Strings are a Reference type and are central to most programming tasks. Strings are assigned text, even if the text happens to be numeric. Strings can be zero-length, or any length up to 2GB. Modern versions of VBA store Strings internally using a Byte array of Multi-Byte Character Set bytes (an ...
The term literal is commonly used to describe a sequence of characters in a C code that designates a constant value such as a number (e.g. 0) or a string (e.g. "C"). Strictly speaking, the standard uses the term constant for integer constants, floating constants, enumeration constants ...
VBA will implicitly convert some types to string as necessary and without any extra work on the part of the programmer, but VBA also provides a number of explicit string conversion functions, and you can also write your own.
Three of the most frequently used functions are CStr, Format and StrConv...
When you need to check for the presence or position of a substring within a string, VBA offers the InStr and InStrRev functions that return the character position of the substring in the string, if it is present.
VBA has built-in functions for extracting specific parts of strings, including:
Left/Left$
Right/Right$
Mid/Mid$
Trim/Trim$
To avoid implicit type conversion onverhead (and therefore for better performance), use the $-suffixed version of the function when a string variable is passed to th...
A string's length can be measured in two ways: The most frequently used measure of length is the number of characters using the Len functions, but VBA can also reveal the number of bytes using LenB functions. A double-byte or Unicode character is more than one byte long.
Strings can be concatenated, or joined together, using one or more concatenation operator &.
String arrays can also be concatenated using the Join function and providing a string (which can be zero-length) to be used between each array element.
There are times you need to assign a string variable with a specific character repeated a specific number of times. VBA provides two main functions for this purpose:
String/String$
Space/Space$.
If you are creating a dynamic string, It is a good practice to opt for StringBuilder class rather than joining strings using + or Concat method as each +/Concat creates a new string object everytime it is executed.
io:format(FormatString, Args) % write to standard output
io:format(standard_error, FormatString, Args) % write to standard error
io:format(F, FormatString, Args) % write to open file
io_lib:format(FormatString, Args) % return an iolist
List of string functions (Alphabetically sorted):
Ascii
Char
Charindex
Concat
Difference
Format
Left
Len
Lower
Ltrim
Nchar
Patindex
Quotename
Replace
Replicate
Reverse
Right
Rtrim
Soundex
Space
...
The annotations package includes a number of useful metadata annotations you can decorate your own code with, to help catch bugs.
Just add the dependency in the build.gradle file.
dependencies {
compile 'com.android.support:support-annotations:25.3.1'
}
This section provides an overview of what string is, and why a developer might want to use it.
It should also mention any large subjects within string, and link out to the related topics. Since the Documentation for string is new, you may need to create initial versions of those related topics.
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