Axis Bank Java Technical Lead Interview Questions and Answers

Java and sql questions

Q1. Basics of java ans core java
Add your answer

It was spring boot java based online round

Q1. Optional in java.
Add your answer
Q2. Eager and lazy initialization in simgleton design pattern
Ans. 
Eager initialization creates the instance of Singleton class at the time of class loading, while lazy initialization creates the instance only when it is required.
• Eager initialization can lead to resource wastage if the instance is never used.

• Lazy initialization is more efficient as it only creates the instance when needed.

• Eager initialization is thread-safe by default, while lazy initialization requires synchronizatio...read more
Answered by AI
Add your answer

Q1. Why string is immutable
Ans. 
String is immutable in Java to ensure thread safety, security, and optimization.
• Immutable strings are thread-safe as they cannot be modified concurrently by multiple threads.

• String pooling is possible due to immutability, saving memory and improving performance.

• Security is enhanced as sensitive information stored in strings cannot be altered.

• Examples: String str = "Hello"; str.concat(" World"); // str remains "Hello"
Answered by AI
Add your answer
Q2. What is spring aop
Ans. 
Spring AOP (Aspect-Oriented Programming) is a framework that provides cross-cutting concerns in a modular way.
• Spring AOP allows separating cross-cutting concerns from the main application logic.

• It enables developers to define aspects (cross-cutting concerns) separately and apply them to multiple classes.

• Examples of cross-cutting concerns include logging, security, and transaction management.
Answered by AI
Add your answer

Q1. Basic mcq's related to Java,spring Boot
Add your answer

Q1. Importance of Equals and hashcode
Ans. 
Equals and hashcode are important for object comparison and hashing in Java.
• Equals method is used to compare two objects for equality.

• Hashcode method is used to generate a unique integer value for an object.

• Equals and hashcode are used in collections like HashMap and HashSet for efficient retrieval and storage.
Answered by AI
Add your answer
Q2. Difference between comparable and comparator
Ans. 
Comparable is an interface used for natural ordering, while Comparator is an interface used for custom ordering.
• Comparable is implemented by the class itself to define the natural ordering of objects.

• Comparator is implemented by a separate class to define custom ordering of objects.

• Comparable uses the compareTo() method to compare objects, while Comparator uses the compare() method.

• Example: String class implements Comp...read more
Answered by AI
Add your answer
Q3. Write code for Singelton design pattern
Ans. 
Singleton design pattern ensures a class has only one instance and provides a global point of access to it.
• Create a private static instance of the class

• Provide a public static method to access the instance

• Ensure the constructor is private to prevent instantiation
Answered by AI
Add your answer
Q4. Difference b/w hashmap and hashtable
Ans. 
HashMap is non-synchronized and allows null values, while Hashtable is synchronized and does not allow null keys or values.
• HashMap is non-synchronized, while Hashtable is synchronized

• HashMap allows null values, while Hashtable does not allow null keys or values

• HashMap is faster than Hashtable

• HashMap is part of the Java Collections Framework, while Hashtable is a legacy class
Answered by AI
Add your answer

Q1. How do you resolve conflicts within the team
Add your answer
Q2. What went well in you last company? What didn't go well?
Ans. 
At my last company, effective communication and collaboration among team members went well, but there were challenges with project timelines and resource allocation.
• Effective communication and collaboration among team members

• Challenges with project timelines

• Challenges with resource allocation
Answered by AI
Add your answer

Q1. Java memory Managment
Add your answer
Q2. Garbage Collection
Add your answer

Print Dice combination based on the rolled output

Discussion and analysis on Java and System Design followed by DSA which was a live coding session.

MCQ assignment based on the Java skills

Q1. It was a 1 hr 15 min of Technical round
Add your answer

Q1. Scenerio based questions - duration 1 hr
Add your answer

Given coding test which were fairly simple

Q1. Technical Interview question revolving around core Java
Add your answer
Q2. Spring Boot and Spring MVC
Add your answer
Q3. Junits based development
Add your answer