Nested switch statement in C++

Last Updated : 08 Feb, 2023

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

// Following is a simple program to demonstrate // syntax of Nested Switch Statements.  #include <iostream> using namespace std;  int main() {     int x = 1, y = 2;      // Outer Switch     switch (x) {      // If x == 1     case 1:          // Nested Switch          switch (y) {          // If y == 2         case 2:             cout << "Choice is 2";             break;          // If y == 3         case 3:             cout << "Choice is 3";             break;         }         break;      // If x == 4     case 4:         cout << "Choice is 4";         break;      // If x == 5     case 5:         cout << "Choice is 5";         break;      default:         cout << "Choice is other than 1, 2 3, 4, or 5";              }     return 0; }

Output:

Choice is 2

Nested switch statement in C++

MinalJain

Improve

Article Tags :

Practice Tags :

Nested switch statement in C++

Similar Reads