(bank)abstraction3.java

abstract class Bank{
    abstract int getRateOfInterest();}

class SBI extends Bank{
    int getRateOfInterest()
    {return 7;}
}

class PNB extends Bank{
    int getRateOfInterest()
    {return 8;}
}

class TestBank{
    public static void main(String args[]){
        Bank b;
        b=new SBI();
        System.out.println("Rate of Interest is :"+b.getRateOfInterest()+"%");
        b=new PNB();
        System.out.println("Rate of Interest is :"+b.getRateOfInterest()+"%");
    }
}