notepad++/notepad: error: unmapped character OC encoding GBK

@ notepad++/notepad: error: unmapped character OC encoding GBK

#Solution : Copy the code and create a new file encoding format in notepad++, select ANSI format and save as to overwrite the original .java file. Then you can

select ANSI encoding format to overwrite the original file when you directly save as with the DOS compiling windows Notepad tool.