src/tp04/Person.java

+package tp04;
+
+public class Person {
+
+    final private int ID;
+    private String forename;
+    private String name;
+
+    private static int counter;
+
+    public Person(String forename, String name) {
+        this.forename = forename;
+        this.name = name;
+
+        this.ID = Person.counter;
+        Person.counter++;
+    }
+
+    public void setName(String newName) {
+        this.name = newName;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setForename(String newForename) {
+        this.forename = newForename;
+    }
+
+    public String getForename() {
+        return this.forename;
+    }
+
+    public int getID() {
+        return this.ID;
+    }
+
+    public String toString() {
+        return "" + this.ID + ": " + this.forename + " " + this.name;
+    }
+
+    public boolean equals(Object other) {
+        if (other == null) {
+            return false;
+        }
+        if (other.getClass() == this.getClass()) {
+            Person otherPerson = (Person) other;
+            return otherPerson.getID() == this.ID;
+        }
+        return false;
+    }
+
+}
\ No newline at end of file

src/tp04/Student.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package tp04;
+
+import java.util.Arrays;
+
+/**
+ *
+ * @author ethan
+ */
+public class Student {
+    public static final int thresholdAvg = 5;
+
+    private Person pers;
+    private double[] grades;
+
+    private int realGradeLength() {
+        int count = 0;
+        for (int i = 0; i < this.grades.length; i++) {
+            if (this.grades[i] != -1.0) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    public Student(Person pers, double[] grades) {
+        this.pers = pers;
+        this.grades = grades;
+    }
+
+    public Student(String forename, String name, double[] grades) {
+        this.pers = new Person(forename, name);
+        this.grades = grades;
+    }
+
+    public Student(String forename, String name, double grade) {
+        this.pers = new Person(forename, name);
+        this.grades = new double[]{grade};
+    }
+
+    public String getName() {
+        return this.pers.getName();
+    }
+
+    public String getForename() {
+        return this.pers.getForename();
+    }
+
+    public void setName(String newName) {
+        this.pers.setName(newName);
+    }
+
+    public void setForename(String newForename) {
+        this.pers.setForename(newForename);
+    }
+
+    public int getID() {
+        return this.pers.getID();
+    }
+
+    public String toString() {
+        String gradesString = "[";
+        for (int i = 0; i < this.grades.length; i++) {
+            gradesString += this.grades[i];
+            if (i < this.grades.length - 1) {
+                gradesString += ", ";
+            }
+        }
+        gradesString += "]]";
+        return "Student[" + this.pers + " = " + gradesString;
+    }
+
+    public double[] getGrades() {
+        return this.grades;
+    }
+
+    public boolean equals(Object other) {
+        if (other == null) {
+            return false;
+        }
+        if (other.getClass() == this.getClass()) {
+            Student otherStudent = (Student) other;
+            boolean arrayEquals = true; 
+            double[] otherStudentGrades = otherStudent.getGrades();
+            if (otherStudentGrades.length == this.grades.length) {
+                for (int i = 0; i < this.grades.length; i++) {
+                    arrayEquals = this.grades[i] == otherStudentGrades[i];
+                }
+            }
+            return otherStudent.getID() == this.pers.getID() && arrayEquals;
+        }
+        return false;
+    }
+
+    public double getAverage() {
+        double sum = 0.0;
+        for (int i = 0; i < this.grades.length; i++) {
+            if (this.grades[i] != -1.0) {    
+                sum += this.grades[i];
+            }
+        }
+        return sum / this.realGradeLength();
+    }
+
+    public void addGrade(double grade) {
+        if (this.grades.length != this.realGradeLength()) {
+            for (int i = 0; i < this.grades.length; i++) {
+                if (this.grades[i] == -1.0) {
+                    this.grades[i] = grade;
+                }
+            }
+        } else {
+            this.grades = Arrays.copyOf(this.grades, this.grades.length + 1);
+            this.grades[this.grades.length - 1] = grade;
+        }
+    }
+
+}

