The following figure shows a UML diagram in which the class Student is inherited
ID: 3788854 • Letter: T
Question
The following figure shows a UML diagram in which the class Student is inherited from the class Person. Implement the two classes. Write a demo program that tests all the methods in the Student class as well as the inherited methods. Note: In the toString method in the Student class, use the method getName() to get the name.
*I am using JGrasp so please make sure it is compatible
*Please comment throughout code
Exercise 3: The following figure shows a UML diagram in which the class student is inherited from the class Person Person name: String Person setName (String newName) void getName String toString String has SameName (Person another Person) boolean Student student Number: int Student reset (String newName int newNumber) void get StudentNumber int setstudent Number (int n) void tostring String equals (Student another Stuent) booleanExplanation / Answer
StudentDemo.java
public class StudentDemo {
public static void main(String[] args) {
Student s = new Student();
s.reset("Suresh",100);
System.out.println(s);
Student s1 = new Student();
s1.reset("Ssekhar",101);
System.out.println(s1);
Student s2 = new Student();
s2.reset("Suresh",100);
System.out.println(s2);
System.out.println("Object s and s1 equal: "+s.equals(s1));
System.out.println("Object s and s2 equal: "+s.equals(s2));
}
}
Student.java
public class Student extends Person{
private int studentNumber;
public Student(){
}
public int getStudentNumber() {
return studentNumber;
}
public void setStudentNumber(int studentNumber) {
this.studentNumber = studentNumber;
}
public void reset(String newName, int newNumber){
super.setName(newName);
this.studentNumber = newNumber;
}
public String toString(){
return super.toString()+" Number: "+getStudentNumber();
}
public boolean equals(Student s){
if(hasSameName(this) && getStudentNumber() == s.getStudentNumber()){
return true;
}
return false;
}
}
Person.java
public class Person {
private String name;
public Person(){
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String toString(){
return "Name: "+getName();
}
public boolean hasSameName(Person p){
if(getName().equalsIgnoreCase(p.name)){
return true;
}
return false;
}
}
Output:
Name: Suresh Number: 100
Name: Ssekhar Number: 101
Name: Suresh Number: 100
Object s and s1 equal: false
Object s and s2 equal: true
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