-Initial Commit - Completed Project

Student Grading System.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

src/Comparators/FinalMarks.java

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+package Comparators;
+
+import StudentClass.*;
+import java.util.Comparator;
+
+/* Comparator added as the Student class does not implement comparable
+       so to compare a class which does not implement comparable you should
+       add a comparator*/
+
+public class FinalMarks implements Comparator<Student> {
+
+    /* An overridden method in the super class Object.
+       The method has two arguments where two objects
+       of Student must be given then the method will
+       compare the final marks of the compared students.
+     */
+    @Override
+    public int compare (Student o1, Student o2){
+        return o1.getFinalMarks() - o2.getFinalMarks();
+    }
+}

src/Comparators/LastName.java

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+package Comparators;
+
+import java.util.Comparator;
+import StudentClass.*;
+
+/* Comparator added as the Student class does not implement comparable
+       so to compare a class which does not implement comparable you should
+       add a comparator*/
+
+public class LastName implements Comparator <Student> {
+
+    /* An overridden method in the super class Object.
+       The method has two arguments where two objects
+       of Student must be given then the method will
+       compare the last name of the compared students.
+     */
+    @Override
+    public int compare (Student o1, Student o2){
+        return o1.getlName().compareTo(o2.getlName());
+    }
+}

src/Enum/Grade.java

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+package Enum;
+
+/* This is an enum which is like our own string
+   which will only contain the values which are mentioned
+   below
+ */
+public enum Grade {
+    First_Class, Second_Upper_Class, Second_Lower_Class, General_Pass, Fail_Resit, Fail_Retake
+}

src/GUI/Horizontal_View.java

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+package GUI;
+
+import GUI.StarCreation.Horizontal_Star;
+import StudentClass.Student;
+import StudentTester.Test;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class Horizontal_View extends JFrame {
+    public Horizontal_View() {
+        super("Overall Marks in Horizontal Histogram");
+        setSize(450, 350);
+
+        JPanel mainPanel = new JPanel();
+        mainPanel.setLayout(new BorderLayout());
+        add(mainPanel);
+
+        JPanel subPanel1 = new JPanel();
+        JLabel header = new JLabel("Horizontal Histogram");
+        subPanel1.add(header);
+        mainPanel.add(subPanel1, BorderLayout.PAGE_START);
+
+        JPanel subPanel2 = new JPanel();
+        subPanel2.setLayout(new GridLayout(4, 1));
+
+        JLabel lbl1 = new JLabel(" 0 - 29");
+        JLabel lbl2 = new JLabel("30 - 39");
+        JLabel lbl3 = new JLabel("40 - 69");
+        JLabel lbl4 = new JLabel("70 - 100");
+
+        subPanel2.add(lbl1);
+        subPanel2.add(lbl2);
+        subPanel2.add(lbl3);
+        subPanel2.add(lbl4);
+
+        mainPanel.add(subPanel2, BorderLayout.LINE_START);
+
+        JPanel subPanel3 = new JPanel();
+        subPanel3.setLayout(new GridLayout(4, 1));
+
+        int num1 = 0;
+        int num2 = 0;
+        int num3 = 0;
+        int num4 = 0;
+        for (Student student : Test.students) {
+            if (student.getFinalMarks() < 30) num1++;
+            else if (student.getFinalMarks() < 40) num2++;
+            else if (student.getFinalMarks() < 70) num3++;
+            else num4++;
+        }
+        subPanel3.add(new Horizontal_Star(num1));//Adding stars
+        subPanel3.add(new Horizontal_Star(num2));//Adding stars
+        subPanel3.add(new Horizontal_Star(num3));//Adding stars
+        subPanel3.add(new Horizontal_Star(num4));//Adding stars
+        mainPanel.add(subPanel3, BorderLayout.CENTER);
+
+        JLabel noOfStds = new JLabel("Total number of students : " + Test.students.size());
+        mainPanel.add(noOfStds, BorderLayout.PAGE_END);
+
+        setVisible(true);
+        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+    }
+}

src/GUI/StarCreation/Horizontal_Star.java

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+package GUI.StarCreation;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class Horizontal_Star extends JPanel {
+
+    private int nStars = 0;
+
+    // Overridden paint method to paint our own string
+    @Override
+    public void paint(Graphics g) {//Using graphics to display the stars
+        Graphics2D g2d = (Graphics2D) g;
+        for (int i = 0; i < nStars; i++) {
+            g2d.setFont(new Font("TimesRoman", Font.BOLD, 20));
+            g2d.setColor(Color.BLACK);
+            g2d.drawString("*", 20 + (i * 10), 45);
+        }
+    }
+
+    // Non Default constructor
+    public Horizontal_Star(int list) {
+        this.nStars = list;
+    }
+}

src/GUI/StarCreation/Vertical_Star.java

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+package GUI.StarCreation;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class Vertical_Star extends JPanel {
+
+    private int nStars = 0;
+
+    // Overridden paint method to paint our own string
+    @Override
+    public void paint(Graphics g) {//Using graphics to display the stars
+        Graphics2D g2d = (Graphics2D) g;
+        for (int i = 0; i < nStars; i++) {
+            g2d.setFont(new Font("TimesRoman", Font.BOLD, 20));
+            g2d.setColor(Color.BLACK);
+            g2d.drawString("*", 15, 20 + (i * 10));
+        }
+    }
+
+    // Non Default constructor
+    public Vertical_Star(int list) {
+        this.nStars = list;
+    }
+}

