Capgemini Interview Questions, Process, and Tips for Freshers

1.Sort by salary from employee list using stream.
2.Concat two array and remove duplicate.
3.

Q1. What are the Design patterns have you used?
Ans. 
I have used design patterns such as Singleton, Factory, and Observer in my projects.
• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and
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Q2. Difference between throw , throws and throwable ?
Ans. 
throw is a keyword used to throw an exception, throws is used in method signature to declare exceptions thrown, and Throwable is a superclass for all exceptions and errors.
• throw is used to throw an exception in a try-catch block

• throws is used in method signature to declare exceptions that the method can throw

• Throwable is a superclass for all exceptions and errors in Java
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Q3. How do you write custom exception?
Ans. 
Custom exceptions can be written by creating a new class that extends the Exception class.
• Create a new class that extends the Exception class

• Add a constructor to the custom exception class

• Throw the custom exception using 'throw new CustomException(message)'
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Q4. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap uses the hashCode() method of ke...read more
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Q5. Feature of micro services
Ans. 
Microservices are a software development technique that structures an application as a collection of loosely coupled services.
• Each service is self-contained and can be developed, deployed, and scaled independently

• Promotes flexibility, scalability, and resilience in software development

• Allows for different technologies to be used for different services

• Enables teams to work on different services simultaneously

• Facilitates
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Q1. Questions related to sql
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Q2. Project which u have worked on
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Knowledge on basic things which are available

Q1. Tell me about yourself
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Q2. Explain about java
Ans. 
Java is a high-level programming language known for its portability, security, and versatility.
• Java is an object-oriented language, allowing for the creation of reusable code and modular programs.

• It is platform-independent, meaning Java programs can run on any device with a Java Virtual Machine (JVM).

• Java is used for developing a wide range of applications, from web applications to mobile apps.

• Java has a strong communi...read more
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Basic grammer and essay writing and gamification round

Q1. Was asked to give Introduction
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Q2. Few questions on resume
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Q1. Work experience, salary expectation
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Q1. Golden rules of accounting
Ans. 
Golden rules of accounting are basic principles that guide the process of recording financial transactions.
• The three golden rules of accounting are: Debit the receiver, Credit the giver; Debit what comes in, Credit what goes out; Debit expenses and losses, Credit income and gains.

• These rules help maintain the balance in the accounting equation: Assets = Liabilities + Equity.

• For example, when a company receives cash fro...read more
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Q2. Matching concept
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Q3. P to P cycle
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1.30 hrs basic qualitative and quantitive aptitude test

Q1. Java oops concepts
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Q2. Java inheritance with real-world example
Ans. 
Java inheritance allows a subclass to inherit attributes and methods from a superclass.
• Subclass can access superclass methods and variables

• Subclass can override superclass methods

• Subclass can add new methods and variables
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Q1. Leadership qualities
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Q2. Previously faced hard situations and how did I overcome
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