Add Comments to Lab sheet 3 Exercises

Author: pasindulakshan

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 1/Test.java

@@ -1,15 +1,19 @@
 public class Test {
  public static void main(String[] args) {
+ // Create Students Objects
  Student s1 = new Student();
  Student s2 = new Student();
 
+ // Assign values to the objects
  s1.name = "Pasindu";
  s1.ditno = "IT20123456";
  s1.address = "Galle";
 
  s2.name = "Lakshan";
  s2.ditno = "IT20123457";
  s2.address = "Matara";
+
+ // Display the values
  System.out.println("Student 1");
  System.out.println("Name: " + s1.name + "\nDitno: " + s1.ditno + "\nAddress: " + s1.address + "\n");
  System.out.println("Student 2");

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 2/Student.Java

@@ -3,13 +3,13 @@ public class Student {
  private String ditno;
  private String address;
 
-
+ //default constructor
  public Student() {
  this.name = null;
  this.ditno = null;
  this.address = null;
  }
-
+ //constructor with parameters
  public Student(String name, String ditno, String address) {
  this.name = name;
  this.ditno = ditno;

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 2/Test.java

@@ -1,5 +1,6 @@
 public class Test {
  public static void main(String[] args) {
+ //Create Objects using the constructor
  Student s1 = new Student("Pasindu","IT20123456","Galle");
  Student s2 = new Student("Lakshan","IT20123457","Matara");
  }

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 3/Student.Java

@@ -3,18 +3,20 @@ public class Student {
  private String ditno;
  private String address;
 
-
+ //default constructor
  public Student() {
  this.name = null;
  this.ditno = null;
  this.address = null;
  }
-
+ //constructor with parameters
  public Student(String name, String ditno, String address) {
  this.name = name;
  this.ditno = ditno;
  this.address = address;
  }
+
+ //Mutator methods
  public void setName(String name) {
  this.name = name;
  }
@@ -24,6 +26,8 @@ public class Student {
  public void setAddress(String address) {
  this.address = address;
  }
+ 
+ //Accessor methods
  public String getName() {
  return this.name;
  }

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 3/Test.java

@@ -1,10 +1,14 @@
 public class Test {
  public static void main(String[] args) {
+ //Create Objects using the constructor
  Student s1 = new Student("Pasindu","IT20123456","Galle");
 
+ //Change values using mutator methods
  s1.setName("Lakshan");
  s1.setDitno("IT20657567");
  s1.setAddress("Colombo");
+ 
+ //Dislplay changed values
  System.out.println("Name: " + s1.getName()+ "\nDitno: " + s1.getDitno() + "\nAddress: " + s1.getAddress());
  }
 }

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 4/Student.Java

@@ -3,18 +3,20 @@ public class Student {
  private String ditno;
  private String address;
 
-
+ //default constructor
  public Student() {
  this.name = null;
  this.ditno = null;
  this.address = null;
  }
-
+ //constructor with parameters
  public Student(String name, String ditno, String address) {
  this.name = name;
  this.ditno = ditno;
  this.address = address;
  }
+
+ //Mutator methods
  public void setName(String name) {
  this.name = name;
  }
@@ -24,6 +26,8 @@ public class Student {
  public void setAddress(String address) {
  this.address = address;
  }
+ 
+ //Accessor methods
  public String getName() {
  return this.name;
  }

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 4/Test.java

@@ -1,7 +1,9 @@
 public class Test {
  public static void main(String[] args) {
+ //Create Objects using the constructor
  Student s1 = new Student("Pasindu","IT20123456","Galle");
 
+ //Desplay Values using getDetails() method
  System.out.println(s1.getDetails());
  }
 }