Comcast Software Development Engineer II Interview Questions and Answers

Q1. What is the difference between interface & abstract class
Ans. 
Interface is a contract with no implementation, while abstract class can have some implementation.
• Interface can only have abstract methods, while abstract class can have both abstract and non-abstract methods.

• A class can implement multiple interfaces but can inherit only one abstract class.

• Interfaces are used to achieve multiple inheritance in Java.

• Abstract classes can have constructors, while interfaces cannot.

• Example...read more
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Q1. What is different states in Activity lifecycle
Ans. 
Different states in Activity lifecycle include onCreate, onStart, onResume, onPause, onStop, onDestroy.
• onCreate - Activity is being created

• onStart - Activity is becoming visible to the user

• onResume - Activity is in the foreground and has focus

• onPause - Activity is partially visible but still running

• onStop - Activity is no longer visible to the user

• onDestroy - Activity is being destroyed
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Q1. HTML5 CSS3 Basics and Advanced
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Q2. Javascript Basics and Advanced
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Basic LIS problem. Coded using Java. Asked to improve it using collections.

Q1. Explain current project and what you have handled
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Q2. Longest substring problem
Ans. 
Find the longest substring without repeating characters in an array of strings.
• Iterate through each string in the array

• Use a set to keep track of characters seen so far

• Update the longest substring length as you iterate
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Generale questions about my previous experience

Q1. Leetcode problem solving
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Q2. Leetcode problem solving 2
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Q1. Basics of android
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Q2. MVVM, Clean Architecture
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Q3. Jetpack compose
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Q1. Question on resume
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Q2. LLD of sdk which i made in prev company
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Q1. LLD, HLD, Questions on mistake I did in my working career and all
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Create a Movie application on compose using mvvm