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When to use StringBuilder in Java [duplicate]
It is supposed to be generally preferable to use a StringBuilder for string concatenation in Java. Is this always the case?
...
How to parse/format dates with LocalDateTime? (Java 8)
Java 8 added a new java.time API for working with dates and times ( JSR 310 ).
7 Answers
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Python's many ways of string formatting — are the older ones (going to be) deprecated?
...% strings, there's no surviving plan to ever deprecate the latter.
In commit Issue #14123: Explicitly mention that old style % string formatting has caveats but is not going away any time soon., inspired by issue Indicate that there are no current plans to deprecate printf-style formatting, the doc...
Best way to find if an item is in a JavaScript array? [duplicate]
...s:
function include(arr,obj) {
return (arr.indexOf(obj) != -1);
}
EDIT:
This will not work on IE6, 7 or 8 though. The best workaround is to define it yourself if it's not present:
Mozilla's (ECMA-262) version:
if (!Array.prototype.indexOf)
{
Array.prototype.indexOf = function(...
Why should you use an ORM? [closed]
...cess more abstract and portable. ORM implementation classes know how to write vendor-specific SQL, so you don't have to.
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What's the difference between ContentControl and ContentPresenter?
...control templates to display content.
ContentControl, when used directly (it's supposed to be used as a base class), has a control template that uses ContentPresenter to display it's content.
My rules of thumb (not applicable in every case, use your judgment):
Inside ControlTemplate use ContentP...
Enum ToString with user friendly strings
...NotCompleted,
Completed,
Error
};
Then use this code to retrieve it:
public static string GetDescription<T>(this T enumerationValue)
where T : struct
{
Type type = enumerationValue.GetType();
if (!type.IsEnum)
{
throw new ArgumentException("EnumerationValue m...
Replace part of a string with another string
Is it possible in C++ to replace part of a string with another string?
15 Answers
15
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java.lang.NoClassDefFoundError: Could not initialize class XXX
...s an issue here:
static {
//code for loading properties from file
}
It would appear some uncaught exception occurred and propagated up to the actual ClassLoader attempting to load the class. We would need a stacktrace to confirm this though.
Either that or it occurred when creating PropHold...
How to display all methods of an object?
...ined by the browser and most likely enumerable by design.
From ECMA-262 Edition 3:
Global Object
There is a unique global
object (15.1), which is created before
control enters any execution context.
Initially the global object has the
following properties:
• Built-in
object...