String, StringBuilder, StringBuffer
Java 8 - Join or append stream of strings
Can't find main class in Java? - Stack Overflow
Refactoring code to Java 8 Stream API - DEV Community
Stream API In Java 8 - JavaTechOnline
JAVA8: Fewer Lines of Code
Java Stream API Operations and Lambda Expression Tutorial • Crunchify
Java String Class API Guide (Updated Java 21) - The Documentation
The Java Stream API – Janeve.Me
Streams API New Features after Java 8 | by Saeed Zarinfam | ITNEXT
Java 8 StringJoiner Example - How to join multiple Strings with delimiter in Java? | Java67
String in Java | How to Declare String in Java With Examples
Stream API in Java 8 | Pixelstech.net
Java String length() Method Examples
Java 8 - The String Class
Java 8 Optional Class - GeeksforGeeks
Java 8 Features with Examples | DigitalOcean
Java 8 Stream Tutorial - GeeksforGeeks
flatMap() Method in Java 8 - Javatpoint
Java Convert String to Double examples
Solved String methods: Explore the String class of Java 8 | Chegg.com
Part 2: Processing Data with Java SE 8 Streams
Modern Programming in Java 8 - Lambdas, Streams and Date Time API | PPT
Java 8 - The String Class
