China National Petroleum Corporation Consultant Interview Questions and Answers

Q1. Explain Oops concepts?
Ans. 
OOPs concepts refer to Object-Oriented Programming principles like 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 detail
Answered by AI
Add your answer
Q2. How we can handle exception in springboot?
Ans. 
Exceptions in Spring Boot can be handled using @ExceptionHandler annotation, @ControllerAdvice annotation, and custom exception classes.
• Use @ExceptionHandler annotation to handle exceptions at the controller level.

• Use @ControllerAdvice annotation to handle exceptions globally across all controllers.

• Create custom exception classes by extending RuntimeException or Exception classes and use them to handle specific excepti...read more
Answered by AI
Add your answer

Q1. Explain Spring MVC?
Ans. 
Spring MVC is a framework for building web applications in Java, based on the Model-View-Controller design pattern.
• Spring MVC provides a way to structure your web application using a Model-View-Controller architecture.

• It allows for easy integration with other Spring frameworks like Spring Boot and Spring Security.

• Controllers handle incoming requests, process them, and return a response.

• Views are responsible for renderi...read more
Answered by AI
Add your answer

Q1. Asked about your Ctc , why you are looking for change?
Add your answer

Q1. Technical details & questions
Add your answer

Q1. Previous company related & salary
Add your answer

Q1. How many html heading elements
Ans. 
There are 6 HTML heading elements, from h1 to h6.
• There are 6 heading elements in HTML: h1, h2, h3, h4, h5, h6

• The h1 element is the highest level heading and h6 is the lowest level heading

• Heading elements are used to define the structure of a webpage
Answered by AI
Add your answer

Q1. Print the largest string from the given 5 strings
Ans. 
Find the largest string from a given array of 5 strings
• Iterate through the array of strings and compare the length of each string

• Keep track of the largest string found so far

• Return the largest string at the end
Answered by AI
Add your answer
Q2. Check if the required dropdown option is displayed or not
Ans. 
Use Selenium WebDriver to locate the dropdown element and check if the required option is displayed
• Locate the dropdown element using Selenium WebDriver

• Use the Select class to interact with the dropdown

• Verify if the required option is displayed using isSelected() method
Answered by AI
Add your answer

Q1. What are your viewpoint on sales
Ans. 
Sales is about building relationships and providing solutions to customers' needs.
• Sales is not just about pushing products, but understanding the customer's pain points and offering solutions

• It involves building trust and rapport with customers

• Sales requires effective communication and active listening skills

• It is important to have a deep knowledge of the product or service being sold

• Sales is a continuous process of id...read more
Answered by AI
Add your answer
Q2. Ways of promoting the products
Ans. 
Promoting products can be done through various channels such as advertising, social media, events, and partnerships.
• Advertising through various mediums such as TV, radio, print, and online

• Utilizing social media platforms to reach a wider audience and engage with customers

• Hosting events such as product launches, demos, and workshops to showcase the product and create buzz

• Forming partnerships with complementary brands or...read more
Answered by AI
Add your answer

Q1. Oops concept ,Interface ,wrapper class,
Add your answer
Q2. Coding Round
Add your answer

String related questions