update,

it114105/itp3914/Lab10/Ex2/Ex2b.java

@@ -0,0 +1,24 @@
+public class Ex2b {
+    public static void main(String[] args) {
+        Student stud1 = new Student();
+        Student stud2 = new Student();
+        Student stud3 = new Student();
+
+        stud1.setId(310567);
+        stud1.setName("Cheung Siu Ming");
+        stud1.setScore(87.1);
+
+        stud2.setId(451267);
+        stud2.setName("Ng Wau Man");
+        stud2.setScore(77.5);
+
+        stud3.setId(789014);
+        stud3.setName("Wong Sui Kai");
+        stud3.setScore(83.4);
+
+        System.out.printf("Student: name=%s id=%d score=%.1f\n", stud1.getName(), stud1.getId(), stud1.getScore());
+        System.out.printf("Student: name=%s id=%d score=%.1f\n", stud2.getName(), stud2.getId(), stud2.getScore());
+        System.out.printf("Student: name=%s id=%d score=%.1f\n", stud3.getName(), stud3.getId(), stud3.getScore());
+        System.out.println("Average Score =" + (stud1.getScore()+stud2.getScore()+stud3.getScore())/ 3);
+    }    
+}

it114105/itp3914/Lab10/Ex2/Ex2c.java

@@ -0,0 +1,15 @@
+public class Ex2c {
+    public static void main(String[] args) {
+        Student[] students = new Student[3];
+        students[0] = new Student("Cheung Siu Ming", 310567, 87.1);
+        students[1] = new Student("CNg Wai Man", 451267, 77.5);
+        students[2] = new Student("Wong Sui Kai", 789014, 83.4);
+        double totalScore = 0.0;
+        for (Student student : students) {
+            student.printDetails();
+            totalScore += student.getScore();
+        }
+        System.out.println("Average Score = " + totalScore/students.length);
+
+    }    
+}

it114105/itp3914/Lab10/Ex2/Student.java

@@ -0,0 +1,41 @@
+public class Student {
+    String name;
+    int id;
+    double score;
+
+    Student(){}
+
+    Student(String name, int id, double score) {
+        this.name = name;
+        this.id = id;
+        this.score = score;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setScore(double score) {
+        this.score = score;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public double getScore() {
+        return score;
+    }
+
+    public void printDetails(){
+        System.out.println("Student: name="+name+" id=" + id + " score="+score);
+    }
+}