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It takes an expression in parenthesis and a statement or block of statements. If the expression is true then the statement or block of statements gets executed otherwise these statements are skipped.
Different forms of if statement
Form 1
if (expression) statement;
You can use the if statement without braces { } if you have one statement.
Form 2
if (expression) { Block of statements; }
if Statement – Execution Sequence
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Example
/* Global variable definition */ int A = 5 ; int B = 9 ; Void setup () { } Void loop () { /* check the boolean condition */ if (A > B) /* if condition is true then execute the following statement*/ A++; /* check the boolean condition */ If ( ( A < B ) && ( B != 0 )) /* if condition is true then execute the following statement*/ { A += B; B--; } }
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