Switch Statement in C.
- The switch statement is similar to if statement but case check is done instead of checking the condition.
- When you come to a particular case, you write the statements that you want to execute inside the case.
- Case is matched to an integer variable.
- The same case goes to the execute case which matches the integer variable
Syntax :-
int caseNumber = n;
switch(caseNumber)
{
case 1:
/* Statements to be executed if caseNumber is 1 */
break;
case 2:
/* Statements to be executed if caseNumber is 2 */
break;
default:
/* Statements to be executed if caseNumber is not 1 & 2 */
break;
}
- When you set the caseNumber variable with an integer value and pass it in the switch statement, the same number that matches this number will be executed.
- For example, if you have passed 2 in case number then the case of second number will execute and all statements before the break will be executed.
- If a case does not match then the default case is execute.
- If after each case the break statement is used then all the cases will be executed.
- You can also define the case with alphabets.
EXAMPLE :-
// Switch Statement in C.
#include <stdio.h>
void main()
{
int caseNumber;
printf("Enter a number : ");
scanf("%d",&caseNumber);
/* Passing the case number to switch to execute desired case */
switch(caseNumber)
{
case 1:
printf("\n First Switch Case executed..");
break;
case 2:
printf("\n Second Switch Case executed..");
break;
case 3:
printf("\n Third Switch Case executed..");
break;
case 4:
printf("\n Fourth Switch Case executed..");
break;
default:
printf("\n You can only enter 1,2,3 and 4");
break;
}
}
OUTPUT
Third Switch Case executed..
