Techahead Software UI Developer Interview Questions and Answers

Medium level coding questions on hackerrank ,1:30hr, topic- Array , DP , Matrix , Binary Search

Q1. Was Asked to Implement Hashmap and Question on OOPS and Dbms , SQL and Indexing
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Q1. Brief Introduction
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Q2. Rotten Oranges and basics of bfs and DFS
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Q1. Different deoendency injection techniques
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Dependency injection is a design pattern used to remove hard-coded dependencies and make components more modular and testable.
• Constructor injection: Dependencies are provided through a class's constructor.

• Setter injection: Dependencies are set through setter methods.

• Interface injection: Dependencies are injected through an interface.

• Spring framework in Java uses dependency injection to manage components.

• Angular framewo...read more
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Q1. Client round about architecture
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2 Programming questions

Q1. String Pool OOPS Internal Working on Hashmap
Ans. 
String pool is a memory area in Java where strings are stored to optimize memory usage. OOPS stands for Object-Oriented Programming System. HashMap is a data structure in Java that stores key-value pairs.
• String pool in Java is a special memory area where strings are stored to optimize memory usage.

• OOPS stands for Object-Oriented Programming System, a programming paradigm based on the concept of objects.

• HashMap is a dat...read more
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1. how to create a normal form layout like facebook or instagram login page
2. question based on kmp string matching algorithm to check string1 includes string2 or not.
3. validate a form using regex operation .

Q1. Technical questions based upon your skill set & CV like questions upon your projects.
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Q2. 1. basic questions on html css ,js 2. in react redux , props , state , functional , class components .
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Round duration - 40 minutes
Round difficulty - Medium

It was early in the morning around 8:00AM-8:40AM. Platform used was hackerrank and the questions asked were of moderate level.

Q1. 
Split Array with Equal Sums Problem Statement
Given an array 'ARR' of size 'N', determine if there exists a triplet (i, j, k) satisfying the conditions: 0 < i , i + 1 < j , j + 1 < k and k < N...read more
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Round duration - 15 minutes
Round difficulty - Easy

It was in the evening around 4;00PM-4:20PM. This round was very interesting as it focuses more about your personality rather than your knowledge which has been already checked in previous rounds.

Q1. Related to front end technologies like HTML, CSS, JS
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Q1. Basic questions on HTML, CSS, JS Focus on array questions and read methods of array before
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Q1. Managerial round questions based on scenario to check how you think/react on the particular situation
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