Project – Step 9 - https://www.codecademy.com/courses/learn-java/projects/java-dna-sequencing
Greetings! Trying to sit here in my sick haze, I was a bit perplexed by this following condition:
" Lastly, you’ll find out whether or not there is a protein!
Let’s start with an if
statement that checks for a start codon and a stop codon using the &&
operator.
Remember that the indexOf()
string method will return -1
if the substring doesn’t exist within a String
."
To which I quickly selected the: “Hint” feature and found that they structured it as:
if (start != -1 && stop != -1) { System.out.println("Condition 1 and 2 are satisfied."); }
Is this because they are trying to ensure that they do not return a “-1 if the substring doesn’t exist within a String” error? They way I would structure it off the top of my head is:
//
if (start == ‘ATG’ && stop == ‘TGA’) {
System.out.println(“Condition 1 and 2 are satisfied”);
//
Is this not correct? Or are they ensuring validity in some other way? I am a biologist, so this is new to me. I apologize!