Passing Object Reference Variables : Parameter « Java Source And Data Type « SCJP

1. SCJP
2. Java Source And Data Type
3. Parameter

import java.awt.Dimension;
  class ReferenceTest {
    public static void main (String [] args) {
      Dimension d = new Dimension(5,10);
      ReferenceTest rt = new ReferenceTest();
      System.out.println("Before modify() d.height = "
                           + d.height);
      rt.modify(d);
      System.out.println("After modify() d.height = "
                           + d.height);
    }
   void modify(Dimension dim) {
     dim.height = dim.height + 1;
     System.out.println("dim = " + dim.height);
   }
 }