Page 128 - CTS - CSA TP - Volume 2

COMPUTER SOFTWARE APPLICATION - CITS

}
public class Employee_Demo {
public static void main(String[] args) {

// Creating an instance of Employee using the parameterized constructor
Employee employee = new Employee(“John”, 50000);

// Displaying employee details

employee.displayDetails();
}
}

Output:

Explanation:
• In this program, we define a class Employee with attributes name and salary.

• We provide a parameterized constructor for the Employee class, which initializes the name and salary attributes
with the values passed as arguments.
• In the main method, we create an instance of the Employee class using the parameterized constructor, passing
values for the name and salary.
• We call the displayDetails method of the Employee class to display the employee details.
These examples demonstrate the use of different types of constructors in Java. Constructors are used to initialize
the state of objects during their creation. Default constructors initialize the attributes to default values, while
parameterized constructors allow us to initialize the attributes with specific values. Understanding and using
constructors effectively is essential for object-oriented programming in Java.

TASK 2: Parameterized Constructor in a Rectangle Class

// Area of a rectangle using Parameterized Constructor
class Rectangle {
double length;
double width;
// Parameterized constructor

Rectangle(double length, double width) {
this.length = length;

113
CITS : IT & ITES - Computer Software Application - Exercise 97