10+ Shree Sai Erectors Interview Questions and Answers

Diamond problem occurs in multiple inheritance where two superclasses have a common method.

• Java doesn't support multiple inheritance to avoid diamond problem.

• Diamond problem can be solved using interfaces.

• Example: class A and class B both have a method named 'display', class C extends A and B, now if we call display() from C, which method will be called?

• To avoid ambiguity, Java uses interfaces to achieve multiple inheritance.

OOPS stands for Object-Oriented Programming System. It is a programming paradigm that uses objects to represent real-world entities.

• OOPS allows for modular and reusable code.

• It provides a clear structure and organization to the code.

• Encapsulation, inheritance, and polymorphism are key concepts in OOPS.

• Example: In an Android app, each screen can be represented as an object with its own properties and behaviors.

• OOPS promotes code reusability and maintainability.

Intent is a messaging object used to request an action from another app component.

• Intents facilitate communication between components in an app or between different apps.

• They can be used to start activities, services, and broadcast receivers.

• Intents can also carry data between components using extras and data URIs.

• Explicit intents specify the component to start by name, while implicit intents describe the desired action and data type.

• Examples of intents include opening a web ...read more

An interface is a contract between two objects that defines the communication between them.

• An interface is a collection of abstract methods.

• It is used to achieve abstraction and multiple inheritance in Java.

• Interfaces are implemented by classes.

• Example: OnClickListener interface in Android.

• Interfaces are used to create loosely coupled systems.

Armstrong number is a number that is equal to the sum of its own digits raised to the power of the number of digits.

• Create a function to check if a number is an Armstrong number by calculating the sum of its digits raised to the power of the number of digits.

• Implement a function to check if a number is a palindrome by comparing it to its reverse.

• Write a function to generate Fibonacci numbers up to a certain limit and check if a number is in the Fibonacci sequence.

Running projects in a company requires selecting the appropriate technology for the project.

• Consider the project requirements and constraints

• Evaluate available technologies and their suitability

• Choose the technology that best fits the project needs

• Ensure the technology is compatible with existing systems

• Train team members on the selected technology

I have worked on developing web applications using Angular framework.

• Developed responsive web applications using Angular framework

• Implemented data binding, routing, and services in Angular applications

• Utilized Angular CLI for project setup and management

Areas of interest in L&D include leadership development, employee engagement, training effectiveness, and learning technologies.

• Leadership development programs

• Employee engagement strategies

• Training effectiveness assessments

• Implementing learning technologies

• Designing and delivering soft skills training

• Creating onboarding programs for new hires

Reverse an array of strings

• Create a new array to store the reversed strings

• Iterate through the original array in reverse order and add each element to the new array

• Return the new array as the reversed version of the original array

Reverse a string

• Create a new empty string

• Iterate through the original string from end to start and append each character to the new string

• Return the new reversed string