public class Worker {
   private String name;
   
   public Worker(){
       name = "Unnamed";
   }

    public String getName() {
        return name;
    }

    public void setName(String newName) {
        if (newName != null) {
            this.name = newName;
        }
    }
    
    public String toString() {
        return "worker " + name;
    }
   
   
}