src/tp04/StudentAbs.java

+package tp04;
+
+public class StudentAbs {
+    public final static int thresholdAbs = 5;
+
+    private Student etu;
+    private int abs;
+    
+    public StudentAbs(Person person, double[] grades, int abs) {
+        this.etu = new Student(person, grades);
+        this.abs = abs;
+    }
+
+    public StudentAbs(String forename, String name, double[] grades, int abs) {
+        this.etu = new Student(forename, name, grades);
+        this.abs = abs;
+    }
+
+    public StudentAbs(String forename, String name, double grade, int abs) {
+        this.etu = new Student(forename, name, grade);
+        this.abs = abs;
+    }
+
+    public StudentAbs(String forename, String name, double grade) {
+        this.etu = new Student(forename, name, grade);
+        this.abs = 0;
+    }
+
+    public String getName() {
+        return this.etu.getName();
+    }
+
+    public void setName(String newName) {
+        this.etu.setName(newName);
+    }
+
+    public String getForename() {
+        return this.etu.getForename();
+    }
+
+    public void setForename(String newName) {
+        this.etu.setForename(newName);
+    }
+
+    public int getID() {
+        return this.etu.getID();
+    }
+
+    public void addGrade(double grade) {
+        this.etu.addGrade(grade);
+    }
+
+    public double[] getGrades() {
+        return this.etu.getGrades();
+    }
+
+    public double getAverage() {
+        return this.etu.getAverage();
+    }
+
+    public int getAbs() {
+        return this.abs;
+    }
+
+    public void incrAbs() {
+        this.abs++;
+    }
+
+    public String toString() {
+        return "" + this.etu + ", nbAbs=" + this.abs;
+    }
+
+    public boolean equals(Object other) {
+        if (other == null) {
+            return false;
+        }
+        if (other.getClass() == this.getClass()) {
+            StudentAbs otherStudentAbs = (StudentAbs) other;
+            double[] thisStudentGrades = this.etu.getGrades();
+            boolean arrayEquals = true;
+            double[] otherStudentGrades = otherStudentAbs.getGrades();
+            if (otherStudentGrades.length == thisStudentGrades.length) {
+                for (int i = 0; i < thisStudentGrades.length; i++) {
+                    arrayEquals = thisStudentGrades[i] == otherStudentGrades[i];
+                }
+            }
+            return this.getID() == otherStudentAbs.getID() && arrayEquals && this.getAbs() == otherStudentAbs.getAbs();
+        }
+        return false;
+    }
+
+    public boolean warning() {
+        return this.abs > StudentAbs.thresholdAbs || this.etu.getAverage() < Student.thresholdAvg;
+    }
+
+    public boolean validation() {
+        return !this.warning();
+    }
+
+
+}

src/tp04/UsePerson.java

+package tp04;
+
+public class UsePerson {
+	public static void main(String[] args) {
+		Person alice = new Person("Alice", "A");
+		Person bruno = new Person("Bruno", "B");
+		Person autre = alice;
+		boolean testsOK = true;
+		// test des getters
+		if(!alice.getForename().equals("Alice") || !alice.getName().equals("A") || !bruno.getForename().equals("Bruno") || !bruno.getName().equals("B") || !autre.getForename().equals("Alice") || !autre.getName().equals("A")) {
+			System.out.println("Erreur de méthodes GET");
+			testsOK = false;
+		}
+		// test des setters
+		alice.setForename("Anatole");
+		bruno.setName("BB");
+		if(!alice.getForename().equals("Anatole") || !alice.getName().equals("A") || !bruno.getForename().equals("Bruno") || !bruno.getName().equals("BB") || !autre.getForename().equals("Anatole") || !autre.getName().equals("A")) {
+			System.out.println("Erreur de méthodes SET");
+			testsOK = false;
+		}
+		// test du equals
+		if(alice.equals(bruno) || !alice.equals(autre)) {
+			System.out.println("Erreur de méthode equals");
+			testsOK = false;
+		}
+		if(testsOK) System.out.println("Tests de UsePerson réussis !");
+	}
+}

src/tp04/UseStudent.java

+package tp04;
+
+public class UseStudent {
+    public static void main (String[] args) {
+        Person person1 = new Person("John", "Doe");
+        Student student1 = new Student(person1, new double[]{12.5, 14.0});
+        Student student2 = new Student(person1, new double[]{12.5, 14.5});
+        Student student3 = new Student("Jane", "Smith", 14.0);
+        
+        System.out.println("student1 == student2: " + student1.equals(student2));
+        System.out.println("student1 == student3: " + student1.equals(student3));
+        System.out.println("student2 == student3: " + student2.equals(student3));
+    }
+}

src/tp04/UseYearGroup.java

+package tp04;
+
+public class UseYearGroup {
+    
+    public static void main (String[] args) {
+        
+        YearGroup yg = new YearGroup();
+
+        yg.addStudent(new StudentAbs("Alice", "A.", 18, 2));
+        yg.addStudent(new StudentAbs("Bob", "B.", 3, 2));
+        yg.addStudent(new StudentAbs("Carlos", "C.", 6, 18));
+        yg.addStudent(new StudentAbs("Dimitri", "D.", 4, 19));
+
+        yg.validation();
+
+    }
+
+}
\ No newline at end of file

src/tp04/YearGroup.java

+package tp04;
+
+import java.util.Arrays;
+
+public class YearGroup {
+    private StudentAbs[] yg;
+
+    public YearGroup() {
+        this.yg = new StudentAbs[];
+    }
+
+    public int getRealLength() {
+        int count = 0;
+        for (int i = 0; i < this.yg.length; i++) {
+            if (this.yg[i] != null) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    public void addStudent(StudentAbs student) {
+        if (this.yg.length != this.getRealLength()) {
+            for (int i = 0; i < this.yg.length; i++) {
+                if (this.yg[i] == null) {
+                    this.yg[i] = student;
+                }
+            }
+        } else {
+            this.yg = Arrays.copyOf(this.yg, this.yg.length + 1);
+            this.yg[this.yg.length - 1] = student;
+        }
+    }
+
+    public void addStudent(StudentAbs[] students) {
+        for (int i = 0; i < students.length; i++) {
+            this.addStudent(students[i]);
+        }
+    }
+
+    public void addGrades(double[] grades) {
+        for (int i = 0; i < grades.length; i++) {
+            this.yg[i].addGrade(grades[i]);
+        }
+    }
+
+    public void validation() {
+        for (int i = 0; i < this.yg.length; i++) {
+            if (this.yg[i].validation()) {
+                System.out.println(this.yg[i]);
+            }
+        }
+    }
+}