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Mintoak Innovations Java Developer Interview Questions and Answers

Updated 10 Dec 2024

6 Interview questions

A Java Developer was asked 6mo ago
Q. How do you sort a class object containing roll number and name, based on roll number?
Ans. 

You can sort a class object by implementing the Comparable interface and overriding the compareTo method.

  • Implement the Comparable interface in the class and override the compareTo method to compare objects based on roll number.

  • Use Collections.sort() method to sort the list of objects based on roll number.

  • Example: class Student implements Comparable<Student> { public int compareTo(Student s) { return this.rol...

A Java Developer was asked 6mo ago
Q. What is a constructor in Java?
Ans. 

A constructor is a special method in Java used to initialize objects when they are created.

  • Constructors have the same name as the class they belong to.

  • They do not have a return type, not even void.

  • Constructors can be overloaded, allowing multiple ways to initialize an object.

  • Example: public class Dog { Dog() { } Dog(String name) { this.name = name; } }

  • If no constructor is defined, Java provides a default construct...

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A Java Developer was asked 8mo ago
Q. How do Spring Boot Annotations work together?
Ans. 

Spring Boot annotations simplify configuration and enhance functionality in Java applications, promoting ease of development.

  • @SpringBootApplication: Combines @Configuration, @EnableAutoConfiguration, and @ComponentScan.

  • @RestController: Combines @Controller and @ResponseBody for RESTful web services.

  • @Autowired: Automatically injects dependencies, reducing boilerplate code.

  • @RequestMapping: Maps HTTP requests to spec...

A Java Developer was asked 8mo ago
Q. What are the differences between PostgreSQL and Oracle SQL?
Ans. 

PostgreSQL and Oracle SQL differ in terms of licensing, features, performance, and cost.

  • PostgreSQL is open-source while Oracle SQL is proprietary.

  • PostgreSQL is known for its extensibility and support for advanced features like JSON data types, while Oracle SQL is known for its robustness and scalability.

  • PostgreSQL is generally considered more cost-effective for small to medium-sized projects, while Oracle SQL is p...

A Java Developer was asked 8mo ago
Q. Functional Interfaces in Java
Ans. 

Functional interfaces in Java are interfaces with a single abstract method, used for lambda expressions and method references.

  • Functional interfaces have only one abstract method, but can have multiple default or static methods.

  • Examples include java.lang.Runnable, java.util.Comparator, and java.util.function.Predicate.

  • Functional interfaces can be used with lambda expressions and method references for concise code.

A Java Developer was asked 8mo ago
Q. Streams in Java
Ans. 

Streams in Java are sequences of elements that support functional-style operations.

  • Streams are used to process collections of objects in a functional way.

  • They allow for concise and readable code by enabling operations like filter, map, reduce, etc.

  • Example: List<String> names = Arrays.asList("Alice", "Bob", "Charlie"); Stream<String> stream = names.stream();

Mintoak Innovations Java Developer Interview Experiences

2 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Technical 

(4 Questions)

  • Q1. What is hashmap in java
  • Q2. What is constructor
  • Q3. How to sort a class object having roll no names add to roll no
  • Q4. What is comparator

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare Java

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Recruitment Consulltant and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. Functional Interfaces in Java
  • Ans. 

    Functional interfaces in Java are interfaces with a single abstract method, used for lambda expressions and method references.

    • Functional interfaces have only one abstract method, but can have multiple default or static methods.

    • Examples include java.lang.Runnable, java.util.Comparator, and java.util.function.Predicate.

    • Functional interfaces can be used with lambda expressions and method references for concise code.

  • Answered by AI
  • Q2. Spring Boot Annotations, how they work with each other
  • Q3. Streams in Java
  • Ans. 

    Streams in Java are sequences of elements that support functional-style operations.

    • Streams are used to process collections of objects in a functional way.

    • They allow for concise and readable code by enabling operations like filter, map, reduce, etc.

    • Example: List<String> names = Arrays.asList("Alice", "Bob", "Charlie"); Stream<String> stream = names.stream();

  • Answered by AI
  • Q4. Differences in diff SQL DBs - postgresql vs oracle sql

Skills evaluated in this interview

Top trending discussions

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Interview Tips & Stories
5d (edited)
a team lead
Why are women still asked such personal questions in interview?
I recently went for an interview… and honestly, m still trying to process what just happened. Instead of being asked about my skills, experience, or how I could add value to the company… the questions took a totally unexpected turn. The interviewer started asking things like When are you getting married? Are you engaged? And m sure, if I had said I was married, the next question would’ve been How long have you been married? What does my personal life have to do with the job m applying for? This is where I felt the gender discrimination hit hard. These types of questions are so casually thrown at women during interviews but are they ever asked to men? No one asks male candidates if they’re planning a wedding or how old their kids are. So why is it okay to ask women? Can we please stop normalising this kind of behaviour in interviews? Our careers shouldn’t be judged by our relationship status. Period.
Got a question about Mintoak Innovations ?
Ask anonymously on communities.

Interview questions from similar companies

I applied via Walk-in and was interviewed before Jul 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Egerly they asked questions about your inner confidence of tha job seekers

Interview Preparation Tips

Interview preparation tips for other job seekers - Ntg is impossible first you consatret your looking i meen your dress sens... first impression is tha best impression so u look complete formally & kindly answer tha questions very confidently ..be honest delivered good communication skills

I applied via Recruitment Consultant and was interviewed before May 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. DS and Algo questions based on DP and backtracking
  • Q2. Clone linked list with random pointers.
  • Ans. 

    Clone a linked list with random pointers.

    • Create a new node for each node in the original list.

    • Store the mapping between the original and cloned nodes in a hash table.

    • Traverse the original list again and set the random pointers in the cloned list using the hash table.

