What is the syntax of IF-THEN statement?

What is the syntax of IF-THEN statement?

Syntax. IF (a <= 20) THEN c:= c+1; END IF; If the Boolean expression condition evaluates to true, then the block of code inside the if statement will be executed. If the Boolean expression evaluates to false, then the first set of code after the end of the if statement (after the closing end if) will be executed.

What is if-then statement explain with example?

If the following statements are true: If we turn of the water (p), then the water will stop pouring (q). If the water stops pouring (q) then we don’t get wet any more (r). Then the law of syllogism tells us that if we turn of the water (p) then we don’t get wet (r) must be true.

What is if/then structure?

Sentence formation. 3 minutes. Jun 14, 2019. Conditional sentences are statements of an “if-then” or “unless-then” situation (although “then” is not used), or a probability. These sentences present situations and their possible outcomes.

How do you write an if-then formula in Excel?

Use the IF function, one of the logical functions, to return one value if a condition is true and another value if it’s false. For example: =IF(A2>B2,”Over Budget”,”OK”) =IF(A2=B2,B4-A4,””)

What is the syntax of the if statement in C?

An if statement can be followed by an optional else statement, which executes when the Boolean expression is false. 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.

What is the multiline syntax for IF THEN ELSE?

Multiline syntax. When an If…Then…Else statement is encountered, condition is tested. If condition is True, the statements following Then are executed. If condition is False, each ElseIf statement (if there are any) is evaluated in order.

Can a else statement be after an IF statement?

You can have as many ElseIf clauses as you want in an If…Then…Else statement, but no ElseIf clause can appear after an Else clause. If…Then…Else statements can be nested within each other. In the multiline syntax, the If statement must be the only statement on the first line.

Is there an alternative to if statement in Python?

A final alternative for if statements: if-elif-…. with no else. This would mean changing the syntax for if – elif – else above so the final else: and the block after it would be omitted. It is similar to the basic if statement without an else , in that it is possible for no indented block to be executed.