Today's Topic: I am picking some random topic related to java which may help in creating framework or basic understanding for a automation tester.

Constructor: Is a function having below mentioned features:

• Same name as class
• No return type
• Used to initialize the object

Types: Two types-

1. Default constructor
2. Parameterized constructor

Examples:

Default Constructor: If i want to do testing only in single browser. Then code can be like this-

import java.util.concurrent.TimeUnit;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;


class defaultConstructorTest {

    public defaultConstructorTest()
    {
        WebDriver driver ;
        System.setProperty("webdriver.chrome.driver",".\\chromedriver.exe");
        // Puts an Implicit wait, Will wait for 10 seconds before throwing
        // exception
        driver = new ChromeDriver();
        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        driver.get("https://www.blogger.com");
       
    }

}
public class constructorTest
{
    public static void main(String arg[])
    {
        defaultConstructorTest pct=new defaultConstructorTest();
       
    }

}


Parameterized Constructor:
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;


class parameterizedConstructorTest {

    public parameterizedConstructorTest(String browser)
    {
        WebDriver driver ;
        if(browser.equalsIgnoreCase("chrome"))
        {
        System.setProperty("webdriver.chrome.driver",".\\chromedriver.exe");
        // Puts an Implicit wait, Will wait for 10 seconds before throwing
        // exception
        driver = new ChromeDriver();
        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        driver.get("https://www.blogger.com");
        }
    }

}
public class constructorTest
{
    public static void main(String arg[])
    {
        parameterizedConstructorTest pct=new parameterizedConstructorTest("chrome");
      
    }

}