使用 jdk1.8 并收到奇怪的错误

Question

I have this code: ArrayList<Integer> num_array = new Arraylist<Interger>();

WHY am I getting this error: "Syntax error, parameterized types are only available if source level is 1.5 or greater"

Answer 1

In your eclipse, go to the menu under Window -> Preferences -> Java -> Compiler . That will allow you to change the java version with the "Compiler compliance level" setting, since it appears to be set to 1.4 or lower.

EDIT: Also, if that does not work, right click on the project in the Project Explorer to the left of the screen, choose Properties and select Java Compiler . Apply the same changes here as well.