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10,456 developer android interview questions shared by candidates

- 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.
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Android Developer

Interviewed at Booking.com

4★
Jun 5, 2016

- 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.

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.
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Senior Android Developer

Interviewed at PhonePe

4.1★
Aug 11, 2020

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.

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