Objects - Pass by refrence or pass by value ----Confusion

Question

Hii Javaties
I have confuison regardhing whether objects are passed by value or refernce -----------------------------------------------------
i have a function ( test() ) that calls
another function ( change(Test_Bean) ) which takes a bean as a parameter.
If in this calling function i change the value of the bean , then the value of bean is actually altered in calling function .
function change(Test_Bean)
     test_bean.setName("Peter");
function test()
      Test_Bean test_bean=new Test_Bean();
       test_bean.setName("Tom");
       change(test_bean);
       System.out.println("Name ="+ test_bean.getName());
       /* Name = Peter is printed */
}Can anybody tell me why is this so ?

Answer 1

Your code demonstrates the proper functioning of pass
by value. You altered the state of an object by using
the correct method. That has nothing to do with
attempting to reassign the reference which would be
pass by reference and you can't do.If this is pass be value , then how can i change the value of original copy ?
If i am using the correct method to alter the state , then it sould alter the state of the local copy not the of original object.
I am still confused .......