Data Economy Software Engineer Interview Questions and Answers

There will be 3 coding questions. They are of medium and hard level.

Q1. Sort array consisting 0's 1's and 2's without inbuilt functions
Ans. 
Sort an array of 0's, 1's, and 2's without using inbuilt functions.
• Use three pointers to keep track of the last index of 0's, 1's, and 2's

• Iterate through the array and swap elements based on their value

• Continue until all elements are sorted
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Q1. Os cn related questions
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Q1. Java questions and general hr questions
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Q1. MCQ questions testing your knowing in aptitude, logical reasoning, English and speech.
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Q2. 2 basic programs which you could solve using Java.
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Q1. Basic questions related to Java like "Mention 2 OOPS concepts, their definition, advantages, difference between stack and array, etc."
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Q2. Execute a basic SQL query in online SQL compiler.
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Q3. Java program to find if an Array List contains duplicate elements using online Java compiler.
Ans. 
Java program to check for duplicate elements in an ArrayList of strings.
• Iterate through the ArrayList and use a HashSet to store elements as you go.

• If an element is already in the HashSet, it is a duplicate.

• Return true if duplicates are found, false otherwise.
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Q1. Surprisingly, the most difficult round by far. The HR asked in depth about my project, so don't include projects which you are not very in-depth with. Also asked me to introduce myself without mentioning g...read more
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Q1. Basic oops concepts and core java questions
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Q1. Compensation discussion
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General and basic data structure question

Q1. Coding over the video call
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Q2. Java programs for strings , palindrome etc
Ans. 
Java programs for strings, palindrome, etc.
• Use the StringBuilder class to manipulate strings efficiently.

• To check if a string is a palindrome, compare it with its reverse.

• To count the occurrences of a substring in a string, use the indexOf method in a loop.

• To split a string into an array of substrings, use the split method.
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Q3. Projects questions on which you have worked
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Q4. Explanation skill will also be considered
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Apptitude test is a mathematical reasoning in apptitude test there are many reasonings

It is based on programming on coding test.

Python slq apti path json sksa

Q1. Problem solving in python
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Q2. Solving problems in oython
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Basic Apti , ex train ,speed work

From Leetcode questions

Q1. Related about real time java questions
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Q1. What about your self
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Q2. Do you have any experience
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