Update method multiply

Fraction.java

@@ -0,0 +1,224 @@
+package tp;
+
+/**
+ * This class represents a fraction, always in its reduced form. 
+ * @author Virginie Van den Schrieck
+ *
+ */
+
+public class Fraction {
+
+	//Constraint : The fraction must always be in reduced form
+	private int numerator;
+	private int denominator;
+
+
+	/**
+	 * Create a nul fraction
+	 */
+	public Fraction() {
+		super();
+		numerator = 0; 
+		denominator = 1;
+	}
+
+	/** BOHYN Gauthier
+	 * @param numerator 
+	 * @param denominator must be different from zero 
+	 * 
+	 */
+	public Fraction(int numerator, int denominator) {
+		super();
+	}
+
+	/** BOUQUOYOUE Bilel
+	 * This constructor builds a fraction based on a mixed number, i.e. the sum of a 
+	 * integer and a fraction. Example : One and a half <=> 1 + 1/2
+	 * @param wholePart the integer part of the fraction to be created
+	 * @param properFrac the fractional part of the mixed number
+	 */
+	public Fraction (int wholePart , Fraction properFrac) {
+		super();
+	}
+	/**	DEBONGNIE Nathan
+	 * @return the numerator
+	 */
+	public int getNumerator() {
+		return numerator;
+	}
+	/** 	DERREUMAUX Valentin
+	 * After any change, the fraction is reduced
+	 * @param numerator the numerator to set
+	 */
+	public void setNumerator(int numerator) {
+		this.numerator = numerator;
+	}
+	/** GODART Arno
+	 * @return the denominator
+	 */
+	public int getDenominator() {
+		return denominator;
+	}
+	/** 	LEBAS Yaël
+	 * If the denominator is different from zero, the fraction is changed. 
+	 * After the operation, the fraction is reduced. 
+	 * Nothing is done in case of nul denominator for now : this will have to be change 
+	 * in the future
+	 * @param denominator the denominator to set, must be non zero. 
+	 */
+	public void setDenominator(int denominator) {
+
+	}
+	/** 	LUYCKX Matthieu
+	 * Convert the fraction to its reduced form.  In case of a negative fraction, 
+	 * the numerator must be positive and the denominator must be negative. 
+	 */
+	private void reduce() {
+
+	} 
+	/** 	MICHOTTE Martin
+	 * Get a textual representation of the fraction
+	 * Ex : 3, 1/2, 4/3
+	 */
+
+	public String toString() {
+		return "Fraction []";
+	}
+
+	/** MUGISHA Tuyishime Rodrigue
+	 * Represents the fraction as a mixed number, i.e. the sum of a integer and 
+	 * a proper fraction. 
+	 * Ex : 1 + 1/2
+	 * Ex : 2/3
+	 * @return a textual representation of the fraction as a mixed number. 
+	 */
+	public String asMixedNumber() {
+		return "";
+	}
+
+	/** 	PASTORI Lucas
+	 * Computes the sum of two fractions.  Operands are left unmodified. 
+	 * @param f a non null fraction
+	 * @return a new fraction which is the sum of f and the current fraction, in its reduced form. 
+	 */
+	public Fraction add(Fraction f) {
+		return null;
+	}
+
+	/** PERDAENS Martin
+	 * Computes the difference of two fractions.  Operands are left unmodified. 
+	 * @param f a non null fraction
+	 * @return a new fraction which is the difference of f and the current fraction, in its reduced form. 
+	 */	
+	public Fraction soustract(Fraction f) {
+		return null;
+	}
+
+	/** 	TANG Jean-Michaël
+	 * Computes the produc of two fractions.  Operands are left unmodified. 
+	 * @param f a non null fraction
+	 * @return a new fraction which is the product of f and the current fraction, in its reduced form. 
+	 */
+	public Fraction multiply(Fraction f) {
+		return f.getNumerator()*f.getDenominator();
+	}
+
+	/** VALENTIN Morgan
+	 * Computes the division of two fractions.  Operands are left unmodified. 
+	 * @param f a non null fraction
+	 * @return a new fraction which is the division of f and the current fraction, in its reduced form. 
+	 */
+	public Fraction divide(Fraction f) {
+		return null;
+	}
+
+	/** 	BAUDINOT Maxime
+	 * Computes the value of the current fraction raised to the given power. Current fraction is unmodified.
+	 * @param power the power to which the fraction is raised
+	 * @return a new fraction equals to the current fraction raised to the given power.  
+	 */
+	public Fraction raiseToPower(Fraction power) {
+		return null;
+	}
+
+	/** 	BRICHANT Vincent
+	 * @return true if the current fraction is equals to zero
+	 */
+	public boolean isZero() {
+		return false;
+	}
+
+	/** 	CASTERMANE Robin
+	 * @return true if the current fraction represents an integer value
+	 */
+	public boolean isInteger() {
+		return false;
+	}
+
+	/** COTTON Victor
+	 * @return true if the current fraction is strictly less than 0
+	 */
+	public boolean isNegative() {
+		return false;
+	}
+
+	/** 	GODART Arno
+	 * Compares two fractions
+	 * @param f a non null fraction
+	 * @return true if f and the current fraction have the same value
+	 */
+	public boolean equals(Object f) {
+		return false;
+	}
+
+
+	/** 	TONGRES Cyril
+	 * Compares two fractions
+	 * @param f a non null fraction
+	 * @return a positive number if the current fraction is strictly greater than f, 
+	 * 		   a negative number if the current fraction is strictly less than f, 
+	 * 		   0 otherwise. 
+	 */
+	public int compareTo(Fraction f) {
+		return 0;
+	}
+
+	/** 	BAUDINOT Maxime
+	 * @return true if the current fraction is a unit fraction, i.e. its numerator is 1 in its reduced form
+	 */
+	public boolean isUnitFraction() {
+		return false;
+	}
+
+	/** 	BRICHANT Vincent
+	 * 
+	 * @return true if the fraction is proper, i.e. its absolute value is strictly less than 1
+	 */
+	public boolean isProperFraction() {
+		return true;
+	}
+
+	/** 	CASTERMANE Robin
+	 * 
+	 * @param f une fraction non null
+	 * @return true if the absolute value of the difference between f and the current fraction is a unit fraction
+	 */
+	public boolean isAdjacentTo(Fraction f) {
+		return true;
+	}
+
+	/** 	COTTON Victor
+	 * @return the decimal value of the fraction
+	 */
+	public double toDouble() {
+		return 0.0;
+	}
+
+	/** GODART Arno
+	 * @return a new fraction with the same value as the current one
+	 */
+	public Fraction clone() {
+		return null;
+	}
+
+}

src/main/java/tp/Fraction.java

@@ -59,7 +59,7 @@ public void setNumerator(int numerator) {
 	public int getDenominator() {
 		return denominator;
 	}
-	/** 	LEBAS Yaël
+	/** 	LEBAS Yaël
 	 * If the denominator is different from zero, the fraction is changed. 
 	 * After the operation, the fraction is reduced. 
 	 * Nothing is done in case of nul denominator for now : this will have to be change 
@@ -114,12 +114,14 @@ public Fraction soustract(Fraction f) {
 		return null;
 	}
 
-	/** 	TANG Jean-Michaël
+	/** 	TANG Jean-Michaël
 	 * Computes the produc of two fractions.  Operands are left unmodified. 
 	 * @param f a non null fraction
 	 * @return a new fraction which is the product of f and the current fraction, in its reduced form. 
 	 */
 	public Fraction multiply(Fraction f) {
+		this.numerator *= f.getNumerator();
+		this.denominator *= f.getDenominator();
 		return null;
 	}