HashStudioz Technologies Interview Questions, Process, and Tips

The aptitude test comprised 30 multiple-choice questions to be completed within 30 minutes. The questions included a variety of topics, such as basic programming, data structures and algorithms (DSA), and quantitative aptitude.

It consisted of 2 programming questions:
1. Find max in an array without using loops or recursion.
2. Check if a number is palindrome without using array or string.

Q1. Basic questions regarding UIKit and swift programming.
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Q2. Just revise basics.
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Q1. 1) Number of experience do you have as Java Developer 2) Current salary and organisation details 3) Expected salary 4) Any problem to relocate to Job posting place
Ans. 
The interview questions are related to the candidate's experience, salary, and willingness to relocate.
• Answer the question about the number of years of experience as a Java Developer.

• Provide details about the current salary and organization.

• State the expected salary for the new job.

• Indicate if there is any problem with relocating to the job posting place.
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Q1. 1) Explain the internal workings of HashMap 2) Difference between HashMap and ConcurrentHashMap 3) Difference between failfast and failsafe iterator
Ans. 
Answers to questions related to Java Developer interview
• HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values

• ConcurrentHashMap is a thread-safe version of HashMap that allows multiple threads to access and modify the map concurrently

• Fail-fast iterator throws ConcurrentModificationException if the collection is modified while iterating

• Fail-safe iterator creates a copy of the collect...read more
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Q2. 4)How many objects will be created if below lines executed in Java String s = new String("abc"); 5) Difference between Stack and Heap memory in Java 6) Explain @autowired
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Java interview questions on object creation, memory allocation, and @autowired annotation.
• One object will be created for the String 'abc' and another object will be created for the reference variable 's'.

• Stack memory is used for storing method calls and local variables, while heap memory is used for storing objects.

• @Autowired is used in Spring Framework for automatic dependency injection.

• It eliminates the need for manu...read more
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Q1. What is Angular
Ans. 
Angular is a popular open-source web application framework developed by Google for building dynamic single-page applications.
• Angular is based on TypeScript, a superset of JavaScript.

• It uses a component-based architecture for building UI elements.

• Angular provides features like data binding, dependency injection, and routing.

• Angular CLI is a command-line tool for creating, building, and testing Angular applications.
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Q2. What are ngZone and some Bais interview question about Angular its lifecycle working
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Q1. One question was on printing triangle patterns.
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