WinWire Junior Software Engineer Interview Questions and Answers

Q1. Personal details
Add your answer

Pattern, star , hollow pattern

Basic aptitude asked for all company

One question to find substring of string which has double chars

Q1. Basic oops and sql
Add your answer
Q2. Write pandas for dataframe
Ans. 
Pandas is a Python library used for data manipulation and analysis, including creating and working with dataframes.
• Import the pandas library: import pandas as pd

• Create a dataframe: df = pd.DataFrame(data)

• Accessing data in a dataframe: df['column_name']

• Filtering data in a dataframe: df[df['column_name'] > value]

• Adding a new column: df['new_column'] = values
Answered by AI
Add your answer

Q1. Give angle betweeen hour hand and min hand art 12:20
Ans. 
The angle between the hour hand and minute hand at 12:20 is 10 degrees.
• Calculate the angle made by the hour hand from 12 o'clock position: (20/60)*30 = 10 degrees

• Calculate the angle made by the minute hand from 12 o'clock position: (20/60)*360 = 120 degrees

• Find the difference between the two angles: 120 - 10 = 110 degrees
Answered by AI
Add your answer
Q2. Basic operating system questions
Add your answer

Q1. Explain oops concept
Ans. 
OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating reusable code through classes and objects

• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects to be treated as instances of...read more
Answered by AI
Add your answer

Q1. What is session in php
Ans. 
Session in PHP is a way to store information (variables) to be used across multiple pages during a user's visit to a website.
• Sessions are used to store user-specific information, such as username, shopping cart items, etc.

• Sessions are started with session_start() function and can be accessed using the $_SESSION superglobal array.

• Sessions are stored on the server and identified by a unique session ID, which is usually s
Answered by AI
Add your answer

Questions based on coding

Based on coding questions

Q1. Introduction of yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding. I have experience with Java, Python, and web development.
• Recent graduate in Computer Science

• Proficient in Java, Python, and web development

• Passionate about coding
Answered by AI
Add your answer
Q2. About dbms , sql queries..
Add your answer

Q1. Object-oriented questions
Add your answer

Q1. Project based questions
Add your answer

Test contain mix question from computer fundamentals and aptitude

Q1. Find the leaf node of the binary tree
Ans. 
A leaf node in a binary tree is a node that does not have any children.
• Traverse the binary tree and check if a node has no left or right child, then it is a leaf node.

• Example: In the binary tree 1 -> 2, 3 -> 4, 5, 6 -> 7, 8, the leaf nodes are 4, 5, 7, 8.
Answered by AI
Add your answer
Q2. Check if the given linked list contain loop
Ans. 
Check if a linked list contains a loop by using Floyd's cycle detection algorithm.
• Use two pointers, one moving at twice the speed of the other

• If there is a loop, the two pointers will eventually meet

• Example: 1->2->3->4->5->2 (loop at 2)
Answered by AI
Add your answer
Q3. Find the fist non repeating element in string
Ans. 
Find the first non-repeating element in a string
• Create a frequency map of characters in the string

• Iterate through the string and check the frequency of each character

• Return the first character with frequency 1
Answered by AI
Add your answer

Basic coding round. Asked basic JS logics.

Q1. After clearing first round I directly attended managerial round
Add your answer