Lab Sheet Exercise 1 to Exercise 4

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 1/Student.java

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+
+public class Student {
+
+String name;
+String ditno;
+String address;
+
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 1/Test.java

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+public class Test {
+
+public static void main(String[] args) {
+
+Student s1 = new Student();
+
+s1.name = "Kamal";
+s1.ditno = "IT123456";
+s1.address = "Colombo";
+
+System.out.println("Student Name :" +s1.name);
+System.out.println("Student ID :" +s1.ditno);
+System.out.println("Student Address :" +s1.address);
+
+}
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 2/Student.java

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+
+public class Student {
+
+ private String name;
+ private String ditno;
+ private String address;
+ private int age;
+
+	public Student() {
+
+	name = null;
+	ditno = null;
+	address = null;
+
+	}
+
+	public Student(String name, String ditno, String address) {
+
+	this.name = name;
+	this.ditno = ditno;
+	this.address = address;
+
+
+
+	}
+
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 2/Test.java

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+
+public class Test {
+
+public static void main(String[] args) {
+
+Student s1 = new Student();
+
+Student s2 = new Student("Kamal", "IT123456", "Colombo");
+
+
+
+
+}
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 3/Student.java

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+
+public class Student {
+
+private String name;
+private String ditno;
+private String address;
+
+// Default constructor
+public Student() {
+
+name = null;
+ditno = null;
+address = null;
+}
+
+public Student(String name, String ditno, String address) {
+
+this.name = name;
+this.ditno = ditno;
+this.address = address;
+}
+
+// Getters
+
+public String getName() {
+return this.name;
+}
+
+public String getAddress() {
+return this.address;
+}
+
+public String getDit() {
+return this.ditno;
+}
+
+//Setters
+
+public void setName(String name) {
+
+this.name = name;
+}
+
+public void setAddress(String address) {
+
+this.address = address;
+}
+
+public void setDit(String ditno) {
+
+this.ditno =ditno;
+}
+
+
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 3/Test.java

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+public class Test {
+
+public static void main(String[] args) {
+
+Student s1 = new Student(); // Default constructor
+s1.setName(null);
+s1.setDit(null);
+s1.setAddress(null);
+
+System.out.println("Student Name :" +s1.getName());
+System.out.println("Student ID :" +s1.getDit());
+System.out.println("Student Address :" +s1.getAddress());
+System.out.println("");
+
+Student s2 = new Student();
+
+s2.setName("Amal");
+s2.setDit("IT258963");
+s2.setAddress("Colombo");
+
+System.out.println("Student Name :" +s2.getName());
+System.out.println("Student ID :" +s2.getDit());
+System.out.println("Student Address :" +s2.getAddress());
+
+
+}
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 4/Student.java

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+public class Student {
+
+private String name;
+private String ditno;
+private String address;
+
+// Default constructor
+public Student() {
+
+name = null;
+ditno = null;
+address = null;
+}
+
+public Student(String name, String ditno, String address) {
+
+this.name = name;
+this.ditno = ditno;
+this.address = address;
+
+}
+
+public String getName() {
+return name;
+}
+
+public String getDitno() {
+return ditno;
+}
+
+public String getAddress() {
+return address;
+}
+
+public void setName(String name) {
+
+this.name = name;
+}
+
+public void setDitno(String ditno) {
+this.ditno = ditno;
+}
+
+public void setAddress(String address) {
+this.address = address;
+}
+
+public String getDetails() {
+
+String details = "I am a Student. \nMy name is "+this.name+". \nI am from "+this.address+ ". \nMy dit no is "+this.ditno;
+return details;
+}
+
+
+}

Lab Sheets/Lab Sheet 03/Sahan -Lab 3/Exercise 4/Test.java

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+
+public class Test {
+
+public static void main(String[] args) {
+
+Student s1 = new Student();
+
+s1.setName(null);
+s1.setDitno(null);
+s1.setAddress(null);
+
+System.out.println("Student Name :" +s1.getName());
+System.out.println("Student ID :" +s1.getDitno());
+System.out.println("Student Address :" +s1.getAddress());
+System.out.println("");
+
+Student s2 = new Student();
+
+s2.setName("Avishka");
+s2.setAddress("Colombo");
+s2.setDitno("IT258963");
+
+String res = s2.getDetails();
+
+System.out.println(res);
+
+
+
+}
+
+}