OCBC Bank Interview Questions and Answers

Array is a fixed-size data structure while ArrayList is a dynamic-size data structure in Java.

• Array is a fixed-size collection of elements of the same data type, while ArrayList is a dynamic-size collection that can grow or shrink.

• Arrays can store primitive data types and objects, while ArrayList can only store objects.

• Arrays require a specified size during initialization, while ArrayList can dynamically resize it...read more

I usually use the MVC (Model-View-Controller) design pattern in my projects.

• Separates the application into three main components: Model (data), View (UI), and Controller (logic)

• Promotes code reusability, modularity, and maintainability

• Examples: Laravel framework in PHP, Spring framework in Java

ref is used for passing a variable by reference, out is used for returning a variable by reference

• ref is used for passing a variable by reference, allowing the method to modify the variable

• out is used for returning a variable by reference, typically used for returning multiple values from a method

• Example: int x = 10; SomeMethod(ref x); // x can be modified inside SomeMethod

• Example: int result; SomeMethod(out resul...read more

Concurrent projects require prioritization and effective communication with stakeholders.

• Prioritize projects based on their importance and urgency

• Create a project plan with clear timelines and milestones

• Communicate regularly with stakeholders to keep them informed of progress and any changes

• Delegate tasks to team members and ensure they have the necessary resources and support

• Monitor progress and adjust plans as n...read more

The best practice design pattern for software testing is the Page Object Model (POM).

• POM separates the test logic from the UI, making tests more maintainable and reusable.

• It improves test readability and reduces code duplication.

• POM promotes modularity and allows for easier test maintenance and scalability.

• It enhances collaboration between developers and testers.

• Example: Using POM, each page of a web application i...read more