Break in C switch case
In general, the Switch case statement evaluates an expression, and depending on the value of the expression, it executes the statement associated with the value. Not only that, all the cases after the matching case after the matching case will also be executed. To prevent that, we can use the break statement in the switch case as shown:
Syntax of break in switch case
switch(expression)
{
case value1:
statement_1;
break;
case value2:
statement_2;
break;
.....
.....
case value_n:
statement_n;
break;
default:
default statement;
}
Example of break in switch case
C
// C Program to demonstrate working of break with switch// case#include <stdio.h>#include <stdlib.h>int main(){ char c; float x, y; while (1) { printf("Enter an operator (+, -), if want to exit " "press x: "); scanf(" %c", &c); // to exit if (c == 'x') exit(0); printf("Enter Two Values:\n "); scanf("%f %f", &x, &y); switch (c) { // For Addition case '+': printf("%.1f + %.1f = %.1f\n", x, y, x + y); break; // For Subtraction case '-': printf("%.1f - %.1f = %.1f\n", x, y, x - y); break; default: printf( "Error! please write a valid operator\n"); } }} |
Output:
Enter an operator (+, -), if want to exit press x: + Enter Two Values: 10 20 10.0 + 20.0 = 30.0
Break Statement in C
The break statement is one of the four jump statements in the C language. The purpose of the break statement in C is for unconditional exit from the loop