src/GUI/Vertical_View.java

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+package GUI;
+
+import GUI.StarCreation.Vertical_Star;
+import StudentClass.Student;
+import StudentTester.Test;
+import javax.swing.*;
+import java.awt.*;
+
+public class Vertical_View extends JFrame {
+    public Vertical_View() {
+        super("Overall Marks in Vertical Histogram");
+        setSize(450, 350);
+
+        JPanel mainPanel = new JPanel();
+        mainPanel.setLayout(new BorderLayout());
+        add(mainPanel);
+
+
+        JPanel subPanel1 = new JPanel();
+        subPanel1.setLayout(new GridLayout(1, 4));
+
+        JLabel lbl1 = new JLabel(" 0 - 29");
+        JLabel lbl2 = new JLabel("30 - 39");
+        JLabel lbl3 = new JLabel("40 - 69");
+        JLabel lbl4 = new JLabel("70 - 100");
+
+        subPanel1.add(lbl1);
+        subPanel1.add(lbl2);
+        subPanel1.add(lbl3);
+        subPanel1.add(lbl4);
+
+        mainPanel.add(subPanel1, BorderLayout.PAGE_START);
+
+        JPanel subPanel2 = new JPanel();
+        subPanel2.setLayout(new GridLayout(1, 4));
+
+        int num1 = 0;
+        int num2 = 0;
+        int num3 = 0;
+        int num4 = 0;
+        for (Student student : Test.students) {
+            if (student.getFinalMarks() < 30) num1++;
+            else if (student.getFinalMarks() < 40) num2++;
+            else if (student.getFinalMarks() < 70) num3++;
+            else num4++;
+        }
+        subPanel2.add(new Vertical_Star(num1));//Adding stars
+        subPanel2.add(new Vertical_Star(num2));//Adding stars
+        subPanel2.add(new Vertical_Star(num3));//Adding stars
+        subPanel2.add(new Vertical_Star(num4));//Adding stars
+        mainPanel.add(subPanel2, BorderLayout.CENTER);
+
+        JLabel noOfStds = new JLabel("Total number of students : " + Test.students.size());
+        mainPanel.add(noOfStds, BorderLayout.PAGE_END);
+
+        setVisible(true);
+        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+    }
+}

src/StudentClass/Student.java

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+package StudentClass;
+
+import Enum.*;
+import java.io.Serializable;
+
+public class Student implements Serializable {
+
+    // Encapsulating data fields so they cannot be accessed directly
+    private String fName;
+    private String lName;
+    private int regNo;
+    private int ict_01_marks;
+    private int ict_02_marks;
+    private int cw_01_marks;
+    private int cw_02_marks;
+    private int finalMarks;
+    private Grade grade;
+
+    // Default Constructor. I have added this cause this improves coding standards
+    public Student() {
+
+    }
+
+    // Non default constructor
+    public Student(String fName, String lName, int regNo, int ict_01_marks,
+                   int ict_02_marks, int cw_01_marks, int cw_02_marks) {
+        this.fName = fName;
+        this.lName = lName;
+        this.regNo = regNo;
+        this.ict_01_marks = ict_01_marks;
+        this.ict_02_marks = ict_02_marks;
+        this.cw_01_marks = cw_01_marks;
+        this.cw_02_marks = cw_02_marks;
+        this.finalMarks = this.getFinalMarks();
+        this.grade = this.getGrade();
+    }
+
+    // Getter and Setter methods
+    public String getfName() {
+        return fName;
+    }
+
+    public void setfName(String fName) {
+        this.fName = fName;
+    }
+
+    public String getlName() {
+        return lName;
+    }
+
+    public void setlName(String lName) {
+        this.lName = lName;
+    }
+
+    public int getRegNo() {
+        return regNo;
+    }
+
+    public void setRegNo(int regNo) {
+        this.regNo = regNo;
+    }
+
+    public int getIct_01_marks() {
+        return ict_01_marks;
+    }
+
+    public int getIct_02_marks() {
+        return ict_02_marks;
+    }
+
+    public int getCw_01_marks() {
+        return cw_01_marks;
+    }
+
+    public int getCw_02_marks() {
+        return cw_02_marks;
+    }
+
+    public int getFinalMarks() {
+        this.finalMarks = (int) Math.round((this.ict_01_marks * 0.2) +
+                (this.ict_02_marks * 0.2) + (this.cw_01_marks * 0.3) +
+                (this.cw_02_marks * 0.3));
+        return finalMarks;
+    }
+
+    public Grade getGrade() {
+        if ((((this.ict_01_marks + this.ict_02_marks) / 2) >= 30) &&
+                this.cw_01_marks >= 30 && this.cw_02_marks >= 30
+                && this.finalMarks >= 40) {
+            if (this.finalMarks >= 70) {
+                this.grade = Grade.First_Class;
+            } else if (this.finalMarks >= 60) {
+                this.grade = Grade.Second_Upper_Class;
+            } else if (this.finalMarks >= 50) {
+                this.grade = Grade.Second_Lower_Class;
+            } else {
+                this.grade = Grade.General_Pass;
+            }
+        } else if (this.finalMarks >= 30) {
+            this.grade = Grade.Fail_Resit;
+        } else {
+            this.grade = Grade.Fail_Retake;
+        }
+        return grade;
+    }
+}