What will be the output of the following program?
public class InterestCalculator {
public static void main(String[] args) {
Interest ii = new Interest(4000.0, 5, 2);
print(ii.getInterest());
Simple s = new Simple(8000.0, 4, 2);
print(s.getInterest());
print(((IInterest) s).getInterest());
}
private static void print(double interest) {
System.out.print(String.format("~%5.2f~", interest));
}
}
interface IInterest { double getInterest(); }
class Interest {
double principal, rate, years;
public Interest(double principal, double rate, double years) {
this.principal = principal; this.rate = rate; this.years = years;
}
double getInterest() { return principal * rate * years; }
}
class Simple extends Interest implements IInterest {
public Simple(double principal, double rate, double years) {
super(principal, years, rate);
}
double getInterest() { return super.getInterest() / 100.0; }
}
Externalizable interface
