public class Class03
{
   /* ==============================================
      Method using a class variable as parameter
      ============================================== */
   public static String convToString( BankAccount x )
   {
      return( "Account number: "  + x.accNum 
           + ", Name: "  + x.name
           + ", Balance: " + x.balance);
   }
 
   public static void main(String[] args)
   {
      BankAccount stu1, stu2;
 
      stu1 = new BankAccount(); // Create one BankAccount object with 
                                // 3 data fields:
                                //    stu1.studID, stu1.name, stu1.major
      stu2 = new BankAccount(); // Create another BankAccount object (with    
                                // stu2.studID, stu2.name, stu2.major)
 
      stu1.accNum = 12345;
      stu1.name = "Mary";
      stu1.balance = 1000.0;
    
      stu2.accNum = 23456;
      stu2.name = "John";
      stu2.balance = 1500.0;
 
      String x;
 
      x = Class03.convToString( stu1 );
      System.out.println("BankAccount 1: " + x); 
 
      x = convToString( stu2 );        // Short hand method name
      System.out.println("BankAccount 2: " + x);
   }
}