Swiggy React Native Developer Interview Questions and Answers

Medium question on hashmap

Q1. Design question which checks oops concept and data structure
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Q1. What is the maximum bundle size?
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The maximum bundle size for Android apps is 150 MB.
• The maximum bundle size for Android App Bundles is 150 MB.

• This includes the size of the base module and all dynamic feature modules.

• If the app exceeds this size, it may not be able to be installed on devices with limited storage.
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Q2. Lifecycle of views
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Views in Android have a lifecycle that includes creation, starting, pausing, resuming, stopping, and destroying.
• Views are created when the layout is inflated or added programmatically.

• Views start when they become visible on the screen.

• Views pause when they lose focus but are still visible.

• Views resume when they regain focus.

• Views stop when they are no longer visible on the screen.

• Views are destroyed when the activity i...read more
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Q1. Lazy vs latinit
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lazy vs lateinit are both used in Kotlin to delay the initialization of variables, but lazy is for val properties and lateinit is for var properties.
• lazy is a property delegate that initializes the value only upon first access

• lateinit is used for var properties that are guaranteed to be initialized before accessing them

• lazy can be used for properties that are computationally expensive to initialize, while lateinit is u...read more
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Q2. Hashmap vs hashtable
Ans. 
Hashtable is synchronized and slower, while hashmap is not synchronized and faster.
• Hashtable is synchronized, while hashmap is not.

• Hashtable does not allow null keys or values, while hashmap allows one null key and multiple null values.

• Hashtable is thread-safe, while hashmap is not.

• Hashtable is slower than hashmap due to synchronization.

• Example: Hashtable ht = new Hashtable(); HashMap hm = new HashMap();
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Q1. Activities lifestyle
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Q2. Compose kotlin
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Q1. Solid principle
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Q1. Basic JS question event loop, promises, polyfill.
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Q2. JS output based, Flatten object.
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Q1. Asked about my current work
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Q1. Spiral Matrix Leetcode
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Q2. Basic Kotlin , Java questions & basic Android related to service , recycler view & viewmodel
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