TJSB Sahakari Bank IT Officer Interview Questions and Answers

Prepare Ds algo - array, link list, stack, queue. And advance things of your domain

DS apti questions oral

Q1. Ds algo plus your domain discussion. Previous projects
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Leetcode medium 2 question in 60 minutes.

Leet code hard 1 question

Q1. Design a hashmap and internal working .. then few questions on linked hashmap
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Q2. Assignment to make a snake and ladder
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It was quantitative aptitude test with some coding questions

Q1. This round was to majorly check our confidence and communication style. I was asked to explain the projects that I have done..then some general analytical based questions that were non technical.
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Q2. Why didn't you want to pursue higher studies?
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Q3. Tell me about urself and the projects you have done
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One linked list and one bst ques

There was a Coding test on Hackerrank platform of 2 hrs

Q1. Tell me about yourself
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Q2. What are your Salary expectations
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Q1. Difference between jvm,jdk and jre
Ans. 
JVM is the Java Virtual Machine that executes Java bytecode, JDK is the Java Development Kit for developing Java applications, and JRE is the Java Runtime Environment for running Java applications.
• JVM is a virtual machine that executes Java bytecode, providing a runtime environment for Java programs.

• JDK is a development kit that includes tools for developing, debugging, and monitoring Java applications.

• JRE is a runtime...read more
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Q2. Basic concepts of core java
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Q3. About the previous roles and responsibilities
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Q4. About their project discription
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Coding round consisted of three problems with easy to moderate level difficulty.

Q1. Variation of Minimum number of platforms required for railway station.
Ans. 
Minimum number of platforms required for a railway station depends on the maximum number of trains arriving and departing at the same time.
• Calculate the maximum number of trains arriving and departing at the same time.

• Determine the time intervals for each train's arrival and departure.

• Add extra platforms for buffer and unexpected delays.

• Consider factors like train length, frequency, and scheduling conflicts.

• Example: If...read more
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Q2. Rearrange the array such that the negative numbers are shifted to the beginning.
Ans. 
Rearrange array with negative numbers at the beginning
• Iterate through the array and move negative numbers to the beginning

• Use two pointers approach to swap elements

• Maintain the order of negative numbers while shifting them to the beginning
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Q1. Implement a simple program using multithreading.
Ans. 
A simple program using multithreading can be implemented to demonstrate parallel execution of tasks.
• Create a class that implements the Runnable interface in Java.

• Override the run() method to define the task that will run in a separate thread.

• Create instances of the class and start them using the Thread class.

• Use synchronization mechanisms like locks or semaphores to manage shared resources in a thread-safe manner.
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Q2. Explain in details about the Java Collections API.
Ans. 
Java Collections API provides a set of classes and interfaces to store and manipulate collections of objects.
• Includes interfaces like List, Set, and Map for different types of collections

• Provides classes like ArrayList, HashSet, and HashMap for implementing collections

• Offers utility classes like Collections for common operations on collections

• Introduced in Java 2 and has been expanded in subsequent versions
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Leetcode medium questions using priority queue. I don't remeber exact now

Q1. Interview round was vry simple binary tree mirror question
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Q1. 5 mins round. basics like location
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