Question

the purpose of default statement in switch statement​

Answer 1

Answer:

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What is the purpose of default statement in switch statement in C++? The switch and case keywords evaluate expression and execute any statement associated with constant-expression whose value matches the initial expression.

Explanation:

Answer 2

Answer:

I will not talk about it specific to C++, but I will speak generally for any switch/case statement:

switch( expression )

{

[case constant-expression:]

. . .

[statement]

. . .

[default:

statement]

}

The switch and case keywords evaluate expression and execute any statement associated with constant-expression whose value matches the initial expression.

If there is no match with a constant expression, the statement associated with the default keyword is executed. If the default keyword is not used, control passes to the statement following the switch block.