Give the syntax and working of simple if Else.

04 c] Give the syntax and working of simple if Else.


“The if..else statement is an extension of the simple if statement”


if (Expression)
(true-block;) Statement1;
(false-block;) Statement2;

➢ 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:-

Flow chart of if-else statement


// 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;

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