Question

Within a for loop, which line of code would you use to increase the number within a variable?

1) variable++
2) variable--
3) ++variable
4) --variable

Answer 1

To increase a variable's number within a for loop, the code lines variable++ or ++variable can be used, both incrementing the value by 1.

Step-by-step explanation:

In the context of a for loop within programming, to increase the number within a variable you would use either 1) variable++ or 3) ++variable. Both options are correct and will increment the variable's value by 1. However, there is a slight difference between them in terms of when the increment happens. variable++ is known as post-increment, where the variable is increased after its current value is used. ++variable is called pre-increment, where the value is increased before it is used. For a simple increment where the timing doesn't impact the result, either form can be used.