1. Difference between ArrayList and Hashmap? 2. Given a sample code and will ask everything about Android?
Android Engineer Interview Questions
9,773 android engineer interview questions shared by candidates
How much experience you have?
- Coding challenges: I did 8 coding challenges, these are the one I remember: Pascal triangle, find first non repeating character in a string, implement Android findViewById, Go game: recognize if a stone is captured (onsite challange). - Data structure related: Internals of HashMap and TreeMap; time complexity for .indexOf and .remove i most common collections. - Android related: How would you implement the layout of our hotel list? How would you implement a image loading mechanism? Questions related to async operations and memory leaks. Basic questions about activity and fragment lifecycle and state restoration. - Business oriented questions: Describe a feature you would implement and how you would measure if it is successful or not.
How EventBus works?
What's a Singleton Pattern? How would you implement it in Java?
Androi battery consumption, memory leaks
Do you know Kotlin?
something related to BST traversing
Online Test: Print top view of binary tree.(have few invalid test cases result what i felt which can waste your time) A problem statement with java classes you have to write few functions based on problem statement to give result. Find no. of groups of anagrams from given list of strings. Find max sum sub array. Print Left View of binary tree. Print bottom view of binary tree.
Question is similar to "How to check whether two permutations of a string are the same".
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