10+ Software Engineer Analyst Interview Questions and Answers

Spread operator is used to spread the elements of an iterable object into a new array or object.

• Spread operator is denoted by three dots (...)

• It can be used with arrays, objects, and function arguments

• It simplifies the code and makes it more readable

• Example: const arr1 = [1, 2, 3]; const arr2 = [...arr1, 4, 5]; // [1, 2, 3, 4, 5]

• Example: const obj1 = {a: 1, b: 2}; const obj2 = {...obj1, c: 3}; // {a: 1, b: 2, c: 3}

Sort an array of objects by id without for loop

• Use Array.sort() method with a compare function

• Compare the id property of each object

• Return -1, 0, or 1 based on comparison

JCL stands for Job Control Language. To restart a job after a failed step, we can use the RESTART parameter in JCL.

• JCL is used to control batch jobs on IBM mainframe computers.

• RESTART parameter can be used to restart a job from a specific step.

• We can also use the COND parameter to skip the failed step and continue with the next step.

• JCL also allows for conditional execution of steps based on the success or failure of previous steps.

OOPs is a programming paradigm that uses objects to represent real-world entities. Syntax refers to the rules of a programming language. Libraries are pre-written code that can be used in a program.

• OOPs stands for Object-Oriented Programming.

• Syntax refers to the rules of a programming language, such as how to write code and use keywords.

• Libraries are pre-written code that can be used in a program to perform specific tasks, such as reading and writing files or connecting to a ...read more

The sentence you hear in an AI tool

• AI tool: 'Hello, how can I assist you today?'

• AI tool: 'Please provide your query for me to analyze.'

• AI tool: 'I am here to help with any questions you may have.'

Sudo is a command in Linux that allows users to execute commands with elevated privileges.

• Sudo stands for 'superuser do'

• It is used to perform administrative tasks without logging in as the root user

• Syntax: sudo [command]

• Example: sudo apt-get update

• Sudo logs all commands and arguments in /var/log/auth.log

Create a stock without using built-in library

• Create a class Stock with attributes like name, price, quantity, etc.

• Implement methods like buy, sell, updatePrice, etc. to manipulate the stock data

• Use arrays or custom data structures to store and manage stock information

Data encapsulation is the process of hiding implementation details and exposing only necessary information.

• It is a fundamental concept in object-oriented programming.

• It helps in achieving data security and prevents unauthorized access.

• It allows for easy modification of implementation details without affecting the rest of the code.

• Example: A class in Java that has private variables and public methods to access them.

• Example: A struct in C++ that has private members and public m...read more

Reverse a linked list using recursion

• Create a recursive function to reverse the linked list

• Pass the current node and its next node as parameters in the function

• Update the next pointer of the current node to point to the previous node

Comp1 and Comp3 are not defined in the context of software engineering.

• Comp1 and Comp3 are not standard terms in software engineering.

• Without context, it is impossible to determine any difference between them.

• It is important to clarify the meaning of terms before discussing them.

HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.

• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine its index in the array.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap allows null keys and values, but only one null key.

• HashMap is not synchronized, so it is not thread-safe. Use Conc...read more

Our tech stack includes Java, Spring Boot, Angular, and MySQL.

• Java

• Spring Boot

• Angular

• MySQL