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How to replace multiple white spaces with one white space
...u mean any whitespace, that's a different matter. Should all whitespace be converted to spaces? What should happen to space at the start and end?
For the benchmark below, I've assumed that you only care about spaces, and you don't want to do anything to single spaces, even at the start and end.
No...
How do I invoke a Java method when given the method name as a string?
...an.Dog";
Class<?> dogClass = Class.forName(dogClassName); // convert string classname to class
Object dog = dogClass.newInstance(); // invoke empty constructor
String methodName = "";
// with single parameter, return void
methodName = "setName";
...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...array.
Dereferencing the pointer at a location beyond the end of an array.
Converting pointers to objects of incompatible types
Using memcpy to copy overlapping buffers.
Buffer overflows
Reading or writing to an object or array at an offset that is negative, or beyond the size of that object (stac...
Print text instead of value from C enum
...ave human-readable strings for these, you will need to define functions to convert from enumerations to strings.
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How can I pad a String in Java?
...
Something simple:
The value should be a string. convert it to string, if it's not. Like "" + 123 or Integer.toString(123)
// let's assume value holds the String we want to pad
String value = "123";
Substring start from the value length char index until end length of pad...
Format a datetime into a string with milliseconds
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agree with @cabbi, there's no need to convert back and forth with string and int
– caoanan
May 21 '18 at 3:15
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What is object slicing?
... also to the copy constructor). This works because an instance of B can be converted to a const A&, which is what assignment operators and copy-constructors expect their arguments to be.
The benign case
B b;
A a = b;
Nothing bad happens there - you asked for an instance of A which is a copy ...
How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
... by using static_assert and some TMP to detect when Tail is not implicitly convertible to T, and then using T(tail)..., but that is left as an exercise for the reader :)
– Pavel Minaev
May 24 '11 at 17:46
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Natural Sort Order in C#
...+
"bjEyKsKtbjEzKsSwKg==";
string[] fileNames = Encoding.UTF8.GetString(Convert.FromBase64String(encodedFileNames))
.Replace("*", ".txt?").Split(new[] { "?" }, StringSplitOptions.RemoveEmptyEntries)
.Select(n => expand(n)).ToArray();
...
Why the switch statement cannot be applied on strings?
...cpp/cpp_mfc/article.php/c4067/Switch-on-Strings-in-C.htm
Uses two maps to convert between the strings and the class enum (better than plain enum because its values are scoped inside it, and reverse lookup for nice error messages).
The use of static in the codeguru code is possible with compiler su...