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Finding out whether a string is numeric or not
How can we check if a string is made up of numbers only. I am taking out a substring from a string and want to check if it is a numeric substring or not.
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How do I get a consistent byte representation of strings in C# without manually specifying an encodi
How do I convert a string to a byte[] in .NET (C#) without manually specifying a specific encoding?
40 Answers
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How to generate a random alpha-numeric string?
...ng for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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Reading Excel files from C#
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var fileName = string.Format("{0}\\fileNameHere", Directory.GetCurrentDirectory());
var connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);
var adapter = new OleD...
How to read keyboard-input?
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always put an space after your string for the user to enter his input if peace. Enter Tel12340404 vs Enter Tel: 12340404. see! :P
– Mehrad
May 6 '14 at 0:10
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How to get the first element of the List or Set? [duplicate]
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In Java >=8 you could also use the Streaming API:
Optional<String> first = set.stream().findFirst();
(Useful if the Set/List may be empty.)
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How can I check if a string is null or empty in PowerShell?
Is there a built-in IsNullOrEmpty -like function in order to check if a string is null or empty, in PowerShell?
11 Answers...
Replace Line Breaks in a String C#
How can I replace Line Breaks within a string in C#?
17 Answers
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How can I String.Format a TimeSpan object with a custom format in .NET?
What is the recommended way of formatting TimeSpan objects into a string with a custom format?
19 Answers
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Java: Get last element after split
I am using the String split method and I want to have the last element.
The size of the Array can change.
12 Answers
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