Acudí a una entrevista en Tata Consultancy Services (Bengaluru)
Entrevista
Here’s a categorized list of Java Developer interview questions, covering core concepts, OOP, collections, multithreading, and more—suitable for beginner to intermediate-level roles:
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Core Java
1. What are the main features of Java?
2. Explain the JVM, JRE, and JDK.
3. What is the difference between == and .equals() in Java?
4. What is autoboxing and unboxing?
5. What are wrapper classes?
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Object-Oriented Programming (OOP)
1. Explain the four pillars of OOP in Java.
2. What is method overloading and method overriding?
3. What is the difference between abstract class and interface?
4. Can we create an object of an abstract class?
5. What is the use of super and this keywords?
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Exception Handling
1. What is the difference between checked and unchecked exceptions?
2. What is the use of finally block?
3. Can we have multiple catch blocks for a single try?
4. What is the difference between throw and throws?
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Collections Framework
1. What is the difference between ArrayList and LinkedList?
2. How does HashMap work internally?
3. What is the difference between HashMap and Hashtable?
4. What are the differences between Set
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Otras evaluaciones sobre las entrevistas para el cargo de Senior Java Developer en Tata Consultancy Services
Acudí a una entrevista en Tata Consultancy Services
Entrevista
walk in drive having multiple rounds of interview based on experience of the individual, domain based problem solving and technology based questions alongside project based review questions, lastly, managerial or behavior round.
Preguntas de entrevista [1]
Pregunta 1
HR process was inefficient and overall interview process was not at all well-defined.
Me postulé a través de un reclutador. El proceso tomó 1 día. Acudí a una entrevista en Tata Consultancy Services (Pune) en jun 2026
Entrevista
It was face to face round, waited for 4-5 hr.
After a long wait technical rounds happened, This opening for springboot, microservices.
I think Interviewer was completely tired and asked some technical question and done.
This is not expected from tcs hiring team, waited whole day and this type of behavior by interviewer.
Waste of time and effort
Preguntas de entrevista [1]
Pregunta 1
Directly aks below questions, no introducition, no project details, nothing.
Different between inject and autowired
Have you worked on jsp? Do you know servlet?
Ok done. Is this a joke?
Acudí a una entrevista en Tata Consultancy Services (Hyderabad)
Entrevista
Overall the interview was around basics of java programming and oracle. The difficulty level of questions would be easy. It is about java streams and oracle joins. Finding the largest salary of an employee, foreign key relationship