04 c] Give the syntax and working of simple if Else.
Answer:-
“The if..else statement is an extension of the simple if statement”
Syntax:-
if (Expression)
{
(true-block;) Statement1;
}
else
{
(false-block;) Statement2;
}
Statement3;
➢ If the Expression is true (or non-zero) then Statement1 will be executed; otherwise, if it is false (or zero), then Statement2 will be executed.
➢ In this case, either true block or false block will be executed, but not both.
➢ This is illustrated in Figure 2. In both cases, the control is transferred subsequently to Statement3.
Flow chart of if-else statement:-
Example:
// Program to display a number if it is negative
#include <stdio.h>
int main()
{
int number;
printf("Enter an integer: ");
scanf("%d", &number);
// true if number is less than 0
if (number < 0) {
printf("You entered %d.\n", number);
}
printf("The if statement is easy.");
return 0;
}