PayPal Software Development Engineer Intern Interview Questions and Answers

Simple aptitude questions and it was easy

Consists of 2 coding questions and one is easy and other is medium

Q1. Regarding project and the javascript used in it and react
Add your answer

Logical reasoning, grammar, and coding: two basic level questions.

Q1. Question on core Java
Add your answer
Q2. Question on SQL and PLSQL
Add your answer
Q3. Resume based question and on project
Add your answer

Q1. Resume and project based question
Add your answer
Q2. What do you like about your current company, and why do you want to join our organization?
Ans. 
I appreciate the collaborative team environment and innovative projects at my current company, and I am excited about the opportunities for growth and learning at your organization.
• Collaborative team environment fosters creativity and productivity

• Innovative projects challenge me to learn and grow

• Excited about the opportunities for growth and learning at your organization
Answered by AI
Add your answer

Q1. Merge two sorted linked lists
Ans. 
Merge two sorted linked lists into a single sorted linked list
• Create a new linked list to store the merged result

• Iterate through both input linked lists and compare nodes to determine the order in which they should be added to the result list

• Handle cases where one list is longer than the other
Answered by AI
Add your answer
Q2. Check if paranthesis are balanced or not
Ans. 
To check if parentheses are balanced, use a stack data structure to keep track of opening and closing parentheses.
• Use a stack to push opening parentheses and pop when encountering a closing parenthesis

• If stack is empty when encountering a closing parenthesis, return false

• After iterating through all parentheses, if stack is empty, return true
Answered by AI
Add your answer

Q1. Right view of a Binary Search tree
Ans. 
The right view of a Binary Search Tree shows the nodes that are visible when viewing the tree from the right side.
• The right view of a Binary Search Tree includes the rightmost node at each level.

• Nodes at each level that are not visible from the right side are not included in the right view.

• Example: For the Binary Search Tree with values 1, 2, 3, 4, 5, the right view would be 1, 3, 5.
Answered by AI
Add your answer
Q2. Few javascript questions on how to parse a json object without using inbuilt libraries.
Add your answer

Q1. Explain the react lifecycle functions and how they work
Ans. 
React lifecycle functions are methods that are automatically called at specific points in a component's life cycle.
• Mounting: constructor, render, componentDidMount

• Updating: render, componentDidUpdate

• Unmounting: componentWillUnmount
Answered by AI
Add your answer
Q2. Css box model, difference between padding and margin
Ans. 
Padding is the space inside the border of an element, while margin is the space outside the border.
• Padding is used to create space between the content and the border of an element.

• Margin is used to create space between the border of an element and other elements.

• Padding affects the size of the content area, while margin affects the positioning of the element.

• Example: padding: 10px will create 10 pixels of space inside ...read more
Answered by AI
Add your answer

Q1. What are your salary expectations in CTC and variables?
Add your answer
Q2. Will you relocate to the location required?
Add your answer

Q1. System design basics
Add your answer
Q2. Java 8 stream api code
Add your answer
Q3. Current project
Add your answer

Q1. Only arrogance related stuff
Add your answer
Q2. Only arrogance related stuff happened
Add your answer

Java coding questions, basic Java questions.

Q1. Java basics questions.
Add your answer
Q2. Live coding.
Add your answer

Q1. Discussion on previous experience and projects.
Add your answer
Q2. System design question
Add your answer

Q1. Questions on SQL, Java advanced, personal projects, Java frameworks, UI based questions, Agile methodologies.
Add your answer
Q2. Interview discussion with the whole team.
Add your answer

Q1. Benefits discussion.
Add your answer
Q2. Salary discussion.
Add your answer

Simple aptitude questions and multiple choice coding questions were asked.

Q1. Explanation about project
Ans. 
I have worked on a project to develop a mobile application for tracking fitness activities and providing personalized workout plans.
• Developed user-friendly interface for inputting and tracking fitness data

• Implemented algorithms to generate personalized workout plans based on user's goals and progress

• Integrated with wearable devices to automatically sync activity data

• Conducted thorough testing to ensure accuracy and rel...read more
Answered by AI
Add your answer
Q2. SQL queries which were easy
Add your answer
Q3. Linked list and arrays
Add your answer