Nested Class

List.java

package nesting;
public class Father {
   /* ============================================================
	     methods in the class Father can access PRIVATE
	     members of this NESTED class !!!
	  ============================================================ */
   private class BankAccount {
	  private double accountNumber;    // *** Private variable !!! ***
	  private String transferee;     // *** Private variable !!! ***

	  public BankAccount (double x) {
	     accountNumber = x;
	     transferee  = null; // It's good to make next to point to illegal null
	  }
  }

   private BankAccount bankAccount; // **** Access SHOULD be set to private ****

   // Constructor
   public Father () {
	  bankAccount = null;    // Make an empty list
   }

   /* ====================================================
	  put( x ): store value x into the list
	  ==================================================== */
   public void put (double x, String name) {
	  BankAccount e;

	  e = new BankAccount(x);  
	  e.transferee = name;       // You can use PRIVATE variables in BankAccount !       
	  // Store this in a server DB or pass it over REST 
   }
}