Every programming language provides a structure for decision making. 'C' also provides this structure. The statement used for decisions in 'C' language is known as the 'if statement'. The if statement has a simple structure. That is if ( condition ) Statement (or group of statements) We explain it as if condition is true, then execute the statement or a group of statements. Here the condition is a statement which explains the condition on which a decision will be made. We can understand it from the example that Ali can become the member of the basket ball team if he has a height more than six feet .In this case, the condition will be if (Ali’s height is greater than six feet) Ali can be a member of team We have written the condition in English language. Now let's see how we can implement this in terms of variables, operators and C statements. In the program, we will write the condition in parentheses, followed by a statement or group of statements to be executed. Now here is the concept of block of statements. We use braces { } to make a group (block) of a number of statements. We put ‘{’ before first statement and ‘}’ after the last statement. Thus if we have to do many things after the if statement. The structure of if statement becomes as under
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