TechInfini Associate Software Developer Interview Questions and Answers

Q1. What is the difference between an abstract class and an interface in object-oriented programming?
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have method implementations, while interface cannot.

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

• Interfaces are used to define contracts for classes to implement, while abstract classes are used to provide a common base for subclasses.

• Example: Abstr...read more
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Q2. Abstract classes can have implemented methods; interfaces can only have declarations (before JAVA 8).
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Q1. What is the implementation of Merge Sort in Java?
Ans. 
Merge Sort is a divide and conquer algorithm that divides the input array into two halves, recursively sorts them, and then merges the sorted halves.
• Divide the input array into two halves

• Recursively sort the two halves

• Merge the sorted halves back together
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Q2. What is the implementation of the Quick Sort algorithm in Java?
Ans. 
Quick Sort is a popular sorting algorithm that uses a divide-and-conquer approach to sort elements in an array.
• Choose a pivot element from the array.

• Partition the array into two sub-arrays: elements less than the pivot and elements greater than the pivot.

• Recursively apply the same process to the sub-arrays.

• Combine the sorted sub-arrays to get the final sorted array.
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Q1. Design tinyurl system design
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Asked to write a bank application - which includes adding,removing,transferring of money

Q1. Basic all type questions
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Q1. Project related and technology se related
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First round is apti when in placement

Too hard all are dsa questions

Q1. Details of what we did on college , project and few programs .
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1.30
Basic profit/loss,percentages questions

Q1. 1 hr Asked about closures, hoisting, map, hash
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Q2. Closures and scopes
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Q3. Dsa 2 sum problem
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Q4. Projects and basicjs
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Q1. Basic related to location, timings
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