Eclipse treating file as plain text

Question

I've got a small homework project, and for whatever reason Eclipse has decided to stop highlighting syntax or allowing intellisense or goto definitions or anything in this Main.java file. I've tried rebooting it, and the computer, but had no luck.

The thing that really has me confused is that it's still compiling and running the code correctly (eg, changes I make in Main.java are compiled and run - it's not running old Main.class files), so it's still in the build path ... right?

Any ideas?

Answer 1

Right click on the file in the Package Explorer and choose the Open With menu. You will probably find that Text Editor is selected, choose Java Editor to open the file with the correct editor.

The Open With menu selection is remembered so you should get the Java Editor in future, but equally if you choose the plain text editor that is also remembered.

Answer 2

I suggest finding a way to reset any setting you might have set by accident. Not saying that you did it. But just to make sure, just try it out. If you customized the preferences already, you could make some kind of note of the settings, then change it. If that doesn't work, let me know. Good Luck!

Answer 3

将文本复制到某处，删除文件，然后添加一个新类（同名）并粘贴文本。