Java for Selenium - Mindmap Object, Classes and Inheritance

In the above example. We create a class bicycle which is defined by it's state and behavior.

members and methods are defined in the class. We can defined multiple objects of the class using class methods and members. 

Bicycle itself belongs to two wheeler class. Similarly there can be other class for motor bike which can have its own member and methods defined. 

Both bicycle and two wheeler can have specific methods and members defined in the class. 

Bicycle extends two wheeler which in turn extends vehicle, bicycle can use members and methods defined in two wheeler as well as vehicle class.

Class Declaration

class Bicycle extends TwoWheeler {
    // field, method and constructordeclarations
}

class TwoWheeler extends Vehicle {
    // field, method and constructordeclarations
}

Variables in a class:

Fields - Member variables in class
Local variable - defined inside method or block of scope
Parameters - variables in method declaration

Variable declaration : [Modifier] Type variablename

Adding dependencies to maven for selenium

To add dependencies in maven project for running selenium tests, we can add dependencies under dependencies section as shown below:

1. Go to https://mvnrepository.com

2. Add Below dependencies:

a. TestNG

<dependency>
    <groupId>org.testng</groupId>
    <artifactId>testng</artifactId>
    <version>6.13.1</version>
    <scope>test</scope>
</dependency>

b. Selenium-java

<dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-java</artifactId>
    <version>3.8.1</version>
</dependency>

c. Selenium chrome driver

<dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-chrome-driver</artifactId>
    <version>3.8.1</version>
</dependency>

3. All the other dependencies related to selenium can be found at:
http://www.mvnrepository.com/artifact/org.seleniumhq.selenium

4. The dependencies are associated with the tests and downloaded at m2 folder in users folder

Sending keys in selenium

In Selenium, we are send specific keys from the keyboard like Enter or F2 on WebElement using import org.openqa.selenium.Keys as shown below:

import org.openqa.selenium.Keys

WebElement.sendKeys(Keys.ENTER)

Below is the list of enum constants defined for enum Keys, which we can send on an element in selenium:

ADD 
ALT 
ARROW_DOWN 
ARROW_LEFT 
ARROW_RIGHT 
ARROW_UP 
BACK_SPACE 
CANCEL 
CLEAR 
COMMAND 
CONTROL 
DECIMAL 
DELETE 
DIVIDE 
DOWN 
END 
ENTER 
EQUALS 
ESCAPE 
F1 
F10 
F11 
F12 
F2 
F3 
F4 
F5 
F6 
F7 
F8 
F9 
HELP 
HOME 
INSERT 
LEFT 
LEFT_ALT 
LEFT_CONTROL 
LEFT_SHIFT 
META 
MULTIPLY 
NULL 
NUMPAD0 
NUMPAD1 
NUMPAD2 
NUMPAD3 
NUMPAD4 
NUMPAD5 
NUMPAD6 
NUMPAD7 
NUMPAD8 
NUMPAD9 
PAGE_DOWN 
PAGE_UP 
PAUSE 
RETURN 
RIGHT 
SEMICOLON 
SEPARATOR 
SHIFT 
SPACE 
SUBTRACT 
TAB 
UP 
ZENKAKU_HANKAKU 

For further details, please see the Page: https://seleniumhq.github.io/selenium/docs/api/java/org/openqa/selenium/Keys.html