Capgemini Qa Automation Testing Engineer Interview Questions and Answers

Git stash is used to temporarily store changes that are not ready to be committed.

• Git stash is used to save changes that are not ready to be committed, allowing you to switch branches or work on something else.

• It is useful when you want to temporarily store changes without committing them.

• You can later apply the stashed changes back to your working directory.

• Example: git stash save 'work in progress'

• Example: git stash

Conflicts in git can be handled by resolving them through merging, rebasing, or using tools like git mergetool.

• Communicate with team members to understand changes causing conflicts

• Resolve conflicts by manually editing files or using git mergetool

• Use git rebase to reapply changes on top of another branch

• Merge conflicting branches after resolving conflicts

HashMap is non-synchronized and allows null values and keys, while HashTable is synchronized and does not allow null values or keys.

• HashMap is non-synchronized and not thread-safe, while HashTable is synchronized and thread-safe.

• HashMap allows null values and keys, while HashTable does not allow null values or keys.

• HashMap is generally preferred over HashTable for non-thread-safe operations due to better performance.

final, finally, and finalize are keywords in Java used for different purposes.

• final is a keyword used to declare constants, prevent method overriding, and prevent inheritance.

• finally is a block of code that is always executed, whether an exception is thrown or not.

• finalize is a method used for cleanup operations before an object is garbage collected.

Idempotent in API means that making the same request multiple times has the same effect as making it once.

• Idempotent operations produce the same result regardless of how many times they are called.

• GET and PUT requests are typically idempotent, while POST requests are not.

• For example, sending a PUT request to update a resource should have the same result whether it is sent once or multiple times.

The pillars of JAVA are Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

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

• Polymorphism: Ability of a method to do different things based on the ob...read more

Singleton design pattern restricts the instantiation of a class to a single instance and provides a global point of access to it.

• Ensures only one instance of a class exists

• Provides a global point of access to the instance

• Uses a private constructor to prevent external instantiation

• Commonly used in logging, database connections, and configuration settings

A framework is a set of guidelines, rules, and best practices used to develop software applications.

• A framework provides a structure for organizing code and helps to ensure consistency across the application.

• It can include libraries, tools, and templates to simplify development.

• Examples of popular frameworks include React, Angular, and Django.

• Frameworks can be used for both manual and automated testing.

• They can also be...read more