exception in thread "main" java.lang.error: unresolved compilation problem:

Question

Problem :

I am having a problem importing classes and setting variables and I need help with it.

I am getting below error

exception in thread "main" java.lang.error: unresolved compilation problem:

Answer 1

This line is the root cause of your problem: Message messageObject = new Message ();

The error says that Message class is not known at compile time.

So you need to import below classes to resolve the issue.

import package1.package2.Message;

import java.util.Scanner; 

import java.util.Timer;

Further Readings:

http://docs.oracle.com/javase/tutorial/java/package/usepkgs.html