Gut Lernen Technocraft Interview Questions and Answers

Programs of Strings to reverse without using inbuilt function
Arrays and arraylist programs

Q1. Framework Structure ArrayList vs HashMap
Ans. 
ArrayList is a dynamic array to store elements, while HashMap is a key-value pair data structure for fast retrieval.
• ArrayList is ordered and allows duplicate elements, HashMap is unordered and does not allow duplicate keys.

• ArrayList uses indexes to access elements, HashMap uses keys to access values.

• ArrayList is ideal for storing a collection of objects, HashMap is suitable for mapping keys to values.

• Example: ArrayList...read more
Answered by AI
Add your answer
Q2. Array vs ArrayList vs HashMap
Ans. 
Array is a fixed-size collection of elements, ArrayList is a dynamic array that can grow in size, and HashMap is a key-value pair collection.
• Array: Fixed size, faster access, can store primitive data types and objects.

• ArrayList: Dynamic size, slower access than array, can store objects only, provides methods for adding, removing, and accessing elements.

• HashMap: Key-value pairs, allows for fast retrieval of values based
Answered by AI
Add your answer

60 questions in 60 minutes

Q1. Concepts of SQL
Add your answer
Q2. Concept of tecgnical skill in resume
Add your answer