One Network Enterprises Interview Questions and Answers

Test will have Code snippet MCQ Question along with Statement to write code

Q1. Java memory management
Add your answer
Q2. Override equals methods
Ans. 
Overriding the equals method allows for custom comparison logic in Java classes.
• Override the equals method in a class to provide custom comparison logic.

• Ensure the overridden equals method follows the contract specified in the Java documentation.

• Consider overriding the hashCode method as well when overriding equals to maintain consistency.
Answered by AI
Add your answer
Q3. SQL Questions asked
Add your answer
Q4. Code snippet given asked to tell output
Add your answer
Q5. Design patterns questions asked
Add your answer

Q1. Multi threading Questions
Add your answer
Q2. Code snippet given asked to tell output of program
Add your answer

Q1. SQL Question Joins Index Nested Query etc
Add your answer
Q2. Docker Redis Questions
Add your answer

Q1. Standard HR Question & Salary negotiation
Add your answer

Java mcq and rest api mcq

Q1. Write the program to reverse a string
Ans. 
Program to reverse a string using array of characters
• Create an array of characters to store the input string

• Iterate through the input string and store each character in the array

• Iterate through the array in reverse order to construct the reversed string
Answered by AI
Add your answer
Q2. Basic questions on java and java 8 features
Add your answer
Q3. Method used in rest AP
Ans. 
REST APIs typically use HTTP methods like GET, POST, PUT, DELETE to perform CRUD operations on resources.
• GET - retrieve data from a server

• POST - create new data on a server

• PUT - update existing data on a server

• DELETE - remove data from a server
Answered by AI
Add your answer
Q4. Diff between put and post method
Ans. 
PUT is used to update or replace an existing resource, while POST is used to create a new resource.
• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

• POST is not idempotent, meaning multiple identical requests may have different effects.

• PUT is used when the client knows the specific URI of the resource it wants to update.

• POST is used when the server assigns a URI for th
Answered by AI
Add your answer

Java programs and sql queries

Q1. Oops concepts, sql questions
Add your answer

Java mcq and snippet