increment

What is the difference between i++ & ++i in a for loop?

They both increment the number. ++i is equivalent to i = i + 1. i++ and ++i are very similar but not exactly the same. Both increment the number, but ++i increments the number before the current expression is evaluted, whereas i++ increments the number after the expression is evaluated.

Java: Increment by 2 the two inputted integer

Some Notes: 1- in.nextInt(); reads an integer from the user, blocks until the user enters an integer into the console and presses ENTER. The result integer has to be saved in order to use it later on, and to do so save it into a variable, something like this: In your code, you need to assign the 3 … Read more

++someVariable vs. someVariable++ in JavaScript

Same as in other languages: ++x (pre-increment) means “increment the variable; the value of the expression is the final value” x++ (post-increment) means “remember the original value, then increment the variable; the value of the expression is the original value” Now when used as a standalone statement, they mean the same thing: The difference comes when you … Read more

Behaviour of increment and decrement operators in Python

++ is not an operator. It is two + operators. The + operator is the identity operator, which does nothing. (Clarification: the + and – unary operators only work on numbers, but I presume that you wouldn’t expect a hypothetical ++ operator to work on strings.) Parses as Which translates to You have to use the slightly longer += operator to do what you want to do: I suspect the ++ and — operators … Read more