title: Comparing two list which contains same POJO and update
body: <p>I have two lists which contain the same type of POJO Objects. But POJO objects of one of the list gets modified, so I should update other lists which also contains the same POJO object by comparing its name.</p>
  <p><em>Example :</em></p>
  <blockquote>
  <p>List 1 contains 100 cars..</p>
  <p>List 2 also contains same 100 cars</p>
  </blockquote>
  <p>(Model objects. But in list 2 some of the cars(Model) object gets modified. So need to update those values in List 1.</p>
  <p>Instead of iteration is there any other way to do comparison efficiently and update POJO objects in another list</p>