Programmers.io Php and Laravel Developer Interview Questions and Answers

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

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

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