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Java Tutorial : Java abstract class(Bank)

Bank.java

public abstract class Bank
{
    abstract int getRateOfInterest();
}

class HDFC extends Bank
{

    @Override
    int getRateOfInterest()
    {
        return 10;
    }
    
}

class ICICI extends Bank
{

    @Override
    int getRateOfInterest()
    {
        return 7;
    }
    
}

public class AbstractClassTest
{

    public static void main(String[] args)
    {
        Bank bankRef = new HDFC();
        System.out.println("HDFC Bank : "+bankRef.getRateOfInterest());
        
        bankRef = new ICICI();
        System.out.println("ICICI Bank : "+bankRef.getRateOfInterest());
    }

}