Mock Interview for Automation Testers – Tips to Crack It | Real Scenarios Discussed

12/3/24 •

Summaries by topic

• English

This mock interview assesses a candidate's Java programming skills for an automation tester role. The interview covers various Java concepts, including variable types, keywords, exception handling, inheritance, and array manipulation, demonstrating the candidate's understanding of core Java principles and their practical application in an automation testing context.

Local, Global, & Final Variables

• 00:00:06 Local variables are declared within a method and have a limited scope, requiring initialization. Global variables are declared within a class, have a broader scope, and have default values. Final variables are prefixed with 'final' and cannot be changed after initialization, applicable to both local and global variables.

Assert Keyword

• 00:02:08 The 'assert' keyword is used in Java to verify conditions during runtime. By default, it is disabled and needs to be enabled through run configurations and arguments. This feature allows developers to debug code effectively by validating expected behavior within their programs.

Extends & Implements Keywords

• 00:05:40 The 'extends' keyword is used for inheritance between classes, while 'implements' is used when a class implements an interface. Interfaces define abstract methods that must be implemented by the class. Interfaces can also extend other interfaces.

Multiple Inheritance

• 00:06:22 Multiple inheritance, where a class inherits from multiple parent classes, is not directly supported in Java due to the diamond problem, which can cause ambiguity in constructor calls. However, multiple inheritance can be achieved through interfaces, which do not face this issue.

For & While Loops

• 00:07:14 For loops are used when the number of iterations is known beforehand, while while loops are preferred when the number of iterations is unknown and depends on a condition. For loops have a defined syntax, including initialization, condition, and increment, whereas while loops focus on the condition, with the increment often handled within the loop body.