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Jan 02, 2015 C/C software developer offering more than four years of full life cycle experience including planning and assessment, requirements definition, features and functionality design and development, coding, testing, QA, implementation, product and infrastructure enhancements and maintenance. May 26, 2010 Learn to create your first C program using Dev-C.
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An if statement can be followed by an optional else statement, which executes when the Boolean expression is false.
Syntax
The syntax of an if..else statement in C programming language is −
If the Boolean expression evaluates to true, then the if block will be executed, otherwise, the else block will be executed.
C programming language assumes any non-zero and non-null values as true, and if it is either zero or null, then it is assumed as false value.
Flow Diagram
Example
When the above code is compiled and executed, it produces the following result −
If..else if..else Statement
An if statement can be followed by an optional else if..else statement, which is very useful to test various conditions using single if..else if statement.
When using if..else if.else statements, there are few points to keep in mind −
Sample Coding For Dev C Code
An if can have zero or one else's and it must come after any else if's.
An if can have zero to many else if's and they must come before the else.
Once an else if succeeds, none of the remaining else if's or else's will be tested. Daisydisk serial key mac.
Syntax
The syntax of an if..else if..else statement in C programming language is −
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Example
When the above code is compiled and executed, it produces the following result −