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Fresher Java Interview Questions
166 fresher java interview questions shared by candidates
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1. In-House Assessment Test: 10 MCQs on Core Java Topics: These covered concepts such as threads, JVM internals, OOP principles, and the collection framework. 5 MCQs on Basic Database Concepts: Focused on join queries and their applications. 5 Programming Questions: Asked to implement concepts like inheritance, polymorphism, abstraction, encapsulation, and overriding. 3-4 SQL Queries: Focused on join operations and aggregate functions to assess practical SQL knowledge. 2. Technical Round: OOP Concepts: Explained the principles of Object-Oriented Programming with real-world examples. Collection Framework: Described the collection framework in Java, including sub-questions on ordered and unordered classes within it. JVM Internals: Provided an explanation of the Java Virtual Machine internals, including a diagram to illustrate its architecture. Database Questions: Answered questions related to database management, focusing on query optimization and relational database concepts. Project Implementation: Discussed how I applied these concepts in my project, explaining the practical usage of OOP, JVM internals, the collection framework, and database queries.
It all started with oops language implementation code with real life examples, then came a data structure question on sorting following which came the scenario based question in which I had to extract the hidden task and explain the implementation/idea of approach to interviewer first followed by choosing a specific language to show the flowchart , algorithm/pseudocode.
Better be thorough prepare do not take lightly Practice all the string concept,sql databases queries 20 mcqs(java) question, 5 programimg questions,5 database question Practice your programimg on pen and paper.
1)show string is palindrome. interviewer will ask questions based on access specifier, what will be the output if i do this, object oriented , polymorphism, threads etc.
How to find weather number is even or odd, without using ?, if() and /. ?
How to find number of repeating alphabets in an String?
How to find middle number of an array, without using operators?
java questions about Strings , overloading and overriding concept, wrapper classes , singleton pattern , binary search , bubble sort etc..
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