Botree Software International Java Developer Interview Questions and Answers

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Q1. Tell me about yourself What is your goal
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Q2. Tell me about utself
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Q3. What is ur passiom
Ans. 
My passion is creating innovative solutions through coding and problem-solving.
• I love the challenge of solving complex problems using Java programming.

• I enjoy continuously learning and improving my skills in Java development.

• I find fulfillment in seeing my code come to life and make a positive impact on users.

• I am passionate about staying up-to-date with the latest technologies and trends in the Java development commun
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Q4. Whats your Carrier growth
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Steady growth with continuous learning and skill development.
• Started as a junior Java developer and gradually moved up to a senior developer role.

• Participated in various training programs and certifications to enhance skills.

• Successfully led a team on a major project, showcasing leadership abilities.

• Regularly attend tech conferences and workshops to stay updated with latest trends.
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Q5. Whats your hobby
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Its Basically Simple verbal,reasoning repeated Qustions

They Deeply Checking Logigcs and Qustions are From Arrays,Strings,oops
And Puzzles.

Q1. They Ask Again Logic For Some Programms And Puzzles
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Q2. Number Plate Using Array MultiDimension Array
Ans. 
Creating a number plate using a multidimensional array of strings.
• Create a 2D array of strings to represent the number plate

• Use loops to populate the array with the required characters

• Print the array to display the number plate
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Q1. What all technologies have you worked with? Total and Relative experience
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Q2. What did you put the pen down from previous company? Current and Expected CTC
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Q1. What is serialisation?
Ans. 
Serialisation is the process of converting an object into a stream of bytes to store or transmit it.
• Serialisation is used to save the state of an object and recreate it when needed.

• It allows objects to be converted into a format that can be easily stored or transmitted.

• Java provides built-in support for serialisation through the Serializable interface.
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Q2. What is csrf? What is session?
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CSRF is a type of attack where a malicious website tricks a user into performing actions on another website. Session is a way to store user data on the server side.
• CSRF (Cross-Site Request Forgery) is a type of attack where a malicious website tricks a user into performing actions on another website without their knowledge or consent.

• CSRF attacks exploit the trust that a site has in a user's browser by sending unauthor...read more
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Q1. What project you worked on? What were your roles and responsibilities?
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Q2. What is difference between restcontroller and controller?
Ans. 
RestController is a specialized version of Controller in Spring framework used for RESTful web services.
• RestController is used for creating RESTful web services, while Controller is used for handling traditional web requests.

• RestController is annotated with @RestController, while Controller is annotated with @Controller.

• RestController returns data directly in the response body, while Controller returns a view.

• RestContr...read more
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Java internals, coding questions 2sum

Q1. Hld of your previous project
Ans. 
Developed a web-based project management tool for tracking tasks and deadlines.
• Used React.js for front-end development

• Implemented RESTful APIs for backend using Node.js and Express

• Utilized MongoDB for database storage

• Incorporated authentication and authorization features for user security
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Q2. Question related to self build projects
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Q1. Salary negotiation
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Q2. Location constrain if any
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Open to relocation for the right opportunity
• Willing to relocate for the right job opportunity

• Flexible with location for the right role

• Open to considering different locations for the right position
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Please inquire about the fundamentals of computer science, including object-oriented programming, data structures and algorithms, database management systems, and computer networks.

Medium to hard questions based on arrays, dp

Q1. Quick sort algorithm
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divides array into smaller sub-arrays based on a pivot element

• Recursively sorts sub-arrays

• Combines sorted sub-arrays to get final sorted array

• Time complexity: O(n log n) on average, O(n^2) worst case

• Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
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Q2. Modified rotate a matrix
Ans. 
Rotate a matrix by 90 degrees in place
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q1. Java script, React JS
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Q2. Data structures and algorithms
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