Nested switch statement in C++
Switch-case statements: These are a substitute for long if statements that compare a variable to several integral values
- The switch statement is a multiway branch statement. It provides an easy way to dispatch execution to different parts of code based on the value of the expression.
- Switch is a control statement that allows a value to change control of execution.
Syntax:
switch (n)
{
case 1: // code to be executed if n = 1;
break;
case 2: // code to be executed if n = 2;
break;
default: // code to be executed if
// n doesn't match any cases
}
Nested-Switch Statement: Nested-Switch statements refers to Switch statements inside of another Switch Statements. Syntax:
switch(n)
{
// code to be executed if n = 1;
case 1:
// Nested switch
switch(num)
{
// code to be executed if num = 10
case 10:
statement 1;
break;
// code to be executed if num = 20
case 20:
statement 2;
break;
// code to be executed if num = 30
case 30:
statement 3;
break;
// code to be executed if n
// doesn't match any cases
default:
}
break;
// code to be executed if n = 2;
case 2:
statement 2;
break;
// code to be executed if n = 3;
case 3:
statement 3;
break;
// code to be executed if n doesn't match any cases
default:
}
Example:
CPP
#include <iostream>
using namespace std;
int main()
{
int x = 1, y = 2;
switch (x) {
case 1:
switch (y) {
case 2:
cout << "Choice is 2";
break ;
case 3:
cout << "Choice is 3";
break ;
}
break ;
case 4:
cout << "Choice is 4";
break ;
case 5:
cout << "Choice is 5";
break ;
default :
cout << "Choice is other than 1, 2 3, 4, or 5";
}
return 0;
}
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Last Updated :
08 Feb, 2023
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