Main.java:
----------

package testcase;

public class Main {

    public static final String example = "foofoo"; // on 2nd run set to "barbar" 

    public static void main(String[] args) {
        System.out.println("Value in the same class: " + example);
        System.out.println("Value in helper class: " + new Helper().example());
    }

}



Helper.java:
------------
package testcase;

public class Helper {

    public String example() {
        return Main.example;
    }
}



1st run output:
---------------
run:
Value in the same class: foofoo
Value in helper class: foofoo
BUILD SUCCESSFUL (total time: 0 seconds)



2nd run output:
---------------
run:
Value in the same class: barbar
Value in helper class: foofoo
BUILD SUCCESSFUL (total time: 0 seconds)



System specs:
-------------
Product Version: NetBeans IDE 6.5 (Build 200811100001)
Java: 1.6.0_11; Java HotSpot(TM) Client VM 11.0-b16
System: Windows XP version 5.1 running on x86