What’s wrong with my code?

Question

Anyone know why I get 3 error messages not allowing my code to run properly? I directly copied and pasted from my book and I’ve been doing that and it’s worked up until this piece of code

class LowerToUpper {
public static void main(String args[]) {
char smallLetter, bigLetter;
smallLetter = ’b’;
bigLetter = Character.toUpperCase(smallLetter);
System.out.println(bigLetter);
}
}

Answer 1

A common problem that came from copy/paste code, where some invalid characters (looking like spaces) accidentally copied over, and preventing the compiler from processing the code.

Remove and retype this whole line

smallLetter = 'b';

Lucky you it was just one line poisoned by invalid characters. Sometimes such characters spreads a whole code.

Anyways, please note the use of tags on your future posts. We are expected to put relevant words in posts' tags ...

https://code.sololearn.com/W3uiji9X28C1/?ref=app

Answer 2

I had a feeling that was the problem but i forgot to check. Thanks for your help. I should have Relevant tags but i didnt know what to write i just needed help real quick. Thanks again , God bless you 😎👍🙏