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The null/empty char is simply a value of zero, but can also be represented as a character with an escaped zero. Yes, and there is no "empty char". '\0' is the null char which has nothing to do with NULL ; the null char is simply a char having 0 as numeric code.
An empty string has a single element, the null character, '\0' . That's still a character, and the string has a length of zero, but it's not the same as a null string, which has no characters at all. As an example: char name[32];
An empty char value does not belong to any char, so Java gives a compile-time error. To create an empty char, we either can assign it a null value \0 or default Unicode value \u0000 . The \u0000 is a default value for char used by the Java compiler at the time of object creation.
To check if a given string is empty or not, we can use the strlen() function in C. The strlen() function takes the string as an argument and returns the total number of characters in a given string, so if that function returns 0 then the given string is empty else it is not empty.
There's no such thing as an empty char. The closest you can get is '\0', the Unicode "null" character. Given that you can embed that within string literals or express it on its own very easily, why would you want a separate field for it? Equally, the "it's easy to confuse "" and " "" arguments don't apply for '\0'.
If you could give an example of where you'd want to use it and why you think it would be better, that might help...
The reason for this usage was this:
myString.Replace ('c', '')So remove all instances of'c'from myString.
To remove a specific char from a string you can use the string overload:
myString = myString.Replace ("c", String.Empty);
Your statement
myString.Replace ('c', '\0')
Won't remove any characters. It will just replace them with '\0' (End-Of-String, EOS), with varying consequences. Some string operations might stop when encountering an EOS but in .NET most actions will treat it like any other char. Best to avoid '\0' as much as possible.
A char, unlike a string, is a discrete thing with a fixed size. A string is really a container of chars.
So, Char.Empty doesn't really make sense in that context. If you have a char, it's not empty.
There's no such thing as an empty character. It always contains something. Even '\0' is a character.
Use Char.MinValue which works the same as '\0'. But be careful it is not the same as String.Empty.
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