Toppr Software Developer Interview Questions and Answers

Q1. About Lighnting Web componet
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Aptitude test was first round. it was hard level

Program on string, oops , exception handling

Hard test dsa question practice more leetcode

Q1. Dsa question Array Powershell scripting Cpp Python
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Explain about DSA and its example in realtime.

Q1. Explain about Android lifecycle
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Android lifecycle refers to the series of states that an activity or fragment goes through from creation to destruction.
• Android lifecycle includes states like onCreate, onStart, onResume, onPause, onStop, onDestroy, etc.

• Activities and fragments transition between these states based on user interactions and system events.

• Understanding Android lifecycle is crucial for managing resources, saving state, and handling config...read more
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Q2. Explain about fragment lifecycle
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Fragment lifecycle refers to the series of events that occur in the lifespan of a fragment in an Android app.
• Fragments go through various states like created, started, resumed, paused, stopped, and destroyed.

• Fragment lifecycle methods include onCreate(), onCreateView(), onResume(), onPause(), onStop(), onDestroy(), etc.

• Fragment lifecycle is closely tied to the hosting activity's lifecycle.

• Understanding fragment lifecyc...read more
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Q1. Data structures
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Q1. System Design fundamentals
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Q1. System Design questions
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Q1. What do you think about the negative news going around the company
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Q1. Why join this company
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45 mins, Amcat , Basic to advance question

2 hrs duration with 2 easy level dsa questions and 15 around mcqs based on core cs concepts.

Q1. Implement stack using linked list.
Ans. 
Implementing stack using linked list
• Create a Node class with data and next pointer

• Create a Stack class with top pointer

• Implement push() method to add element to top of stack

• Implement pop() method to remove element from top of stack

• Implement peek() method to return top element without removing it
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Q2. Print first duplicate value in a string.
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Find the first duplicate value in an array of strings.
• Create a hash table to store the frequency of each string.

• Iterate through the array and check if the string already exists in the hash table.

• If it does, return the string. If not, add it to the hash table.

• If no duplicates are found, return null or an appropriate message.
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