Bank of America Software Developer Interview Questions and Answers

Q1. Find array length
Ans. 
To find the length of an array in programming, use built-in functions or properties depending on the language.
• In JavaScript, use array.length: `let arr = ['a', 'b', 'c']; console.log(arr.length); // 3`

• In Python, use len(): `arr = ['a', 'b', 'c']; print(len(arr)) # 3`

• In Java, use array.length: `String[] arr = {'a', 'b', 'c'}; System.out.println(arr.length); // 3`

• In C#, use array.Length: `string[] arr = {'a', 'b', 'c'}; ...read more
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Q2. Find substring in a string
Ans. 
To find a substring in a string, we can use various methods like indexOf, includes, or regular expressions in programming languages.
• Use the indexOf method: 'hello'.indexOf('lo') returns 3.

• Use the includes method: 'hello'.includes('lo') returns true.

• Regular expressions: /lo/.test('hello') returns true.

• For case-insensitive search, convert both to the same case: 'Hello'.toLowerCase().includes('lo') returns true.
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1st round was Hirevue video assessment which had 5 questions .
1st - Tell us about yourself
2nd and 3rd were coding questions
4th was related to the 3rd coding question about its logic and alternate logic
5th was basically how are you fit for the role

Q1. This was a technical interview First I was asked to write a code for dupl8cate elements in an array. Then he asked me about concepts of OOPS , DBMS, and DSA
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Q2. About Constructors
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Q3. Java interface and inheritance
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Q4. HashMaps , Foriegn keys , OLTP , OLAP
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Two questions were given to be solved

Q1. Project related questions and basics of python
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The initial round was mixture of video interview and coding round.We will be asked 2 video interview questions and 2 coding questions

Q1. Introduce yourself in five minutes
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Q2. Tell about your projects and what are the challenges you faced while doing project
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Q3. If you find any challenge while doing project what is your approch to overcome it
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Q4. Till now in your career what is your biggest achievement
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Q5. If you given a string in which numbers are combined how to seperate the longest alphabetical sequence
Ans. 
The longest alphabetical sequence in a string of combined numbers can be separated using string manipulation and iteration.
• Iterate through the string character by character

• Check if the current character is alphabetical

• If it is, start building a substring of alphabetical characters

• If the next character is also alphabetical, add it to the substring

• If the next character is not alphabetical, compare the length of the curre...read more
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There were given 2 coding questions.It is done on hireview platform.After solving the second problem we have to tell the approach behind the code in video mode which will be recorded for evaluation.

Q1. They asked questions on projects, Oops concepts,python concepts and CN concepts as well.This round went around 35-40 minutes in webax meeting
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Q1. This round is actually HR round but for me they have technical questions.
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Q2. They asked me Oops concepts,given a string based question to code and some questions on projects.
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Q1. Python related basic
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Q2. Tuple list str, classes oops concept
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