Automation Test Specialist Interview Questions and Answers

Abstract class can have both abstract and non-abstract methods, while Interface can only have abstract methods.

• Abstract class can have constructors, fields, and methods, while Interface cannot have any implementation.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to provide a common base for multiple classes, while Interfaces are used to define a contract for classes to implement.

• Example: Abstract class 'Shape'...read more

Oops concepts refer to Object-Oriented Programming principles such as Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.

Java can interact with Excel files using libraries like Apache POI or JExcelAPI for reading and writing data.

• Use Apache POI library for reading/writing Excel files. Example: Workbook workbook = new XSSFWorkbook();

• To read data: Sheet sheet = workbook.getSheetAt(0); Row row = sheet.getRow(0); Cell cell = row.getCell(0);

• To write data: Cell cell = row.createCell(1); cell.setCellValue('Hello World');

• Add Maven dependency for Apache POI: <dependency><groupId>org.apache.poi</groupId>...read more

Selenium is a tool for automating web browsers and Rest Assured is a Java library for testing RESTful APIs.

• Selenium can be used for UI testing and automating browser interactions

• Rest Assured can be used for API testing and validating responses

• Both tools can be integrated for end-to-end testing of web applications