if statement
Statement execute set of command like when condition is true and its syntax is
If (condition)
Statement;
The statement is executed only when condition is true. If the if statement body is
consists of several statement then better to use pair of curly braces. Here in case
condition is false then compiler skip the line within the if block.
Example:
void main()
{
int n;
printf (“ enter a number:”);
scanf(“%d”,&n);
If (n>10)
Printf(“ number is grater”);
}
Output:
Enter a number:12
Number is greater
if…..else ... Statement
It is bidirectional conditional control statement that contains one condition & two
possible action. Condition may be true or false, where non-zero value regarded as
true & zero value regarded as false. If condition are satisfy true, then a single or
block of statement executed otherwise another single or block of statement is
executed.
Its syntax is
if (condition)
{
Statement1;
Statement2;
}
else
{
Statement1;
Statement2;
}
Else statement cannot be used without if or no multiple else statement are allowed
within one if statement. It means there must be a if statement with in an else
statement.
Example
/* To check a number is eve or odd */
void main()
{
int n;
printf (“enter a number:”);
sacnf (“%d”, &n);
If (n%2==0)
printf (“even number”);
else
printf(“odd number”);
}
Output:
enter a number:121
odd number
