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Why seal a class?
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Performance is an important factor for example, the string class in java is final(<- sealed) and reason for this is performance only.
I think another important point is to avoid the brittle base class problem described in detail here:
http://blogs.msdn.com/ericlippert/archi...
Convert a JSON String to a HashMap
I'm using Java, and I have a String which is JSON:
18 Answers
18
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How to know that a string starts/ends with a specific string in jQuery?
I want to know if a string starts with the specified character/string or ends with it in jQuery.
6 Answers
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
... the
following code, except that it offers superior performance:
return String.IsNullOrEmpty(value) || value.Trim().Length == 0;
White-space characters are defined by the Unicode standard. The
IsNullOrWhiteSpace method interprets any character that returns a
value of true when it is pas...
How do you copy and paste into Git Bash
...Edit -> Paste which is exactly what I want! No more typing API code manually!
– Trav L
Feb 21 '10 at 1:08
27
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
...b")).ifPresent(this::print);
map() - transform value if present
opt.map(String::trim).filter(t -> t.length() > 1).ifPresent(this::print);
orElse()/orElseGet() - turning empty Optional to default T
int len = opt.map(String::length).orElse(-1);
int len = opt.
map(String::length).
o...
Which CheckedListBox event triggers after a item is checked?
...t sender, ItemCheckEventArgs e)
{
List<string> checkedItems = new List<string>();
foreach (var item in checkedListBox1.CheckedItems)
checkedItems.Add(item.ToString());
if (e.NewValue == CheckState.Checked)
checkedI...
Automatic counter in Ruby for each?
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In this context, the %-sign operator is a method of the String class. You can read about it at ruby-doc.org/core/classes/String.html#M000770. Or you can type ri String#% at a command prompt. Or you can type ri % to see all of the documented classes that recognize it, e.g., the mor...
abort, terminate or exit?
What's the difference between those three, and how shall I end program in case of exception which I can't handle properly?
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How do I implement an Objective-C singleton that is compatible with ARC?
...n;
dispatch_once(&onceToken, ^{
sharedInstance = [[MyClass alloc] init];
// Do any other initialisation stuff here
});
return sharedInstance;
}
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