Difference between revisions of "Literals"
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| − | + | ==List of Literals== | |
| + | The following table lists all available literals | ||
| + | {| {{TableHeader}} | ||
| + | |- {{TableHeaderRow}} | ||
| + | | '''Data Type''' || '''Literal''' || '''Sample''' | ||
| + | |- {{TableRow1}} | ||
| + | | '''[[Boolean]]''' || <tt><nowiki>{True|False}</nowiki></tt> || <tt>Boolean flag = True;</tt> | ||
| + | |- {{TableRow2}} | ||
| + | | '''[[Integer]]''' || Integer number || <tt>Integer n = 1;<br/>m = n - 1234;</tt> | ||
| + | |- {{TableRow1}} | ||
| + | | '''[[Float]]''' || Floating-point number || <tt>Float n = 1.2;<br/>m = n + 12.345;</tt> | ||
| + | |- {{TableRow2}} | ||
| + | | '''[[String]]''' || Quoted sequence of characters || <tt>String str = "This is a text"<br/>str = StringConcatenate(str, " definded as a literal in OTX.");</tt> | ||
| + | |- {{TableRow1}} | ||
| + | | '''[[ByteField]]''' || Sequence of bytes in hex started with a & || <tt>ByteField bytes1 = &12 34 56 78 90 AB CD EF<br/>ByteField bytes2 = &1234567890ABCDE; // equals &01 23 45 67 89 0A BC DE</tt> | ||
| + | |} | ||
Revision as of 14:51, 15 July 2014
Description
A literal is a notation for representing a fixed value in source code. Almost all programming languages have notations for atomic values such as integers, floating-point numbers, and strings, booleans and characters.
Literals are often used to initialize variables, for example, in the following, '1' is an IntegerLiteral which is assigned to a new created variable 'a' of data type Integer. And the three letter string in "cat" is a StringLiteral, which is assigned to a new created variable 's' of data type String.
Integer a = 1;
String s = "cat";List of Literals
The following table lists all available literals
| Data Type | Literal | Sample |
| Boolean | {True|False} | Boolean flag = True; |
| Integer | Integer number | Integer n = 1; m = n - 1234; |
| Float | Floating-point number | Float n = 1.2; m = n + 12.345; |
| String | Quoted sequence of characters | String str = "This is a text" str = StringConcatenate(str, " definded as a literal in OTX."); |
| ByteField | Sequence of bytes in hex started with a & | ByteField bytes1 = &12 34 56 78 90 AB CD EF ByteField bytes2 = &1234567890ABCDE; // equals &01 23 45 67 89 0A BC DE |
