Bank of America Senior Software Engineer Interview Questions and Answers

Q1. Basic Java and react question
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Q1. Little technical and project oriented question
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Basic hacker rank problem

Q1. Asked few questions on react and java
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Q1. Write a program to check numer is palindrom or not.
Ans. 
Program to check if a number is a palindrome or not.
• Convert the number to a string to easily check for palindrome

• Reverse the string and compare it with the original string

• If they are the same, the number is a palindrome
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Q2. What is the functionality of Lambda Expression in Java.
Ans. 
Lambda expressions in Java are used to provide a concise way to represent anonymous functions.
• Lambda expressions are used to define inline implementation of a functional interface.

• They enable you to pass functionality as an argument to a method.

• Lambda expressions are made up of parameters, an arrow, and a body.

• Example: (a, b) -> a + b
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Q3. How to call default method of interface if class implemented multiple interfaces.
Ans. 
To call a default method of an interface when a class implements multiple interfaces, use the interface name followed by the method name.
• Use InterfaceName.super.methodName() to call the default method of a specific interface.

• If a class implements multiple interfaces with default methods of the same name, you must specify the interface name to call the desired method.

• Example: Interface1.super.defaultMethod() to call the
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Q1. Lots of technical questions but the interview was not technical..
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Q2. What is JIT compiler
Ans. 
JIT compiler stands for Just-In-Time compiler, which compiles code during runtime instead of ahead of time.
• JIT compiler improves performance by compiling code on the fly as it is needed

• It converts bytecode into native machine code for execution

• Examples include Java HotSpot JIT compiler and .NET JIT compiler
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Q3. What are futures
Ans. 
Futures are financial contracts that obligate the buyer to purchase an asset or the seller to sell an asset at a predetermined future date and price.
• Futures are standardized contracts traded on exchanges, where the buyer agrees to purchase an asset at a future date for a price agreed upon today.

• They are commonly used in commodities, currencies, and financial instruments trading.

• Futures allow investors to hedge against ...read more
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Q4. What is GC and what types we have
Ans. 
GC stands for Garbage Collection, a process in programming languages where unused memory is automatically reclaimed.
• Types of GC include: Mark and Sweep, Reference Counting, Generational, and Incremental.

• Mark and Sweep: Identifies and removes unreachable objects.

• Reference Counting: Keeps track of the number of references to an object and deletes it when the count reaches zero.

• Generational: Divides objects into different...read more
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Q5. Walk me through a trading process
Ans. 
A trading process involves buying and selling financial instruments in the market.
• Research and analysis of market trends and opportunities

• Placing buy or sell orders through a trading platform

• Monitoring and managing open positions

• Executing trades based on predetermined strategies

• Recording and analyzing trade data for performance evaluation
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