advance programming 2

public class BankSystem {
         class AgraniBankAccount extends BankAccount {
             final double saving = 0.01; 
             final double fixed = 0.03; 
        
            
        class Sonali extends BankAccount
        {
    
        }
        class Janata extends BankAccount
        {
    
        }
        
    }

    public static void main(String[] args) {
        
    }
    
}