public static void main(String[] args) {
Rational r = new Rational(2, 3); // Stores the rational number 2/3
Rational s = new Rational(1, 2); // Stores the rational number 1/2
Rational t = new Rational(4, 18); // Stores the rational number 4/18
Rational v = new Rational(4, 8);
Object a = 42;
Object b = "hi";
r.add(s); // Adds r to s, changes r to 7/6. s remains 1/2
t.reduce(); // Changes t to 2/9
System.out.println(r + "\tshould be 7/6");
System.out.println(s + "\tshould be 1/2");
System.out.println(t + "\tshould be 2/9");
System.out.println(r.compareTo(s) + "\tshould be 1");
System.out.println(s.compareTo(r) + "\tshould be -1");
System.out.println(s.compareTo(s) + "\t should be 0");
System.out.println(s.compareTo(v) + "\t should be 0");
System.out.println(s.equals(a) + "\tshould be false");
System.out.println(s.equals(b) + "\tshould be false");
System.out.println(s.equals(r) + "\tshould be false");
System.out.println(s.equals(s) + "\tshould be true");
System.out.println(s.equals(v) + "\tshould be true");
}
/**
* Return the next downbeat (beat 1) after the given point
*
* @param r
* @return
*/
public Rational nextDownBeat(Rational r) {
Rational meterEstablishedAt = _data.floorKey(r);
TimeSignature ts = _data.get(meterEstablishedAt);
Rational result = meterEstablishedAt;
Rational inc = Rational.get(ts.TOP);
while (result.compareTo(r) <= 0) {
result = result.plus(inc);
}
// Look ahead - if a new Time Signature overrode our
// old time signature before it completed a measure
// we need to compensate for that.
Rational higher = _data.higherKey(r);
if (higher != null && result.compareTo(higher) > 0) result = higher;
return result;
}
public static void main(String[] args) {
Rational d, e, f;
d = new Rational(1, 2);
e = new Rational(2, 3);
f = new Rational(2, 4);
// System.out.println(d.getA());
System.out.println(d.ratNum());
System.out.println(d.equals(e));
System.out.println(d.equals(f));
System.out.println((d.mult(f)).ratNum());
System.out.println(d.compareTo(e));
}
public static void main(String[] args) {
Rational r = new Rational();
Rational s = new Rational(8, 18);
Rational t = new Rational(4, 6);
Rational v = new Rational(7, 21);
Rational w = new Rational(7, 21);
/*
System.out.println("~~--------------------------------~~");
System.out.println("Testing toString(): \n");
System.out.println();
System.out.println("Rational r:");
System.out.println(r);
System.out.println("Rational s:");
System.out.println(s);
System.out.println("Rational t:");
System.out.println(t);
System.out.println("Rational v:");
System.out.println(v);
System.out.println("~~--------------------------------~~");
System.out.println("Testing multiply(): ");
System.out.println();
System.out.println("s * v");
System.out.println();
System.out.println("BEFORE:");
System.out.println("Rational s:");
System.out.println(s);
System.out.println("Rational v:");
System.out.println(v);
s.multiply(v);
System.out.println("AFTER:");
System.out.println("Rational s:");
System.out.println(s);
System.out.println("Rational v:");
System.out.println(v);
System.out.println("~~--------------------------------~~");
System.out.println("Testing divide(): ");
System.out.println();
System.out.println("v / s");
System.out.println();
System.out.println("BEFORE:");
System.out.println("Rational s:");
System.out.println(s);
System.out.println("Rational v:");
System.out.println(v);
v.divide(s);
System.out.println("AFTER:");
System.out.println("Rational s:");
System.out.println(s);
System.out.println("Rational v:");
System.out.println(v);
System.out.println("~~--------------------------------~~");
System.out.println("Testing add(): ");
System.out.println();
System.out.println("r + t");
System.out.println();
System.out.println("BEFORE:");
System.out.println("Rational r:");
System.out.println(r);
System.out.println("Rational t:");
System.out.println(t);
r.add(t);
System.out.println("AFTER:");
System.out.println("Rational r:");
System.out.println(r);
System.out.println("Rational t:");
System.out.println(t);
System.out.println("~~--------------------------------~~");
System.out.println("Testing subtract(): ");
System.out.println();
System.out.println("t - r");
