UBS Project Engineer Interview Questions and Answers

Java 8 introduced several new features including lambda expressions, streams, and default methods.

• Lambda expressions allow for functional programming and concise code.

• Streams provide a way to process collections of data in a parallel and functional manner.

• Default methods allow for adding new functionality to interfaces without breaking existing implementations.

• Method references provide a way to refer to methods without...read more

Customised immutable java class can be written by declaring all fields as final and not providing any setters.

• Declare all fields as final

• Do not provide any setters

• Provide a constructor to initialize all fields

• Override equals() and hashCode() methods

• Make the class final

I approach dynamic objects by analyzing their behavior and adapting my approach accordingly.

• I start by understanding the nature of the dynamic object and its expected behavior

• I then analyze its movement patterns and any potential obstacles or hazards

• Based on this analysis, I adapt my approach to ensure safe and efficient interaction with the dynamic object

• For example, when working with a moving conveyor belt, I would e...read more

Implicit and explicit wait are two types of wait in Selenium used to synchronize the test execution with the application.

• Implicit wait is used to set a default waiting time for the web elements to load before throwing an exception.

• Explicit wait is used to wait for a specific condition to occur before proceeding with the test execution.

• Implicit wait is set globally for the entire test script while explicit wait is set f...read more