====== SELECT CASE ======
/* Remove the comments after creating content for each section.*/

A conditional branching structure to allow definition of multiple different actions to be taken according to the value of an expression or variable

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**Implemented by:** [[:basics:Dartmouth:sbasic]], [[:basics:ANSI:ansifull]], [[:basics:bwbasic:]], [[:basics:bwbasic:bw32]], [[:basics:msqb:QBasic]], [[:basics:VBDOS:]], [[:basics:FreeBASIC:]], [[:basics:ugBASIC:]], [[:basics:EndBASIC:]]

**With variations:** [[:basics:Gambas:]]

**Also written as: ** 

===== Usage =====
/* For inline examples of syntax, write the keyword between '' and '' (two single quotes) */
SELECT-CASE is not by itself a BASIC keyword, but the most popular name of a multibranch structure which substitutes a possibly long sequence of [[IF]]s and [[ELSE]]s. 

SELECT-CASE is more often found in structured, not numbered-line versions of BASIC, but it might be found in line-numbered BASICs as well. The [[:basics:ansi:ansifull|ANSI Full]] specification has some examples, such as:

<code truebasic>
10 SELECT CASE X
20 CASE IS < 0
30    PRINT X; "is negative"
40 CASE IS > 0
50    PRINT X; "is positive"
60 CASE ELSE
70    PRINT X; "is zero"
80 END SELECT
</code>

==== Variations ====



===== Examples =====
/*
  Below is an example of a code block, using GeSHi syntax highlighting for //gwbasic//. Other styles of interest might be
  //basic4gl//, //blitzbasic//, //freebasic//, //gambas//, //locobasic//, //purebasic//, //qbasic//, //sdlbasic//,
  //thinbasic//, //vb//, //vbnet//, //xbasic// or //zxbasic//. 

  <code gwbasic>
  10 PRINT "HELLO"
  </code>
*/



===== Comments =====
/* Origin of the keyword, opinions, history... */


===== Related keywords =====
/* Keywords that are often or always used along this one */
  * [[CASE]]
  * [[ELSE]]
  * [[ENDSELECT]], [[END SELECT]] and [[ENDCASE]]

===== Similar keywords =====
/* Keywords with the same or similar functionality found in other versions of BASIC */
  * [[CASE]]
  * [[IF]], [[ELSE]], [[ELSEIF]]

===== In other languages... =====
/* For parallels and comparisons with other modern-day languages */

The SELECT-CASE structure is very similar to the //switch...case// structure found in C and descendents such as PHP, Java, Javascript. Tcl also has a //switch// command which dispenses the //case// keyword and basically works with string comparison only.

Python had to wait until version 3.10.6 to have a similar structure, //match...case//.

===== References =====
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{{tag>Statements Branching Decision "Program Flow" Structured}}