Assume the existence of a BankAccount class . Define a derived class , SavingsAc
ID: 3541884 • Letter: A
Question
Assume the existence of a BankAccount class . Define a derived class , SavingsAccount that contains two instance variables : the first a double , named interestRate, and the second an integer named interestType. The value of the type variable can be 1 for simple interest and 2 for compound interest. There is also a constructor that accepts two parameters : a double that is used to initialize the interestRate variable , and a string that you may assume will contain either "Simple", or "Compound", and which should be used to initialize the type variable appropriately. There should also be a pair of functions getInterestRate and getInterestType that return the values of the corresponding data members (as double and int respectively).
Explanation / Answer
public class SavingsAccount extends BankAccount {
private double interestRate;
private int interestType;
public SavingsAccount(double interestRate, String interestType) {
super();
this.interestRate = interestRate;
if ( interestType.equalsIgnoreCase("Simple")){
this.interestRate= 1;
// setting to simple interest type
}
else if (interestType.equalsIgnoreCase("Compound")){
this.interestRate =2;
// setting to compound interest type
}
}
public double getInterestRate() {
return interestRate;
}
public int getInterestType() {
return interestType;
}
}
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