Josh Software Interview Questions, Process, and Tips

Just practise time and work and appitude question

Just practise time and work and missing number question

Leetcode,and practise striver sheet as wel

Q1. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to represent multiple data types.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. What is runtime polymorphism
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Runtime polymorphism is the ability of a function to behave differently based on the object it is called with.
• Runtime polymorphism is achieved through method overriding in object-oriented programming.

• It allows a subclass to provide a specific implementation of a method that is already provided by its superclass.

• The actual method that gets called is determined at runtime based on the type of object.

• Example: Animal class...read more
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2 hours test of 3 questions and we have to solve it in time and get maximum points

Q1. Basic fundamentals of computer engineering
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Q2. Project-based questions for students
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Q3. Difference between c and cpp
Ans. 
C is a procedural programming language while C++ is a multi-paradigm programming language with object-oriented features.
• C is a procedural programming language, while C++ supports both procedural and object-oriented programming.

• C does not support classes and objects, while C++ does.

• C does not have features like inheritance, polymorphism, and encapsulation, which are supported in C++.

• C++ has additional features like temp...read more
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Q1. What is inheritance, bindings, static, final, exception handling, collections.
Ans. 
Inheritance, bindings, static, final, exception handling, collections are key concepts in software engineering.
• Inheritance allows a class to inherit properties and behaviors from another class.

• Bindings refer to the process of connecting data to a user interface element.

• Static keyword is used to create class-level variables and methods.

• Final keyword is used to make a variable, method, or class immutable.

• Exception handli...read more
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Q2. Difference between linked list and ArrayList.
Ans. 
Linked list is a data structure where elements are stored in nodes with pointers to the next node. ArrayList is a resizable array implementation.
• Linked list allows for efficient insertion and deletion of elements, while ArrayList is faster for random access.

• Linked list uses more memory due to storing pointers, while ArrayList uses contiguous memory for elements.

• Example: LinkedList linkedList = new LinkedList<>(); Array
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Q3. Code for remove all white space from a string.
Ans. 
Code to remove all white space from a string.
• Use built-in string functions like replace() or regex to remove white spaces.

• Example: str.replace(/\s/g, '') will remove all white spaces from the string.
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Q1. She asked me about my internship and projects
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Q2. Do you know about Git
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3 questions on strings

Q1. What are promises?
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained together using .then() to handle success and failure.

• Example: new Promise((resolve, reject) => { ... }).then(result => { ... }).catch(error => { ... });
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Q2. What are async functions?
Ans. 
Async functions in JavaScript allow for asynchronous programming using the async/await syntax.
• Async functions are defined using the 'async' keyword before the function declaration.

• They allow for the use of the 'await' keyword within the function to pause execution until a promise is settled.

• Async functions always return a promise.

• Example: async function fetchData() { await fetch('https://api.example.com/data'); }
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Q3. What are node modules>?
Ans. 
Node modules are reusable code packages that can be easily imported and used in Node.js applications.
• Node modules are JavaScript libraries that can be easily installed using npm (Node Package Manager).

• They help in organizing code, improving code reusability, and managing dependencies.

• Examples of popular node modules include Express.js for web applications, Lodash for utility functions, and Mongoose for MongoDB interact
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Online aptitude test questions from ds, oops , dbms , sql , os , arithmetic and reasoning, pseudocodes

Question from string , linked list, array , etc. . data structure

Q1. Testing basis concept
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Q2. Domain specifics
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Q1. Testing methodologies
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Q2. Test design technique
Ans. 
Test design techniques are methods used to create test cases and scenarios for software testing.
• Black box testing: focuses on the functionality of the software without looking at the internal code.

• White box testing: examines the internal code structure and logic of the software.

• Equivalence partitioning: divides input data into partitions of equivalent data.

• Boundary value analysis: tests the boundaries of input ranges.

• D...read more
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