SWITCH-CASE STATEMENT

SWITCH-CASE STATEMENT

Switch Statements

The switch and case statements help control complex conditional and branching operations. The switch statement transfers control to a statement within its body.
Syntax:
The general form of a switch statement is:

switch (variable)

{
    case expression1:
        do something 1;
        break;
    case expression2:
        do something 2;
        break;
      ....
    default:
        do default processing;
}

Example :

#include<stdio.h>

 

main()

{

    int x;

 

    printf("Enter the any number");

    scanf("%d", &x);

 

    switch(x)

{

 case 1:

    printf("I am in Case one");

    break;

 case 2:

    printf("I am in case two");

    break;

 case 3:

    printf("I am in case three");

    break;

 default:

    printf(" I am in Default");

}

}

 

In above program if we enter 1 value in x then the output will be:

I am in Case one

When an expression is found that is equal to the tested variable, execution continues until a break statement is encountered. It is possible to have a case without a break. This causes execution to fall through into the next case. This is sometimes very useful.