Question

give the stytax and flowchart of switch statemants​

Answer 1

Answer:

Switch statement in C tests the value of a variable and compares it with multiple cases. Once the case match is found, a block of statements associated with that particular case is executed.

Each case in a block of a switch has a different name/number which is referred to as an identifier. The value provided by the user is compared with all the cases inside the switch block until the match is found.

If a case match is NOT found, then the default statement is executed, and the control goes out of the switch block.

Switch Case Syntax

A general syntax of how switch-case is implemented in a 'C' program is as follows:

switch( expression ) { case value-1: Block-1; Break; case value-2: Block-2; Break; case value-n: Block-n; Break; default: Block-1; Break; } Statement-x;

The expression can be integer expression or a character expression.

Value-1, 2, n are case labels which are used to identify each case individually. Remember that case labels should not be same as it may create a problem while executing a program. Suppose we have two cases with the same label as '1'. Then while executing the program, the case that appears first will be executed even though you want the program to execute a second case. This creates problems in the program and does not provide the desired output.

Case labels always end with a colon ( : ). Each of these cases is associated with a block.

A block is nothing but multiple statements which are grouped for a particular case.