Final answer:
Product complexity is high when the code contains if-then-else and do-while.
Step-by-step explanation:
Product complexity is high when the code contains if-then-else and do-while. The presence of if-then-else statements introduces decision-making logic, which can increase the complexity of the code. Additionally, the use of do-while statements introduces loops, which can also add to the complexity of the code.
An if-then-else statement is used to make a decision based on a condition. It evaluates the condition and executes different blocks of code based on the result. This branching logic adds complexity because there are multiple paths that the code can take.
A do-while statement is used to create a loop that executes a block of code repeatedly until a specified condition is no longer true. The presence of a loop adds complexity because the code may need to repeat a certain number of times to complete the task.