Constructors in Java II Core Java II Selenium Automation

Описание: In this session you will learn about constructors and its importance in automation
Learn this concept very carefully, because we will be using this frequently when we are designing framework
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Constructor
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A constructor in Java is a special method that is used to initialize objects.

The constructor is called when an object of a class is created.

It is mostly used to set initial values for object

Default Constructor
Parametarized Constructor

Classname objectname=new Constructor();

Rules :
Constructor Name should be equal to Class name
Constructor doesn't have return type

Working of a Constructor is similar to Method

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Example program
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package Constructor_demo;

public class Employee {

String empname;
int empid;

Employee() // Default Constructor
{
empname="John";
empid=101;
}
Employee(String name, int id) // Parameterized Constructor
{
empname=name;
empid=id;
}


public static void main(String[] args)
{
Employee obj=new Employee(); // Object Creation // Calling a Default Constructor
System.out.println("Employee Name : " + obj.empname);
System.out.println("Employee ID : " + obj.empid);

Employee obj2=new Employee("Paul",102);
System.out.println("Employee Name : " + obj2.empname);
System.out.println("Employee ID : " + obj2.empid);

}

}