How does Integer.parseInt(string) actually work?

Question

Was asked this question recently and did not know the answer. From a high level can someone explain how Java takes a character / String and convert it into an int.

M

Answer 1

I'm not sure what you're looking for, as "high level". I'll give it a try:

• take the String, parse all characters one by one
• start with a total of 0
• if it is between 0 and 9, total = (total x 10) + current
• when done, the total is the result