Remember the order of operations:
1. ( )
2. ^
3. *, / from left to right
4. +, - from left to right
PEMDAS is an acronym used to mention the order of operations to be followed while solving expressions having multiple operations.
PEMDAS stands for
P- Parentheses,
E- Exponents,
M- Multiplication,
D- Division,
A- Addition, and
S- Subtraction.
El ejercicio Parenthetical brainteaser fue muy dificil pero lo puede hacer!! en un momento creí que no había forma de llegar a 382. Excelente ejercicio.
I've just noticed something...when using IntelliJ normally, I see the output of running the program in the terminal below, but this does not happen when running the CodeGym exercises. It tells me if the program is correct or not, but I don't see the output?
You can use the "run" button between "discuss" and "code analysis" in the browser to see the output without verfiying.
Justin SmithLevel 41, Greenfield, USA, United States
4 July 2021
For the Parenthetical Brainteaser, I am not sure if it matters (I have yet to find the solution after several hours), but after googling something I was unsure about, there may be an important piece of information not listed in any of the lessons up to this point. Java will follow the order of operations in mathematical expressions.
In other words, if you have 2 + 4 * 7, Java will evaluate 4 * 7 first and arrive at an answer of 30, rather than 42. Parentheses aren't necessary if 30 is the desired result. So the solution to this may involve not needing to put parentheses around a multiplied part because it's automatically going to be done first.
I wish I had googled this first, because I've already spent the first 4 hours of this task assuming it was just strict left-to-right evaluation except for parentheses.
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