Where are if Elif else statement used?

Where are if Elif else statement used?

The if-elif-else statement is used to conditionally execute a statement or a block of statements. Conditions can be true or false, execute one thing when the condition is true, something else when the condition is false.

What does it mean to put the most specific case first?

The most specific case first means the most selective part of the if-else-if statement or the case that will help determine the cases of the others.

What is the difference between an if statement an IF ELSE statement and an IF ELSE IF statement?

With else if, you have at least 2 code blocks, one for your first if statement, when it is true, and then a second if statement, when the if statement isn’t true, but you want another condition to execute this block.

Can you put an if statement inside a while loop?

Yes and vice versa. You can nest for, while, if/else and switch statement blocks inside one another. This is true of every language that I know of.

Can we use if else inside while loop?

5 Answers. If you check inside the loop then it will not work it will still multiply the fact . You need to make sure that the num is not negative before you start the while loop. int num = 0; do { if (num<0){ System.

What is a for loop in R?

In many programming languages, a for-loop is a way to iterate across a sequence of values, repeatedly running some code for each value in the list. In R, the general syntax of a for-loop is for(var in sequence) { code } where the variable var successively takes on each value in sequence .

Can we write if inside else?

Yes, placing an if inside an else is perfectly acceptable practice but in most cases use of else if is clearer and cleaner. E.g. and the two should compile to almost identical programs in most situations.

Will the while loop have the possibility of an infinite loop?

The while loop will continue as long as the condition is non zero. is not an infinite loop because after executing the loop a few times, b will become 6, which is greater than a , and hence, the condition ( a > b ) will return false, and the loop will stop.

Why is my while loop infinite?

Basically, the infinite loop happens when the condition in the while loop always evaluates to true. This can happen when the variables within the loop aren’t updated correctly, or aren’t updated at all. Let’s say you have a variable that’s set to 10 and you want to loop while the value is less than 100.

What is a common cause of an accidental infinite loop?

This is a silly example, but it’s common for infinite loops to accidentally occur. Most of the times, it’s because the variables used in the condition are not being updated correctly, or because the looping condition is in error.

How do you stop an infinite loop?

How to avoid running into infinite loops?

1. Ensure you have at least one statement within the loop that changes the value of the comparison variable. (That is, the variable you use in the loop’s comparison statement.)
2. Never leave the terminating condition to be dependent on the user.

Can we write a for loop without initialization?

A ‘for’ loop can be written without initialization. A ‘for’ statement usually goes like: for (initialization; test-condition; update). We can leave out any or all three of them at a time.