10+ Nasser S. Al Hajri Corporation Interview Questions and Answers

This is a list of programming concepts and terms.

• C tokens are the basic building blocks of C programming language.

• Encapsulation is the process of hiding implementation details and exposing only necessary information.

• Polymorphism is the ability of an object to take on many forms.

• Array is a collection of similar data types.

• Pointers are variables that store the memory address of another variable.

• Applet is a small program that runs within a web browser.

• Java is a high-level progra...read more

Method overriding involves creating a new implementation of a method in a subclass, while method overloading involves creating multiple methods with the same name but different parameters in the same class.

• Method overriding is used to provide a specific implementation of a method that is already provided by its superclass.

• Method overloading is used to create multiple methods with the same name but different parameters within the same class.

• In method overriding, the method sig...read more

To cut a cake into 8 equal parts using 3 cuts, make two cuts horizontally and one cut vertically through the center.

• Make two cuts horizontally to divide the cake into 4 equal parts.

• Then make one vertical cut through the center to divide each half into 2 equal parts.

• You will have 8 equal parts of the cake with 3 cuts in total.

findelement returns the first matching element on the page, find elements returns a list of all matching elements.

• findelement is used to locate a single element on a web page

• find elements is used to locate multiple elements on a web page

• findelement throws an exception if no matching element is found

• find elements returns an empty list if no matching elements are found

• Example: WebElement element = driver.findElement(By.id("exampleId"));

• Example: List elements = driver.findElemen...read more

A program to count occurrences of characters in a string.

• Create a dictionary to store the count of each character.

• Iterate through the string and update the count in the dictionary.

• Print the count of each character in the dictionary.

Programming development is the process of creating software programs using programming languages and tools.

• Programming development involves designing, coding, testing, and debugging software programs.

• It requires knowledge of programming languages such as Java, Python, C++, etc.

• Developers use various tools such as Integrated Development Environments (IDEs) and version control systems to aid in the development process.

• Examples of programming development include creating web app...read more

Code to navigate back and refresh

• Use driver.navigate().back() to navigate back

• Use driver.navigate().refresh() to refresh the page

In Java, an interface is a reference type that can contain only constants, method signatures, default methods, static methods, and nested types.

• Interfaces in Java are similar to classes but they provide a way to achieve abstraction and multiple inheritance.

• Interfaces are declared using the 'interface' keyword.

• Classes can implement multiple interfaces, but they can only extend one class.

• Interfaces can have methods without a body, which must be implemented by the class that imp...read more

Assert is used to validate the expected result while verify is used to check the actual result without stopping the execution.

• Assert is used to validate the expected result in a test case

• Verify is used to check the actual result without stopping the execution

• Assert will stop the execution if the validation fails

• Verify will continue with the test case execution even if the verification fails

final is a keyword used to declare constants in Java, while finally is a block of code used in exception handling to ensure cleanup tasks are always executed.

• final is used to declare constants in Java

• finally is a block of code used in exception handling to ensure cleanup tasks are always executed

• final variables cannot be reassigned, while finally block always executes regardless of exception handling

Microservice architecture is an architectural style that structures an application as a collection of loosely coupled services.

• Each service is self-contained and can be deployed independently.

• Services communicate with each other over lightweight protocols like HTTP or messaging queues.

• Each service is responsible for a specific business function.

• Microservices can be developed, deployed, and scaled independently.

• Examples: Netflix, Amazon, Uber

Object-oriented programming (OOP) is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Inheritance allows a class to inherit properties and be...read more

Collision is when two or more objects come into contact with each other, often resulting in a change in their motion or state.

• Collision can occur in various fields such as physics, engineering, and computer science.

• In physics, collision refers to the interaction between two or more particles or objects, where momentum and energy are transferred.

• In engineering, collision may refer to the impact between two vehicles or structures.

• In computer science, collision can occur in hash...read more

Program to reverse a string using array of characters

• Create an array of characters to store the input string

• Iterate through the input string and store each character in the array

• Iterate through the array in reverse order to construct the reversed string