AdvancedProgramming1404/HW-03-oop-and-api
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Complete the Rational

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This commit is contained in:
bitahajati
2026-04-25 20:09:30 +03:30
parent 5473658dc8
commit ad601cadc2
1 changed files with 18 additions and 26 deletions
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src/main/java/Rational/Rational.java
+18 -26
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@@ -51,46 +51,38 @@ public class Rational {
return r1.add(r2); return r1.add(r2);
} }
// TODO: Instance method - this - other
// Formula: a/b - c/d = (a*d - c*b) / (b*d) // Formula: a/b - c/d = (a*d - c*b) / (b*d)
public Rational subtract(Rational other) { public Rational subtract(Rational other) {
// YOUR CODE HERE int newNumerator = this.numerator * other.denominator - other.numerator * this.denominator;
return null; // Remove this line when implemented int newDenominator = this.denominator * other.denominator;
return new Rational(newNumerator, newDenominator);
} }
// TODO: Static method - r1 - r2 public static Rational subtract(Rational r1, Rational r2) { return r1.subtract(r2); }
public static Rational subtract(Rational r1, Rational r2) {
// YOUR CODE HERE
return null; // Remove this line when implemented
}
// TODO: Instance method - this * other
// Formula: (a/b) * (c/d) = (a*c) / (b*d) // Formula: (a/b) * (c/d) = (a*c) / (b*d)
public Rational multiply(Rational other) { public Rational multiply(Rational other) {
// YOUR CODE HERE int newNumerator = this.numerator * other.numerator;
return null; // Remove this line when implemented int newDenominator = this.denominator * other.denominator;
return new Rational(newNumerator, newDenominator);
} }
// TODO: Static method - r1 * r2 public static Rational multiply(Rational r1, Rational r2) { return r1.multiply(r2); }
public static Rational multiply(Rational r1, Rational r2) {
// YOUR CODE HERE
return null; // Remove this line when implemented
}
// TODO: Instance method - this / other
// Formula: (a/b) ÷ (c/d) = (a*d) / (b*c) // Formula: (a/b) ÷ (c/d) = (a*d) / (b*c)
public Rational divide(Rational other) { public Rational divide(Rational other) {
// YOUR CODE HERE if(other.numerator == 0) {
// HINT: Division is multiplication by reciprocal System.out.println("Error !");
// Don't forget to check if other.numerator is zero! }
return null; // Remove this line when implemented else {
int newNumerator = this.numerator * other.denominator;
int newDenominator = this.denominator * other.numerator;
return new Rational(newNumerator, newDenominator);
}
return null;
} }
// TODO: Static method - r1 / r2 public static Rational divide(Rational r1, Rational r2) { return r1.divide(r2); }
public static Rational divide(Rational r1, Rational r2) {
// YOUR CODE HERE
return null; // Remove this line when implemented
}
// PROVIDED - String representation // PROVIDED - String representation
@Override @Override