System.out.println();
System.out.println("BEFORE:");
System.out.println("Rational t:");
System.out.println(t);
System.out.println("Rational r:");
System.out.println(r);
t.subtract(r);
System.out.println("AFTER:");
System.out.println("Rational t:");
System.out.println(t);
System.out.println("Rational r:");
System.out.println(r);
*/
System.out.println("~~--------------------------------------------~~");
System.out.println("Testing compareTo(): ");
System.out.println();
System.out.println("Rational r:");
System.out.println(r);
System.out.println("Rational w:");
System.out.println(w);
System.out.print("compare r and w: ");
System.out.print(r.compareTo(w) + "\n\n");
// what how does compareTo function when numbers are equal? floats are weird
Rational apple = new Rational(3, 9);
Rational banana = new Rational(1, 3);
System.out.println("Testing compareTo(): ");
System.out.println();
System.out.println("Rational apple:");
System.out.println(apple);
System.out.println("Rational banana:");
System.out.println(banana);
System.out.println("compare apple and banana: ");
System.out.println(apple.compareTo(banana) + "\n\n");
System.out.println("Rational v:");
System.out.println(v);
System.out.println("Rational w:");
System.out.println(w);
System.out.print("compare v and w: ");
System.out.print(v.compareTo(w) + "\n\n");
System.out.println("Rational t:");
System.out.println(t);
System.out.println("Rational s:");
System.out.println(s);
System.out.print("compare t and s: ");
System.out.print(t.compareTo(s) + "\n\n");
System.out.println("~~--------------Testing equals()------------------~~");
Object a = new Rational(1, 7);
Object b = new Rational(2, 14);
Object c = new Rational(3, 14);
Object d = new Rational(1, 7);
System.out.println(a.equals(b));
System.out.println(a.equals(c));
System.out.println(a.equals(d));
System.out.println(b.equals(c));
System.out.println("~~--------------------------------~~");
}
public static void main(String[] args) {
Rational r1 = new Rational(1, 5); // rational number 1/5
Rational r2 = new Rational(1, 2); // rational number 1/2
r1.multiply(r2); // Multiplies r1 by r2, changes r1 to 1/10 (0.1)
System.out.println(r1);
System.out.println(r1.denominator); // 10
System.out.println(r1.numerator); // 1
System.out.println();
r2.divide(r1); // Divides r2 by r1, changes r2 to 5/1 (5.0)
System.out.println(r2);
System.out.println(r2.denominator); // 2
System.out.println(r2.numerator); // 10
System.out.println();
System.out.println(r2.gcd()); // 2
System.out.println();
r2.reduce();
System.out.println(r2.denominator); // 1
System.out.println(r2.numerator); // 5
System.out.println();
System.out.println(r1.compareTo(r2)); // -1
System.out.println(r2.compareTo(r1)); // 1
System.out.println();
System.out.println(gcd(32, 12)); // 4
System.out.println();
r1.add(r2);
System.out.println(r1); // 5.1
System.out.println();
r2.subtract(r1);
System.out.println(r2); // -0.1
System.out.println();
System.out.println(r1.compareTo(r2)); // 1
System.out.println(r2.compareTo(r1)); // -1
Rational r3 = new Rational(3, 4);
Rational r4 = new Rational(4, 5);
System.out.println();
System.out.println(r3.compareTo(r4)); // -1
System.out.println(r4.compareTo(r3)); // 1
Rational r5 = new Rational(33333333, 100000000);
Rational r6 = new Rational(1, 3);
System.out.println();
System.out.println(r5); // 0.33333333
System.out.println(r6); // 1/3
System.out.println(r5.compareTo(r6)); // 1
System.out.println(r6.compareTo(r5)); // -1
System.out.println("-------------");
System.out.println("-- .equals --");
System.out.println(r3.equals(r4)); // false
Rational re0 = new Rational(0, 10);
Rational re1 = new Rational(0, 3);
System.out.println(re0.equals(re1)); // true
System.out.println(re1.equals(re0)); // true
Rational re2 = new Rational(2, 4);
Rational re3 = new Rational(12, 24);
Rational re4 = new Rational(-12, -24);
System.out.println(re2.equals(re3)); // true
System.out.println(re4.equals(re2)); // true
Rational re5 = new Rational(3, 7);
Rational re6 = new Rational(3, -7);
Rational re7 = new Rational(-3, 7);
System.out.println(re5.equals(re6)); // false
System.out.println(re7.equals(re5)); // false
System.out.println(re6.equals(re7)); // true
}
