When I open an UTF8 file or GB2312 file in IDE, the file could be looks correctly.
But if you check carefully, you will find a few characters at the end of line, which contains multi-byte characters, was missing.
If you move the cursor to the line which contains multi-byte characters (click on that line), the cursor and the line will not working properly!
You point the cursor to the position will not be the REAL position. So, you will delete the characters you don't want, you will input words in the wrong place if this is a line contains Multi-byte characters.
Encode setting doesn't help!
Follow is the screenShot.
Check the codes with red lines at the end. the last tag are all incomplete!
Image is located at :http://forum.nusphere.com/sshot/386809742.jpg