Software Engineer Android Interview Questions

10,456 software engineer android interview questions shared by candidates

Java: * primitives vs objects * synchronization, wait, notify * standart collections Android: * main components * permissions * history of android versions and changes there RxJava: * Observers * multi threading * different Subject
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Senior Android Developer

Interviewed at Kaspersky

4
Oct 17, 2021

Java: * primitives vs objects * synchronization, wait, notify * standart collections Android: * main components * permissions * history of android versions and changes there RxJava: * Observers * multi threading * different Subject

You are given an array of arrays a. Your task is to group the arrays a[i] by their mean values, so that arrays with equal mean values are in the same group, and arrays with different mean values are in different groups. Each group should contain a set of indices (i, j, etc), such that the corresponding arrays (a[i], a[j], etc) all have the same mean. Return the set of groups as an array of arrays, where the indices within each group are sorted in ascending order, and the groups are sorted in ascending order of their minimum element.
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Android Developer

Interviewed at Turing

3.5
Jul 19, 2020

You are given an array of arrays a. Your task is to group the arrays a[i] by their mean values, so that arrays with equal mean values are in the same group, and arrays with different mean values are in different groups. Each group should contain a set of indices (i, j, etc), such that the corresponding arrays (a[i], a[j], etc) all have the same mean. Return the set of groups as an array of arrays, where the indices within each group are sorted in ascending order, and the groups are sorted in ascending order of their minimum element.

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