protected static Rational average(Rational r1, Rational r2) {
long d1 = r1.getDenominator();
long d2 = r2.getDenominator();
Rational f1 = new Rational(r1.getNumerator() * d2, r1.getDenominator() * d2);
Rational f2 = new Rational(r2.getNumerator() * d1, r2.getDenominator() * d1);
return new Rational((f1.getNumerator() + f2.getNumerator()) / 2, f1.getDenominator());
}
@Override
// Comparison between the 2 objects
// Cross multiplies the rationals and checks the numerator and denominator values
public int compare(Rational o1, Rational o2) {
int lhs = o1.getNumerator() * o2.getDenominator();
int rhs = o1.getDenominator() * o2.getNumerator();
if (lhs < rhs) return -1; // rhs is greater than lhs --> r is less than current Rational
else if (lhs > rhs) return 1; // lhs is greater than rhs --> r is greater than current Rational
else return 0; // lhs and rhs are both equal --> Rationals are equal
}
public static void main(String args[]) {
Rational zero = new Rational(), half = new Rational(1, 2), halfCopy = new Rational(half);
zero.setNumerator(1);
zero.setDenominator(3);
System.out.println("zero's numerator: " + zero.getNumerator());
System.out.println("zero's denominator: " + zero.getDenominator());
halfCopy.addWith(half);
System.out.println("halfCopy:" + halfCopy);
}
