Newgen Software Technologies Software Engineer Interview Questions, Process, and Tips

To compile all Java files inside a folder using Cmd, navigate to the folder and run 'javac *.java'

• Open Command Prompt and navigate to the folder containing the Java files

• Run the command 'javac *.java' to compile all Java files in the folder

• Check for any errors or warnings in the output

Hashmap is a data structure that stores key-value pairs. Concurrent Hashmap is a thread-safe version of Hashmap.

• Hashmap uses hashing to store and retrieve elements based on their keys.

• Concurrent Hashmap allows multiple threads to access and modify the map concurrently.

• Hashmap has a load factor that determines when the map needs to be resized.

• Concurrent Hashmap uses a technique called lock striping to allow concurrent a...read more

Concatenate two linked lists alternatively

• Create a new linked list

• Traverse both linked lists simultaneously

• Alternate between adding nodes from each list to the new list

• If one list is longer than the other, add the remaining nodes to the end of the new list

Joins are used in SQL to combine data from two or more tables based on a related column.

• Types of joins include inner join, left join, right join, and full outer join.

• Inner join returns only the matching rows from both tables.

• Left join returns all rows from the left table and matching rows from the right table.

• Right join returns all rows from the right table and matching rows from the left table.

• Full outer join returns ...read more