AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
AT&T Java Developer Interview Questions and Answers
AT&T Java Developer Interview Experiences
2 interviews found
Anonymous
Selected
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Tell me about your self.
- Q2. Why do you join this company.
- Q3. What is Oops concepts in java.
- Q4. What are the main features of java.
- Q5. What is the difference between JDK, JRE, AND JVM.
Skills evaluated in this interview
(2 Questions)
- Q1. How to pull the large amount of data in spring data jpa
- Q2. Write singleton class
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
I applied via Company Website and was interviewed in Aug 2022. There were 2 interview rounds.
Oops, singleton, api, array problems, logical part, springboot, hibernate
(2 Questions)
- Q1. Hibernate coding, sessionFactory, git, maven, oops concepts, multithreading, synchronisation, String
- Q2. Introduction about yourself, project flow, why do you want to switch
- Ans.
I am a Java Developer with experience in project flow and looking to switch for new challenges.
I have been working as a Java Developer for the past 5 years.
I have experience in developing and maintaining Java applications.
I am familiar with the project flow and have worked on various stages of software development life cycle.
I am seeking new opportunities to enhance my skills and work on challenging projects.
I am looki...
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed before Nov 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Asking related to java, and good knowledge of Oops concepts
- Q2. Basic java program
- Ans.
A basic Java program typically includes a class definition, a main method, and simple output statements.
Java programs start with a class definition: 'public class MyProgram {}'
The main method is the entry point: 'public static void main(String[] args) {}'
Use 'System.out.println()' to print output: 'System.out.println("Hello, World!");'
Java is case-sensitive, so 'System' and 'system' are different.
Every Java program mus...
(2 Questions)
- Q1. Asking past project and technology that you are using
- Ans. Why u want to change
- Q2. API related question like rest, sop
What people are saying about AT&T
Java Developer Interview Questions & Answers
Ericsson
Mudimudugu Praveen Kumar
posted on 14 May 2025
Selected
I appeared for an interview in Apr 2025, where I was asked the following questions.
- Q1. Tell me about your self.
- Q2. Why do you join in this company.
- Q3. What is java
- Q4. What is an encapsulation
- Q5. Difference between python and java.
- Ans.
Java is a statically typed, compiled language, while Python is dynamically typed and interpreted, affecting their syntax and performance.
Java requires explicit declaration of variable types (e.g., int x = 5;), while Python infers types (e.g., x = 5).
Java uses a class-based object-oriented model, whereas Python supports multiple programming paradigms, including procedural and functional.
Java code is compiled into byteco...
(3 Questions)
- Q1. Tell me about your self
- Q2. Why you want to change the company
- Q3. Why you left your previous company
Interview Preparation Tips
Abhishek Verma
Selected
I applied via Campus Placement and was interviewed before Mar 2023. There were 4 interview rounds.
Online aptitude test only 30 -45
Questions
2 -3 coding question
(1 Question)
- Q1. Dbms, java, oops
(1 Question)
- Q1. Personality based questions
Selected
I applied via Walk-in and was interviewed in Jun 2023. There were 5 interview rounds.
For freshers there is online aptitude test.
Coding round is done by interviewers on live screen sharing
(1 Question)
- Q1. Here they discuss about projects and work in depth.
(2 Questions)
- Q1. Tell me about yourself? What are your hobbies? If you get chance to work with our company what is your expectations from us?
- Q2. Discuss about policies and work culture
I applied via Recruitment Consultant and was interviewed before Apr 2020. There were 5 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Just started myself introduction.
- Q2. Inform about myself and nothing so much they asked.
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. The questions primarily started with discussion on my internships and minor project
- Q2. Many questions were asked about OOPs concepts like virtual function, multiple inheritance, function overloading etc you are supposed to define and implement all of them on paper
- Q3. I was asked about my favorite subject, opted computer networks. So, was asked about computer networks basics like ISO OSI, virtual LANs, QoS, AdHoc networks, WiiMax and Wifi
Interview Preparation Tips
Experience: Technical continues for about 35 minutes, the questions primarily started with discussion on my internships and minor project.
Many questions were asked about OOPs concepts like virtual function, multiple inheritance, function overloading etc you are supposed to define and implement all of them on paper.
I was asked about my favorite subject, opted computer networks. So, was asked about computer networks basics like ISO OSI, virtual LANs, QoS, AdHoc networks, WiiMax and Wifi.
Round: HR Interview
Experience: I was primarily asked about my family background, likes, hobbies etc
College Name: NA
AT&T Interview FAQs
Tell us how to improve this page.
AT&T Interviews By Designations
- AT&T Network Engineer Interview Questions
- AT&T Senior Manager Interview Questions
- AT&T Technical Specialist Interview Questions
- AT&T Java Developer Interview Questions
- AT&T Intern Interview Questions
- AT&T Technical Intern Interview Questions
- AT&T Senior Technical Specialist Interview Questions
- AT&T Data Scientist Interview Questions
- Show more
Interview Questions for Popular Designations
Overall Interview Experience Rating
based on 2 interview experiences
Difficulty level
Duration
Java Developer Interview Questions from Similar Companies
AT&T Java Developer Reviews and Ratings
based on 1 review
Rating in categories
|
Senior Associate
319
salaries
|  ₹7.9 L/yr - ₹26 L/yr |
|
Technical Specialist
313
salaries
| ₹14 L/yr - ₹38 L/yr |
|
Network Engineer
234
salaries
| ₹3.3 L/yr - ₹15 L/yr |
|
Senior Technical Specialist
159
salaries
| ₹21.2 L/yr - ₹55 L/yr |
|
Senior Network Engineer
110
salaries
| ₹7 L/yr - ₹27 L/yr |
Jio
Vodafone Idea
Bharti Airtel
Ericsson
- Home >
- Interviews >
- AT&T Interview Questions
