Software Developer Java Interview Questions

4,194 software developer java interview questions shared by candidates

Given a set of numbers (included multiple occurences), return true iff there is at least a number with more than 3 occurences, otherwise false. Describe algorithm, implement and discuss complexity Variation: Iff there is at least a number with exactly 3 occurences.
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Software Engineer - Java

Interviewed at ELCA Informatique

3.7
Apr 14, 2023

Given a set of numbers (included multiple occurences), return true iff there is at least a number with more than 3 occurences, otherwise false. Describe algorithm, implement and discuss complexity Variation: Iff there is at least a number with exactly 3 occurences.

basics on DS, oops, multithreading, springboot, restAPI, exceptions logic to find if number is odd or even without using * , / and + inheritance concept in depth - same parent class variables, methods used in child class - method overriding through inheritance all cases. internal working of hashMap, Hashset. Stringpool memory concepts. garbage collector, JVM.. platform independency.
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Software Engineer - Java Developer

Interviewed at FIS

3.5
Jul 22, 2021

basics on DS, oops, multithreading, springboot, restAPI, exceptions logic to find if number is odd or even without using * , / and + inheritance concept in depth - same parent class variables, methods used in child class - method overriding through inheritance all cases. internal working of hashMap, Hashset. Stringpool memory concepts. garbage collector, JVM.. platform independency.

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