switch statement

How switch statement work in C++ language

The switch is multiple conditional statements in C++ language and further used to execute the code from multiple conditions or case. This is also same as if-else-if ladder statement. This statement work with byte, short, int, char and primitive, enumerated data types and with string also.

Syntax for using switch statement:

switch(expression/variable)

{

case  value-1:   

     //statement-1;

     //statement-2;

     ..

     //statement-n;

     break;  //optional

case  value-2:   

     //statement-1;

     //statement-2;

     ..

     //statement-n;

     break;  //optional

case  value-n:   

     //statement-1;

     //statement-2;

     ..

     //statement-n;

     break;  //optional

default: //optional

     //statements

}

Rules for apply switch statement in C++ language:

• We can not use float data type switch statement.
• The expression in switch statement must be of any type like integer or character.
• The value for a case in a switch case must be same as the variable in switch statement.
• We use only  byte, short, int, char, enumerated data types and string with switch statement.
• In a single switch statement, we can use any number of case statements but it can be used only inside the switch statement.

Thanks

Mukesh Rajput