Tata Technologies Java Developer Interview Questions and Answers

Q1. How to declare object in js
Ans. 
To declare an object in JavaScript, you can use the 'let' or 'const' keyword followed by the object name and curly braces {}.
• Use 'let' or 'const' keyword to declare the object

• Followed by the object name and curly braces {}

• Example: let person = {};
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Q1. Explain Spring boot flow
Ans. 
Spring Boot is a framework that simplifies the development of Java applications by providing pre-configured templates and dependencies.
• Spring Boot uses an embedded server to run the application

• It provides auto-configuration of dependencies

• It uses annotations to configure the application

• It supports various data sources and web frameworks

• It simplifies the deployment process
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Q2. What is difference between error and exception?
Ans. 
Errors are unrecoverable, while exceptions can be handled.
• Errors are caused by the environment or JVM, while exceptions are caused by the application code.

• Errors cannot be handled, while exceptions can be caught and handled using try-catch blocks.

• Examples of errors include OutOfMemoryError and StackOverflowError, while examples of exceptions include NullPointerException and ArrayIndexOutOfBoundsException.
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DSA questions mainly focusing on dynamic programming and Graphs

Q1. Tell me about yourself?
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Graduated with a degree in Computer Science

• Worked on multiple projects using Java and Python

• Familiar with web development technologies like HTML, CSS, and JavaScript

• Strong problem-solving skills and ability to work in a team
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Q2. What are your strengths and weaknesses?
Ans. 
My strengths include problem-solving skills and attention to detail. My weaknesses include a tendency to overthink and difficulty delegating tasks.
• Strengths: problem-solving skills, attention to detail

• Weaknesses: tendency to overthink, difficulty delegating tasks
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Q1. Javascript basic questions
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Q2. Javascript basic questions
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Q1. WHAT YOU KNOW ABOUT CODEING
Ans. 
Coding is the process of creating instructions for computers to execute tasks.
• Coding involves writing and testing instructions in programming languages.

• It is used to create software, websites, apps, and more.

• Examples of coding languages include Java, Python, and C++.
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Q1. HOW MUCH TIME TAKE FOR ONW PROJECT
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VEAY SIMPLE QUESTION ASKING

IT WAS BASIC AND EASY TO SOLVE

Q1. OOPS CONCEPT OF JAVA
Ans. 
OOPS concepts in Java refer to the principles of Object-Oriented Programming such as inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism...read more
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Q2. JAVA SPRING BOOT
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