Deloitte Softwaretest Engineer Interview Questions and Answers

Contained only mcq questions related to maths and reasoning

Q1. How to detect two loops in a linkedlist
Ans. 
Use Floyd's Cycle Detection Algorithm to detect two loops in a linked list.
• Initialize two pointers, slow and fast, both starting at the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps in each iteration.

• If they meet at some point, there is a loop. Reset one pointer to head and move both by one step until they meet again to find the start of the loop.
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Q2. Mainly all the basics questions on DSA and C++ Language and all the ds like stacks, linkedlist, tree, array, queue,map difference between queue and stack
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Q1. Questions on project
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Q2. Code simple que like reverse the string in every possible language that is mentioned on yor resume ,like node js react or python and even c language
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Q3. Basics questions of os like deadlocks
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Q1. I was note selected for this round
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Q1. Write a java program to sort an array
Ans. 
Java program to sort an array of strings
• Use Arrays.sort() method to sort the array of strings

• Import java.util.Arrays package

• Example: String[] arr = {"apple", "banana", "orange"}; Arrays.sort(arr);
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Q2. Collections in java and springboot

Ans. 

Collections in Java and Spring Boot are used to store and manipulate groups of objects.

• Collections in Java are used to store multiple objects in a single unit.

• Spring Boot provides support for managing collections through various data structures like List, Set, Map, etc.

• Collections in Java and Spring Boot help in organizing and manipulating data efficiently.

• Example: List names = new ArrayList<>();

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