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Read String line by line
Given a string that isn't too long, what is the best way to read it line by line?
11 Answers
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How to check if a string starts with a specified string? [duplicate]
I'm trying to check if a string starts with http . How can I do this check?
6 Answers
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String variable interpolation Java [duplicate]
String building in Java confounds me. I abhore doing things like:
5 Answers
5
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UILabel with text of two different colors
I want to display a string like this in a UILabel :
20 Answers
20
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Java: convert List to a String
...this without any third party library.
If you want to join a Collection of Strings you can use the new String.join() method:
List<String> list = Arrays.asList("foo", "bar", "baz");
String joined = String.join(" and ", list); // "foo and bar and baz"
If you have a Collection with another typ...
C# Sanitize File Name
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To clean up a file name you could do this
private static string MakeValidFileName( string name )
{
string invalidChars = System.Text.RegularExpressions.Regex.Escape( new string( System.IO.Path.GetInvalidFileNameChars() ) );
string invalidRegStr = string.Format( @"([{0}]*\.+$)...
Using AES encryption in C#
...tatic void Main()
{
try
{
string original = "Here is some data to encrypt!";
// Create a new instance of the RijndaelManaged
// class. This generates a new key and initialization
// vector (IV).
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get dictionary value by key
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It's as simple as this:
String xmlfile = Data_Array["XML_File"];
Note that if the dictionary doesn't have a key that equals "XML_File", that code will throw an exception. If you want to check first, you can use TryGetValue like this:
string xmlfi...
How do I convert a TimeSpan to a formatted string? [duplicate]
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Would TimeSpan.ToString() do the trick for you? If not, it looks like the code sample on that page describes how to do custom formatting of a TimeSpan object.
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Type safety: Unchecked cast
...vailable to the garbage collector. So, don't do that, use:
private Map<String, String> someMap = (HashMap<String, String>)getApplicationContext().getBean("someMap");
Secondly, the compiler is complaining that you cast the object to a HashMap without checking if it is a HashMap. But, e...