Illegal Character when trying to compile java code

Question

I have a program that allows a user to type java code into a rich text box and then compile it using the java compiler. Whenever I try to compile the code that I have writte

Answer 1

instead of getting Notepad++, You can simply Open the file with Wordpad and then Save As - Plain Text document

Answer 2

In Android Studio

1. Menu -> Edit -> Select All
2. Menu -> Edit -> Copy

3. Open new Notepad.exe

In Notepad

4. Menu -> Edit -> Paste
5. Menu -> Edit -> Select All
6. Menu -> Edit -> Copy 

Back In Android Studio

7. Menu -> Edit -> Paste

Answer 3

I solved this by right clicking in my textEdit program file and selecting [substitutions] and un-checking smart quotes.