MAQ Software Software Engineer Intern Trainee Interview Questions and Answers

Leet code medium level question

Q1. About Java Streams
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Q2. Restful API coding completion based on given file
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Q1. To check your attitude
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Q2. Given detailed about company and what project you are going to work on?
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Q1. Hashmap working
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Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• Hashmap uses a hashing function to map keys to indices in an array.

• It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.

• Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 123); int value = map.get("key");
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Q2. Multithreading cases
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Q3. Scenario specific on how to handle multiple events on a single variable to have accurate result
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Q4. Database indexing
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Q5. Architecture level
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Round 1: DSA round asked Two DSA question in which one is Leetcode medium and another is leetcode Hard. I answer both of them but not selected in the further HR round.

Round 2: HR round

Q1. What is your name
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Q2. What is your strength
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30 questions - aptitude+DSA +Java+Sql MCQ Questions

3 codes are given
1)if number is divisible by 15 then print "Foo" ,if number is divisible by 17 then print "bar" ,
if number is divisible by 15 and 17 then print "Foo Bar"
2) find third largest element of array
3)find factors of number

Q1. Explain Access modifiers public and default difference how to connect java to database 20 % of 25 superclass of all class sql query for delete last 10 rows from employee table
Ans. 
Access modifiers control the visibility and accessibility of classes, methods, and variables in Java.
• public access modifier allows a class, method, or variable to be accessed from any other class.

• default access modifier (no keyword) allows a class, method, or variable to be accessed only within the same package.

• To connect Java to a database, you can use JDBC (Java Database Connectivity) API.

• The superclass of all classe...read more
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Q1. Why you want join our company
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Q2. Why should hire you?
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Q1. What is four pillars of oops concepts
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Encapsulation, Inheritance, Polymorphism, Abstraction
• Encapsulation: Bundling data and methods that operate on the data into a single unit

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

• Polymorphism: Ability to present the same interface for different data types

• Abstraction: Hiding the complex implementation details and showing only the necessary features
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Q2. Different between array and collection
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Arrays are fixed in size and store elements of the same data type, while collections are dynamic in size and can store elements of different data types.
• Arrays have a fixed size, while collections can dynamically resize.

• Arrays store elements of the same data type, while collections can store elements of different data types.

• Arrays use indexes to access elements, while collections use iterators or other methods.

• Examples:...read more
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DSA coding 2-3 question

Java, DSA coding, java 8 coding, multithreading

Java8, spring-boot, DSA coding

Q1. DSA coding, java 8 coding, spring boot, mysql
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Q1. Coding Round, Design Pattern
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Q1. Coding, Design Pattern
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Q1. Coding, SOLID, System Design
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