Infosys Java Developer Interview Questions, Process, and Tips

Q1. Asked about Java concepts and APIs
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Any java based questions

Q1. Java based questions
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Q2. General knowledge
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Q3. Java related questions
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Quite good nice easy question to attend

Q1. Oops,java8, hibernate, spring
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Q1. Write a program to find the missing element from the array.
Ans. 
Program to find missing element from array of strings
• Iterate through the array and store elements in a HashSet

• Iterate through another array and check if each element is present in the HashSet

• Return the element that is not present in the HashSet
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Q1. What is the jQuery ajax GET request syntax?
Ans. 
The jQuery ajax GET request syntax is used to send an HTTP GET request to a server and retrieve data.
• Use the $.ajax() method with the 'type' parameter set to 'GET'

• Specify the URL of the server endpoint as the 'url' parameter

• Handle the response using the 'success' callback function

• Optionally, pass data to the server using the 'data' parameter
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Q2. WAJP to establish a JDBC connection and fetch results from a database and print those results.
Ans. 
Establish a JDBC connection and fetch results from a database using Java.
• Import the necessary JDBC packages

• Load and register the JDBC driver

• Establish a connection to the database

• Create a statement object

• Execute a query to fetch results

• Iterate over the result set and print the results

• Close the result set, statement, and connection
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Q1. Tell me about yourself.
Ans. 
I am a Java Developer with 5 years of experience in developing web applications using Java, Spring, and Hibernate.
• 5 years of experience in Java development

• Proficient in Spring and Hibernate frameworks

• Strong knowledge of web application development

• Experience in working with databases like MySQL and Oracle

• Familiarity with Agile development methodologies
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Q2. What would you rate yourself in java on the scale of 1 to 10?
Ans. 
I would rate myself as an 8 in Java.
• I have extensive experience in Java programming and have successfully completed multiple projects using Java.

• I am familiar with various Java frameworks and libraries.

• I have a strong understanding of object-oriented programming principles in Java.

• I am comfortable working with Java's core features and APIs.

• I continuously strive to improve my Java skills through self-learning and stayin...read more
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Q1. Oops concepts , exception handling
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