10+ NatWest Group Software Engineer Interview Questions and Answers

Resolve merge conflict by communicating with the other developer, reviewing changes, and using version control tools.

• Communicate with the other developer to understand their changes and discuss how to resolve the conflict.

• Review the conflicting changes in the code to identify the differences and decide which changes to keep.

• Use version control tools like Git to merge the changes manually or use tools like Git's merge tool to automatically resolve conflicts.

• Test the merged cod...read more

The 'with' keyword in Python is used for resource management and ensures that clean-up actions are performed.

• Used for managing resources like files, sockets, etc.

• Automatically closes the resource when the block of code is exited

• Helps in avoiding resource leaks and ensures proper clean-up

• Follows the context management protocol

Program to find the sum of the contiguous subarray with the largest sum in a one-dimensional array.

• Start with initializing variables for current sum and max sum as the first element of the array.

• Iterate through the array, updating current sum by adding the current element or starting a new subarray.

• Update max sum if current sum is greater, and continue until the end of the array.

• Return the max sum as the result.

Constructor creates and initializes an object, Destructor destroys an object, Generators are functions that return iterators.

• Constructor is a special method that is called when an object is created. It initializes the object's properties and allocates memory.

• Destructor is a special method that is called when an object is destroyed. It frees up any resources that the object was using.

• Generators are functions that use the yield keyword to return an iterator. They allow for lazy...read more

Python uses automatic memory management through garbage collection.

• Python uses reference counting to keep track of objects in memory.

• When an object's reference count reaches zero, it is immediately deleted.

• Python also uses a garbage collector to clean up circular references.

• Memory allocation is handled by the Python memory manager.

• Python provides tools like sys.getsizeof() to monitor memory usage.

Program for Binary Search

• Binary search is an efficient algorithm for finding an element in a sorted array.

• It works by repeatedly dividing the search space in half.

• The array must be sorted in ascending order for binary search to work.

• The algorithm compares the target value with the middle element of the array.

• If they are equal, the search is successful. If not, the search continues in the left or right half of the array.

Python is a high-level programming language used for various applications. Spark is a distributed computing framework for big data processing.

• Python is easy to learn and has a large community for support.

• Spark is used for processing large datasets and can handle data from various sources.

• Python can be used with Spark to perform data analysis and machine learning tasks.

• Spark provides APIs for programming in Java, Scala, and Python.

• Python has libraries like NumPy, Pandas, and M...read more

Java code compile process involves several steps including preprocessing, compilation, and bytecode generation.

• Java code is first preprocessed to handle import statements and macros.

• The code is then compiled into bytecode using the Java compiler (javac).

• The bytecode is platform-independent and can be executed on any Java Virtual Machine (JVM).

• During compilation, the code is checked for syntax errors and type safety.

• The compiled bytecode is stored in .class files.

• At runtime, t...read more

OOPs stands for Object-Oriented Programming. It is a programming paradigm that uses objects to represent and manipulate data.

• OOPs focuses on creating reusable code by organizing data and behavior into objects.

• It emphasizes the concepts of encapsulation, inheritance, and polymorphism.

• Objects are instances of classes, which define their properties (attributes) and behaviors (methods).

• Inheritance allows classes to inherit properties and behaviors from other classes.

• Polymorphism ...read more

Developing a new feature for the company's website to improve user experience.

• Implementing front-end changes using React.js

• Collaborating with UX designers to ensure design consistency

• Testing the feature for bugs and performance issues

JVM is a virtual machine that executes Java bytecode. JRE is a runtime environment that includes JVM and libraries. JDK is a development kit that includes JRE and tools for developing Java applications.

• JVM stands for Java Virtual Machine and is responsible for executing Java bytecode.

• JRE stands for Java Runtime Environment and includes JVM, libraries, and other components required to run Java applications.

• JDK stands for Java Development Kit and includes JRE along with tools a...read more