Data Economy Java Developer Interview Questions and Answers

Some resoning questions and time and work , percentage, numbering, relationship que

Q1. Ask basics questions of SQL and java
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Q2. Oop concepts Collection in java
Ans. 
OOP concepts in Java involve encapsulation, inheritance, polymorphism, and abstraction. Collections in Java are used to store and manipulate groups of objects.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allows a class to inherit properties and behavior from another class.

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

• Abstraction...read more
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Mcq of java launguage

Q1. Tell me about yourself Where do you see yourself in 5 years
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Q2. Strength and weekness
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Q3. Short term goal and long term goal
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Q1. Oops concept, comparator vs comparable , design principles. TDD , Circuit breaker design , integration testing , diff between hibernate and jpa , springboot annotations , restApi basics .
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Q1. Basic hr questions
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Q1. Java 8 new features
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Default methods allow interfaces to have method imple...read more
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Q2. Spring basics and annotations
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Q1. Salary discussion
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Q2. Lwd discussion and joining
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