Junior Ios Developer Interview Questions

352 junior ios developer interview questions shared by candidates

Find the Longest Substring Without Repeating Characters Problem Statement: Given a string s, find the length of the longest substring without repeating characters. Input: A string s containing only ASCII characters (length between 0 and 10⁵). Output: An integer representing the length of the longest substring without repeating characters. Examples: Input: s = "abcabcbb" Output: 3 Explanation: The answer is "abc", with a length of 3. Input: s = "bbbbb" Output: 1 Explanation: The answer is "b", with a length of

Junior IOS Developer

Interviewed at YANDEX

4.3
Jan 17, 2025

Find the Longest Substring Without Repeating Characters Problem Statement: Given a string s, find the length of the longest substring without repeating characters. Input: A string s containing only ASCII characters (length between 0 and 10⁵). Output: An integer representing the length of the longest substring without repeating characters. Examples: Input: s = "abcabcbb" Output: 3 Explanation: The answer is "abc", with a length of 3. Input: s = "bbbbb" Output: 1 Explanation: The answer is "b", with a length of

1. What is view controller 2. What is navigation view controller 3. What is inheritance 4. difference between objective c and swift 5. what is thread 6. what is category 7. what is atomic and nonatomic 8. which are application state 9. what is difference between inactive state and background state Machine Test 1. Json parsing 2. Show data from json to table view 3. On cell's long press, cell data should be removed from table view 4. Insert data from json to sqlite database 5. On loading app or refresh, data should be came from sqlite database.
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Junior IOS Developer

Interviewed at Avinashi Systems

3.6
Aug 9, 2016

1. What is view controller 2. What is navigation view controller 3. What is inheritance 4. difference between objective c and swift 5. what is thread 6. what is category 7. what is atomic and nonatomic 8. which are application state 9. what is difference between inactive state and background state Machine Test 1. Json parsing 2. Show data from json to table view 3. On cell's long press, cell data should be removed from table view 4. Insert data from json to sqlite database 5. On loading app or refresh, data should be came from sqlite database.

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