    • Return the head of the cloned list.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Mostly DS and Algo rounds followed by design rounds. Sometimes there can be language specific questions.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Referral and was interviewed in May 2023. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Do not use an unprofessional email address such as cool_boy@email.com. It shows a lack of professionalism by the candidate.
View all tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Maukhik question answer
Round 3 - One-on-one 

(1 Question)

  • Q1. Reaten question answer
Round 4 - HR 

(1 Question)

  • Q1. Sallary discourse check by before company ..
Round 5 - One-on-one 

(1 Question)

  • Q1. Check by before company sallary sleep

Interview Preparation Tips

Interview preparation tips for other job seekers - Good communication

I applied via Referral and was interviewed in Jul 2021. There were 3 interview rounds.

Interview Questionnaire 

6 Questions

  • Q1. All process about linr handling.
  • Q2. My answer regarding my line work procedure.
  • Q3. Change over process
  • Q4. Npi model running
  • Q5. Risk production
  • Q6. Solder paste about use
  • Ans. 

    Solder paste is a material used in electronics manufacturing to connect components to printed circuit boards.

    • Solder paste is a mixture of metal alloy particles and flux.

    • It is applied to the pads on a printed circuit board before components are placed on top.

    • When heated, the solder paste melts and creates a bond between the component and the board.

    • Different types of solder paste are used for different applications, such...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confidential at time of face to face interview.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
-

I appeared for an interview in Nov 2022.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Strong appitude knowledge is required.

Round 3 - Technical 

(1 Question)

  • Q1. String , arrays, oops

Interview Preparation Tips

Interview preparation tips for other job seekers - Have strong basic concepts.
Are these interview questions helpful?
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Strecture of sql statement
  • Ans. 

    SQL statements are used to interact with databases by performing operations like querying, updating, and deleting data.

    • SQL statements are made up of keywords like SELECT, INSERT, UPDATE, DELETE, etc.

    • They are structured in a specific order, with clauses like WHERE, ORDER BY, GROUP BY, etc.

    • Tables are referenced using their names, and conditions are specified to filter data.

    • Joins can be used to combine data from multiple ...

  • Answered by AI

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Sagacious IP user image 058 Abhilakshya Rajrah

posted on 9 Dec 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(3 Questions)

  • Q1. 2 sum in array
  • Ans. 

    The Two Sum problem involves finding two numbers in an array that add up to a given target value.

    • Iterate through the array and store the difference between the target and current element in a hashmap

    • Check if the current element exists in the hashmap, if yes return the indices

    • Time complexity can be reduced to O(n) using a hashmap

  • Answered by AI
  • Q2. Reverse a linked list
  • Q3. In given time slots , find conflicting time slots
  • Ans. 

    Identify overlapping time slots from a list of scheduled appointments.

    • Sort the time slots by start time.

    • Iterate through the sorted list and compare each slot with the next one.

    • If the start time of the next slot is less than the end time of the current slot, they conflict.

    • Example: Slots [(1, 3), (2, 4)] conflict because 2 < 3.

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Asked about projects
  • Q2. Longest palindrome

Skills evaluated in this interview

I applied via Naukri.com

Round 1 - Coding Test 

Hacker rank question - easy and medium

Round 2 - Coding Test 

Design solution for problems

Round 3 -  

(1 Question)

  • Q1. Design a software for car ECU
  • Ans. 

    Design a software for car ECU

    • Identify the requirements and functionalities of the ECU

    • Choose a programming language and development environment

    • Implement the software to control the engine, transmission, and other systems

    • Test the software for reliability and performance

    • Ensure the software is secure and can handle errors and exceptions

  • Answered by AI
Round 4 - HR 

(2 Questions)

  • Q1. What are your strengths and weaknesses?
  • Ans. 

    My strengths include strong leadership skills, excellent communication, and problem-solving abilities. My weaknesses include being overly critical of myself and sometimes taking on too much responsibility.

    • Strength: Strong leadership skills

    • Strength: Excellent communication

    • Strength: Problem-solving abilities

    • Weakness: Being overly critical of myself

    • Weakness: Sometimes taking on too much responsibility

  • Answered by AI
  • Q2. Tell me about yourself.
  • Ans. 

    I am an experienced professional with strong leadership skills and a proven track record in managing teams.

    • Experienced professional with strong leadership skills

    • Proven track record in managing teams

    • Excellent communication and problem-solving abilities

    • Ability to motivate and inspire team members

    • Focused on achieving goals and delivering results

  • Answered by AI

Interview Preparation Tips

Topics to prepare for KLA Team Lead interview:
  • hash maps
  • solid
Interview preparation tips for other job seekers - practice on hackerrank
solve some design problems

Skills evaluated in this interview

Mintoak Innovations Interview FAQs

How many rounds are there in Mintoak Innovations Java Developer interview?
Mintoak Innovations interview process usually has 1 rounds. The most common rounds in the Mintoak Innovations interview process are Technical.
How to prepare for Mintoak Innovations Java Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Mintoak Innovations . The most common topics and skills that interviewers at Mintoak Innovations expect are Agile Methodology, Database Management, GIT, HP Data Protector and MySQL.
What are the top questions asked in Mintoak Innovations Java Developer interview?

Some of the top questions asked at the Mintoak Innovations Java Developer interview -

  1. How to sort a class object having roll no names add to roll...read more
  2. Spring Boot Annotations, how they work with each ot...read more
  3. Differences in diff SQL DBs - postgresql vs oracle ...read more

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Overall Interview Experience Rating

3.5/5

based on 2 interview experiences

Difficulty level

Moderate 100%

Duration

Less than 2 weeks 100%
View more

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Mintoak Innovations Java Developer Salary
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₹2.1 L/yr - ₹14 L/yr
33% more than the average Java Developer Salary in India
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