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    Maybe I used a else if instead of just else. I thought though that it was possible for my code to reach my else non the less.

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    Your IDE is correct.
    The reason why it works in this case is because one of these return statements will be always executed.

    The condition 'name.toUpperCase().startsWith("R")' is either true or false. And you have one return statement for each of these possibilities. There is no condition that would lead elsewhere.

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    How are you allowed to not write a string outside the if statement? I tried this many times but my IDE alwasy tells me that I need a retrun, that it is possible for the return to not be reached.