Page 148 - CTS - CSA TP - Volume 2

COMPUTER SOFTWARE APPLICATION - CITS

EXERCISE 100 : Create and use Super class, Sub class in

JAVA

Objectives

At the end of this exercise you shall be able to
• know the use of Super class and Sub class in JAVA
• develop Java programs using Super class and Sub class.

Requirements
.Tools/Materials
• PC / laptop with windows OS
• SDK software
• Test editor (Visual studio/ subline/ notepad)

Procedure

• In object-oriented programming, the concept of inheritance allows a subclass to inherit properties and behaviors
from a superclass. Here’s a simple Java program demonstrating the usage of a superclass and its subclass
along with explanations
TASK 1. Superclass and Subclass: Vehicle and Car Classes

// Superclass
class Vehicle {
String brand;

// Constructor

Vehicle(String brand) {
this.brand = brand;
}

void displayBrand() {
System.out.println(“Brand: “ + brand);
}
}

// Subclass
class Car extends Vehicle {
int year;

// Constructor

Car(String brand, int year) {
super(brand); // Call superclass constructor
this.year = year;

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