What is if/then else loop?

What is if/then else loop?

The If...Then... Else statement allows conditional execution based on the evaluation of an expression. ... The thenpart is executed if condition is true; if condition is false, then elsepart is executed. If the Else clause is not present, control passes to the next statement in the program.

What type of statement is if/then else?

conditional statement The if / then statement is a conditional statement that executes its sub-statement, which follows the then keyword, only if the provided condition evaluates to true: if x < 10 then x := x+1; In the above example, the condition is x < 10 , and the statement to execute is x := x+1 .

What is difference between IF THEN and ELSE IF THEN?

"if/then" lets you test a condition and provide instructions for when the test is true. "if/else" lets you test a condition and provide instructions for when the test is true AND when it is false.

How if/then else is executed?

The IF statement evaluates the given conditional expression. If the result is true (i.e. nonzero), then the statements following the tag are executed. If the result is false, those statements are skipped and control falls to the next statement after the closing tag.

Which loop is guaranteed to execute at least one time?

while loop while loop is guaranteed to execute at least one time.

What is IF-THEN statement in computer?

An if statement is a programming conditional statement that, if proved true, performs a function or displays information. ... In the example above, if the value of X were equal to any number less than 10, the program displays, "Hello John" when the script is run.

Can Excel DO IF THEN statements?

The IF-THEN function in Excel is a powerful way to add decision making to your spreadsheets. It tests a condition to see if it's true or false and then carries out a specific set of instructions based on the results. For example, by inputting an IF-THEN in Excel, you can test if a specific cell is greater than 900.

What is if/then else endif statement?

Purpose: Use the IF/THEN/ELSE/ENDIF statement construct to conditionally execute job steps within a job. The IF statement is always followed by a relational-expression and a THEN clause. Optionally, an ELSE clause can follow the THEN clause. ... The system evaluates the relational-expression at execution time.

Can if and else if both be true?

Use two if statements if both if statement conditions could be true at the same time. In this example, both conditions can be true. You can pass and do great at the same time. Use an if/else statement if the two conditions are mutually exclusive meaning if one condition is true the other condition must be false.

Why to use else if?

• If-else statements is used to control the flow of a program. The if statement test a condition and if the condition is true, the if statement block will execute. The else statement will execute if an if condition is not true. The elseif statement is used to form chains of conditions.

What does if else statement mean?

• An if else statement in programming is a conditional statement that runs a different set of statements depending on whether an expression is true or false.

What is else if in C?

• The if else statement in C programming language is used to execute a set of statements if condition is true and execute another set of statements when condition is false. Only either if block or else block of code gets executed(not both) depending on the outcome of condition.