Amazon Development Centre India Java Developer Interview Questions and Answers

Q1. Realted to.multithreading
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Q1. Difference between bean and comparator?
Ans. 
Bean is a Java class with private fields and public getter/setter methods, while Comparator is an interface used to compare objects.
• Bean is a Java class with private fields and public getter/setter methods.

• Comparator is an interface used to compare objects based on a certain criteria.

• Beans are typically used to encapsulate data, while comparators are used for sorting or ordering objects.
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Q2. Dependency injections?
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Q1. Basic java ask quations
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Q2. What is java is use
Ans. 
Java is a versatile programming language used for developing a wide range of applications.
• Java is used for developing web applications, mobile apps, desktop applications, and enterprise software.

• It is commonly used in backend development for server-side programming.

• Java is also used in game development, scientific applications, and big data processing.

• Examples include Android apps, banking software, e-commerce platform
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Q3. Java app li cation as
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Q4. Your role for that job
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Coding of java how to solve eassy quations

Q1. Salary how and which side or osbsb idjs
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All logical program, like arry string logical program.

Q1. Tell me about your self, tell me about your native place Why should higher you
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Q2. Why shift non it to it sector
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Java related questions

Q1. What are u doing for our company? Why we choosing for u?
Ans. Hard and samrt working for our company and u chooses me in my knowledge based my efforts and quality.
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Q2. What's ur dream for this job
Ans. Improve my knowledge and techniques and learn more new concept
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Q3. Opps concept in Java
Ans. 
OOPs concept in Java refers to the Object-Oriented Programming paradigm that emphasizes on objects and classes.
• Encapsulation - binding data and methods together

• Inheritance - acquiring properties and behavior of parent class

• Polymorphism - ability of objects to take many forms

• Abstraction - hiding implementation details and showing only necessary information
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Q1. What is ur exception for this job
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Q2. Why u choose this java language
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Q1. Design snake ladder
Ans. 
Design a snake ladder game with a board, players, dice, and rules for moving.
• Create a game board with squares representing positions on the board.

• Include snakes and ladders on the board that can move players up or down.

• Players take turns rolling a dice to determine how many spaces to move.

• Implement rules for landing on a snake or ladder square to move accordingly.

• The first player to reach the final square wins the game
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Q1. Remove duplicates from array Implement Stack using Queue

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Remove duplicates from array and implement Stack using Queue

• To remove duplicates, use a HashSet or sort the array and iterate through it

• To implement Stack using Queue, use two Queues and switch elements between them

• Example: String[] arr = {"apple", "banana", "orange", "apple"};

• Example: Queue queue1 = new LinkedList<>();

• Example: Stack stack = new Stack<>();

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