Eclipse Java Project Error

Question

I created a new project in Eclipse called Lottery. The first thing that happened was I recieved a weird icon on my project that I never seen before.

I decided it was nothing and created a new class, called RandomNumberGenerator. Then it gave me the following error:

Implicit super constructor Object() is undefined for default constructor. 
Must define an explicit constructor

I have no idea what the problem is. Could somebody help? I can't create another class without an error!

Thanks in advance!

Answer 1

this will help you

1. in project property dialog , check that JRE System Liabrary is set properly or not in Java Build Path.

2. in same dialog check builders option , if you are using javascript code than this may be happed.

Answer 2

Do this:

Windows -> Show View -> Problems

You will have a detail of your project's errors. I would bet that is a classpath / buildpath / JRE configuration error.