Mphasis Interview Questions, Process, and Tips

Q1. Difference between PUT and POST
Ans. 
PUT is used to update or replace an existing resource, while POST is used to create a new resource.
• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

• POST is not idempotent, meaning multiple identical requests may have different effects.

• PUT is used when the client knows the URI of the resource it wants to update.

• POST is used when the client does not know the URI of the
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Q2. What are the idempotent methods in REST API call
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Idempotent methods in REST API calls are operations that can be repeated multiple times without changing the result beyond the initial application.
• GET method is idempotent as it retrieves data and does not change the state of the server

• PUT and DELETE methods are also idempotent as they perform the same operation regardless of how many times they are called

• POST method is not idempotent as it creates a new resource each
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Q1. Seperate words and number program in Java.
Ans. 
A program in Java to separate words and numbers.
• Use regular expressions to separate words and numbers.

• Iterate through the input string and check if each character is a word or a number.

• Store the words and numbers in separate arrays.
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Q1. Java 8 Features
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Q2. Composition and aggregation
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Easy MCQ Questions just prepare basics of CS

Q1. Explain OOPS concept in detail
Ans. 
OOPS is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPS stands for Object-Oriented Programming System

• It focuses on creating objects that interact with each other to solve a problem

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation: Bundling data and methods that operate on the data int...read more
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Q2. What is constructor
Ans. 
A constructor is a special type of method that is automatically called when an object is created in a class.
• Constructors have the same name as the class they are in.

• They can be used to initialize object properties.

• Constructors do not have a return type.

• Example: public class Car { public Car() { // constructor code here } }
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Q3. When we use final keyword
Ans. 
The final keyword is used in Java to declare constants, prevent method overriding, and prevent class inheritance.
• Used to declare constants - value cannot be changed

• Prevents method overriding in subclasses

• Prevents class inheritance - class cannot be extended
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Q1. Strength and Weakness
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Q2. About myself, my hobbies, fav game
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Q1. Basic and advanced concepts of c++
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Q1. Basic and advanced concepts of c++
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Q1. Interview questions about datastage
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