ITDeveloper : C Programming
C Programming
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break statement in C
The break statement ends the loop immediately when it is encountered. Its syntax is:
break;
The break statement is almost always used with if...else statement inside the loop. It is also used in switch case.
Working of break statement in C
Example 1: break statement
// Program to calculate the sum of numbers (10 numbers max)
// If the user enters a negative number, the loop terminates
#include <stdio.h>
int main() {
int i;
int num, sum = 0.0;
for (i = 1; i <= 10; ++i) {
printf("Enter Number %d : ", i);
scanf("%d", &num);
// if the user enters a negative number, break the loop
if (num < 0) {
break;
}
sum += num; // sum = sum + number;
}
printf("Sum = %d", sum);
return 0;
}
OUTPUT:
Enter Number 1 : 1
Enter Number 2 : 2
Enter Number 3 : 3
Enter Number 4 : 4
Enter Number 5 : 5
Enter Number 6 : -1
Sum = 15
This program calculates the sum of a maximum of 10 numbers. If the user enters a negative number, the break statement is executed. This will end the for loop, and the sum is displayed.
Example 2:
#include<stdio.h>
#include<stdlib.h>
void main ()
{
int i;
for(i = 0; i<10; i++)
{
printf("%d \n",i);
if(i == 5)
break;
}
printf("Out of loop when i = %d",i);
}
OUTPUT:
0
1
2
3
4
5
Out of loop when i = 5
Example 3:
break statement inside the switch case
#include <stdio.h>
void main()
{
char opt;
printf("Enter the option "A", "B", "C" or "D" : ");
scanf( "%c", &opt );
switch (opt)
{
case 'A':
printf( "You have entered option A " );
break;
case 'B':
printf( "You have entered option B " );
break;
case 'C':
printf( "You have entered option C " );
break;
case 'D':
printf( "You have entered option D ");
break;
default:
printf ( "It is Wrong input. You have not entered option A, B, C, or D ");
}
}
OUTPUT 1:
Enter the option "A", “B”, “C” or “D” :A
You have entered option A
OUTPUT 2:
Enter the option "A", “B”, “C” or “D” :E
It is Wrong input. You have not entered option A, B, C, or D