Hitachi Digital Services Associate Engineer Interview Questions and Answers

Q1. Linear search how to find algorithm
Add your answer

Basics analytical questions

Q1. Core java and basics sql
Add your answer
Q2. Html,CSS, basics questions
Add your answer

Q1. Tell me about your self
Add your answer
Q2. Salary discussions
Add your answer

Basic coding in Java. MySql, HTML.

Adavance coding in Java programming.

Q1. About salary. Location.
Add your answer

6 sections with section timings
Aptitude 10 questions
Reasoning 10 questions
Coding 1(30min)
Data structure 10
Pseudo Code 10
About Company 5

Topic 1-drone
Topic - self driving cars

Q1. Program to count spaces in string Program to print only digits in string
Ans. 
Program to count spaces and print digits in string
• For counting spaces, loop through the string and check for ' ' character

• For printing digits, loop through the string and check for '0' to '9' characters

• Use isdigit() function in Python to check for digits

• Use a counter variable to keep track of spaces

• Use a separate string variable to store digits and print it at the end
Answered by AI
Add your answer
Q2. Why string is immutable
Ans. 
String is immutable because it cannot be changed once created.
• Immutable objects are safer to use in multi-threaded environments

• String pool in Java is possible because of immutability

• StringBuffer and StringBuilder are mutable alternatives to String
Answered by AI
Add your answer
Q3. About Constructor Dictionary Access modifiers in python
Add your answer

Q1. Which is difficult program that you wrote in python Which is difficult program wrote in c Dictionary use with code implications
Ans. 
Difficult program in Python: A web scraper to extract data from dynamic websites. Difficult program in C: A program to implement a custom data structure.
• Python program required knowledge of web scraping libraries like BeautifulSoup and Selenium

• C program required understanding of memory management and pointers

• Python program had to handle dynamic website elements and login authentication

• C program had to implement a custo...read more
Answered by AI
Add your answer

Q1. Self intro About Company Hobbies Related to resume
Add your answer

Q1. Self intro Intrested field
Add your answer

Arrays sort using largest element

Q1. Tell about yourself
Add your answer

Q1. What is a stack and implement it
Ans. 
A stack is a linear data structure that follows the Last In First Out (LIFO) principle.
• Elements are added to the top of the stack and removed from the top as well.

• Common operations include push (add element to top) and pop (remove element from top).

• Stacks can be implemented using arrays or linked lists.

• Example: undo/redo functionality in a text editor.

• Example: function call stack in programming languages.
Answered by AI
Add your answer
Q2. What is hashing and does it have key?
Ans. 
Hashing is a process of converting data into a fixed-size output. It has a key that is used to access the data.
• Hashing is used to store and retrieve data quickly.

• It uses a hash function to generate a unique key for each input data.

• The key is used to access the data in constant time.

• Hashing is used in password storage, data indexing, and cryptography.

• Examples of hash functions include MD5, SHA-1, and SHA-256.
Answered by AI
Add your answer