Forcepoint Java Developer Interview Questions and Answers

Q1. Data structures Core java Spring boot Hibernate
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Java,ETL (Power centre designing),SQL

Java,ETL(Power centre designing),SQL

Q1. Discuss about salary
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Q2. What is the annual income
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The annual income varies depending on factors such as experience, location, and job role.
• Annual income for Java Developers can range from $60,000 to $150,000 or more.

• Factors influencing income include years of experience, skill level, and the company's location and size.

• Senior Java Developers with extensive experience and expertise may earn higher salaries.

• Income can also be influenced by additional benefits such as bo...read more
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Aptitude ,reasoning ,small programs .it was easy.

Q1. Asked about java objects,classes .difference between interface and inheritence
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2 DSA question was asked

40 questions in 20 minutes

Q1. Stones games 2 leetcode
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Q2. Permutations of array
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Generate all possible permutations of an array of strings
• Use recursion to generate permutations

• Swap elements to create different permutations

• Base case: when array size is 1, return array as permutation
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Q1. Project discussion
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Common topics like sql and 30% aptitude problem

Q1. All about resume
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Q2. About project and area of interest
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Q1. Application building
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Q1. Difference between list and map
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List is an ordered collection of elements, while map is a collection of key-value pairs.
• List maintains the order of elements, while map does not guarantee any specific order.

• List allows duplicate elements, while map does not allow duplicate keys.

• In a list, elements are accessed by their index, while in a map, elements are accessed by their keys.
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Q1. Lookup vs graphlookup in mongodb
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Lookup is used to perform a left outer join in MongoDB, while graphlookup is used to perform recursive graph traversal.
• Lookup is used to perform a left outer join between two collections in MongoDB.

• Graphlookup is used to perform recursive graph traversal in a collection that contains graph data.

• Lookup can only perform a single level join, while graphlookup can perform multiple levels of traversal.

• Lookup is faster than
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Q2. Count frequency of each character in string
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Use a hashmap to count the frequency of each character in a string.
• Create a hashmap to store characters as keys and their frequencies as values.

• Iterate through the string and update the hashmap accordingly.

• Return the hashmap with character frequencies.
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Q1. Create a rest api all the way from controller to repository using NOTEPAD
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Creating a REST API from controller to repository using NOTEPAD
• Create a controller class with mapping annotations for REST endpoints

• Implement service layer to handle business logic and interact with repository

• Define repository interface with methods for data access operations

• Use Spring Boot for easy setup and configuration

• Test API endpoints using tools like Postman
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Q2. Couldnt write custom mongodb query at repository layer in notepad which rejected my candidature.
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