eClinicalWorks Java Developer Interview Questions and Answers

Q1. Coding to find the excel column name using given number
Ans. 
Convert given number to Excel column name
• Use ASCII values to map numbers to characters (A=65, B=66, ...)

• Divide the number by 26 to get the column name

• Handle edge cases like 'Z' and multiple characters
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Q2. Streams program to find the numbers divisible by2
Ans. 
Using Java streams to find numbers divisible by 2
• Use Java streams to filter numbers divisible by 2

• Use the filter() method with a lambda expression to check for divisibility by 2

• Collect the filtered numbers into a list or array
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Q3. Synchronized block and method, use of lock in method
Ans. 
Synchronized block and method are used in Java to control access to shared resources using locks.
• Synchronized block allows locking on a specific object instance or class

• Synchronized method locks on the object instance

• Locks prevent multiple threads from accessing the synchronized code simultaneously
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Q4. Rest api validation
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Q1. Dsa question, I don’t remember
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Q2. Check if the sentence is palindrome or not
Ans. 
To check if a sentence is a palindrome, compare it with its reverse form.
• Remove all non-alphanumeric characters and convert the sentence to lowercase.

• Reverse the sentence and compare it with the original sentence to check for palindrome.

• Example: 'A man, a plan, a canal, Panama' becomes 'amanaplanacanalpanama' after removing non-alphanumeric characters and converting to lowercase.
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Q1. Discussion was on Binary tree and tree traversal. Asked me to write binary tree complete program to insert amd traversal of binary tree with few changes on how to insert.
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Q2. In depth discussion on my experience my projects.
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Q1. Easy Questions - Oops Concept . real life examples Abstract Class Inheritance difference Final vs immutable Spring Concepts - dependency injection,about @autowired
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Q1. English Test - Speaking Fluent Eglish
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Q1. Tell me about your self
Ans. 
I am a passionate software developer with 5 years of experience in building web applications using various technologies.
• 5 years of experience in software development

• Proficient in building web applications

• Skilled in using various technologies
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Q2. Resume discussion
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I was given a problem to solve.

Q1. Was asked about Java and JavaScript. Technical questions
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Q2. Oops concepts with relevance to objects and classes
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Q3. Core java concepts
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Q4. Sql queries were asked given a table for reference
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Q1. Behavioural questions
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Q1. Entity framework
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Q2. .net core questions
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