Скачать или смотреть Constructors in Java II Core Java II Selenium Automation

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);

}

}