash
...relevant: Which characters need to be escaped in bash?
Do not concatenate strings interpreted by a shell
You should absolutely avoid building shell commands by concatenating variables. This is a bad idea similar to concatenation of SQL fragments (SQL injection!).
Usually it is possible to have pl...
Convert object to JSON in Android
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Most people are using gson : check this
Gson gson = new Gson();
String json = gson.toJson(myObj);
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Add characters to a string in Javascript
I need to add in a For Loop characters to an empty string. I know that you can use the function concat in Javascript to do concats with strings
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