Question: What Is The Difference Between If Else And Nested If Else?

What kind of statement is if statement?

An if statement is a programming conditional statement that, if proved true, performs a function or displays information.

Below is a general example of an if statement, not specific to any particular programming language..

What does ELSE IF mean?

Updated: 06/30/2019 by Computer Hope. Alternatively referred to as elsif, else if is a conditional statement performed after an if statement that, if true, performs a function.

What is the point of ELSE IF?

else if would be faster in the sense that you compare until you hit a condition that resolves to true, and you skip the rest of the if s. Also consider reordering the compares in order of descending frequency. And using the switch statement depending on the datatype of the object you are comparing.

Do While loop terminates when conditional expression returns?

This means that the code must always be executed first and then the expression or test condition is evaluated. If it is true, the code executes the body of the loop again. … If the expression is false, the loop terminates and control transfers to the statement following the do-while loop.

What is nested IF ELSE instruction?

Having one type of instruction within another is called nesting. With nested IF instructions, it is important to match each IF with an ELSE and each DO with an END. IF weather = fine THEN DO SAY ‘What a lovely day!’ IF tenniscourt = free THEN SAY ‘Shall we play tennis?’

What do you mean by nested IF?

A nested if statement is an if-else statement with another if statement as the if body or the else body. Here’s an example: … If the outer if condition evaluates to true, evaluate the outer if condition.

How many else if can you have?

Answer 514a8bea4a9e0e2522000cf1. You can use multiple else if but each of them must have opening and closing curly braces {} . You can replace if with switch statement which is simpler but only for comparing same variable.

How many choices are possible when using a single IF ELSE statement?

two choicesUsing IF and ELSE gives two possible choices (paths) that a program can follow. However, sometimes more than two choices are wanted. To do this, the statement ELSE IF is used.

What is nested IF in Python?

There may be a situation when you want to check for another condition after a condition resolves to true. In such a situation, you can use the nested if construct.

How many sequence of statements are present in C++?

five sequencesHow are many sequences of statements present in c++? Explanation: There are five sequences of statements. They are Preprocessor directives, Comments, Declarations, Function Declarations, Executable statements. 2.

What is nested if else explain with an example?

When an if else statement is present inside the body of another “if” or “else” then this is called nested if else.

Why use else if instead of if?

Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false.

Which loop is guaranteed to execute at least one time?

do-while loopThe do-while loop is similar to the while loop, except that the test condition occurs at the end of the loop. Having the test condition at the end, guarantees that the body of the loop always executes at least one time.

Is if/then a loop?

If-else is a programming construct designed to be a conditional block. Looping constructs are for, for each, while, etc. but yes if you really for theoretical purposes wish to use if else as a looping block then you can, by making use of goto statement.

Can you use 2 IF statements in Excel?

It is possible to nest multiple IF functions within one Excel formula. You can nest up to 7 IF functions to create a complex IF THEN ELSE statement. TIP: If you have Excel 2016, try the new IFS function instead of nesting multiple IF functions.

How does if else work?

The if/else statement executes a block of code if a specified condition is true. … Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false. Use switch to select one of many blocks of code to be executed.

What is the difference between Elif And else?

The elif is short for else if. It allows us to check for multiple expressions. If the condition for if is False , it checks the condition of the next elif block and so on. If all the conditions are False , the body of else is executed.

What is the difference between if/then and if/then else structures?

In if, the statements inside the if block will execute if the condition is true and the control is passed to the next statement after the if block. In the if else, if the condition is true, the statements inside the if block execute and if the condition is false the statements in the else block execute.

What is if else if else statement?

if statement – executes some code if one condition is true. if…else statement – executes some code if a condition is true and another code if that condition is false. if… elseif…else statement – executes different codes for more than two conditions.

What is correct syntax of for loop?

The condition will need to evaluate to true six times, once for each iteration of the code in the body of the for loop; on the seventh attempt it will evaluate to false. (c) Six times. The statement to increment or decrement the value of the counter is executed at the end of each iteration.