The if...else
statement executes two different codes depending upon whether the test expression is true or false. Sometimes, a choice has to be made from more than 2 possibilities.
The if…else ladder allows you to check between multiple test expressions and execute different statements.
Syntax of if…else Ladder
if (test expression1) {
// statement(s)
}
else if(test expression2) {
// statement(s)
}
else if (test expression3) {
// statement(s)
}
.
.
else {
// statement(s)
}
Example 3: C if…else Ladder
// Program to relate two integers using =, > or < symbol
#include <stdio.h>
int main() {
int number1, number2;
printf("Enter two integers: ");
scanf("%d %d", &number1, &number2);
//checks if the two integers are equal.
if(number1 == number2) {
printf("Result: %d = %d",number1,number2);
}
//checks if number1 is greater than number2.
else if (number1 > number2) {
printf("Result: %d > %d", number1, number2);
}
//checks if both test expressions are false
else {
printf("Result: %d < %d",number1, number2);
}
return 0;
}
Output
Enter two integers: 12 23 Result: 12 < 23