What is C++ Switch?
Switch case statements are a substitute for long if statements that compare a variable to several integer of character. The constant-expression for a case must be the same data type as the variable in the switch, and it must be a constant.Switch Statement Flow Diagram
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| Switch Statement Flow Diagram |
Syntax:
switch(expression) {
case
constant-expression :
statement(s);
break; //optional
case
constant-expression :
statement(s);
break; //optional
// you can have any
number of case statements.
default : //Optional
statement(s);
}
Example:
#include <iostream>
using namespace std;
int main()
{
int number = 2;
switch (number) // expression
{
case 1: cout<<"Choice is
1"; // case 1 condition
break;
case 2: cout<<"Choice is
2"; // case 2 condition
break;
case 3: cout<<"Choice is
3"; // case 3 condition
break;
// deafult output
// deafult output
default: cout<<"Choice other
than 1, 2 and 3";
break;
}
return 0;
}
Output:
