What is switch case?

Answer 1

switch (expression)

{

case constant-value1:

statements

break [optional];

case constant-value2:

statements

break [optional];

.

.

.

default:

statements;

}

Answer 2

The switch statement is a form of flow control, often used to replace repetitive if-else blocks. It takes a single integral value and performs a series of comparisons against programmer-supplied values. As soon as one of the values matches, execution of supplied code begins.

As an example, let's look at a common use for switch blocks: testing a char (an integral value) to see what type of value it contains. We'll test for consonants, vowels, and mathematical operators.

char ch;

// if-else solution

if(ch '*') {

printf("operator\n");

}else if(ch 'u') {

printf("vowel\n");

}else {

printf("consonant\n");

}

// switch solution

switch(ch) {

// Note the syntax of the case lines - case value colon

case '+':

case '-':

case '/':

case '*':

printf("operator\n");

break

// Also note the break statement. Without it, any operator matches

// would "fall through" to the next printf statement.

case 'a':

case 'e':

case 'i':

case 'o':

case 'u:

printf("vowel\n");

break;

// The default keyword specifies what action should be taken if no

// matches have been made.

default:

printf("consonant\n");

}

Answer 3

Switch case is a condition statement used for performing specific tasks based on specific value of the expression. The general syntax of switch is:

switch(expression){

case value1: statements; break;

case value2: statements; break;

.

.

case valueN: statements; break;

default: statements;

}

The break statements are essential after every statement, otherwise all the other cases starting from the matched case will be executed till break is encountered. The default statement is executed when none of the cases match.

Answer 4

we use case statement in c for a particulAR reson case is also work as a switch ststement

Answer 5

Keywords.