Call object created from another class

Question

I need ClassB to get the object created from ClassA, which is u. How do I do that? ClassA sets the value using setSomething() from Utility class, while ClassB should get the value set by ClassA using the getSomething() of the same object(u)

public class ClassA
{
   Utility u = new Utility()
   u.setSomething("David");
}

public class ClassB
{
   //How do I get the 'u' Utility object from ClassA
}

public class Utility
{
private String fullName;

   public void setSomething(String name)
   {
      this.fullName = name
   }

   public String getSomething()
   {
      return fullName;
   }

}

Answer 1

Straightforward approach without patterns and simple classes.

public class ClassA {
   private Utility u = new Utility()

   public ClassA() {
       u.setSomething("David");
   }

   public Utility getU() {
        return u;
   }
}

 public class ClassB {
     private ClassA classA = new ClassA();

     public ClassB() {
         System.out.println(classA.getU().getSomething());
     }

 }

public class Utility {
   private String fullName;

   public void setSomething(String name) {
      this.fullName = name;
   }

   public String getSomething() {
      return fullName;
   }
}

public static void main(String[] args) {
    ClassB b = new ClassB();
}

Should print out 'David';