Question

In evaluating a loop, you find the following statement:
"value += 1".
What happens to the value variable upon each iteration of the loop?
Group of answer choices:
A. The variable's value is changed to a positive value.
B. The variable is reset to an int type, with a value of 1.
C. The variable is incremented by itself.
D. The variable is increased by 1 each iteration through the loop.

Answer 1

Answer:

D) The variable is increased by 1 each iteration through the loop

Explanation:

In Most popular programming languages such as java, c++, python etc, there is a variance to the simple assignment operator. (=). This variance is called a compound assignment operator. Compound operators come in different styles for example

x = x+1 equivalent x+=1

x = x-1 equivalent x- =1

x = x/y equivalent x/=y

In the question scenario value += 1 is equivalent to value = value+1. Compound operators are important in providing short hands while coding as well as helping the programmer from having to cast variable types explicitly