Day 1/90: Java setup & environment in Java

Day 1/90: Java setup & environment in Java 90 Day Java Challenge: Zero to Production Jdk 21+ public class Example { public static void main ( String [] args ) { // JDK 21+ System . out . println ( "Topic: JDK 21+" ); var data = new java . util . HashMap < String , Object >(); data . put ( "topic" , "JDK 21+" ); data . put ( "language" , "Java" ); data . forEach (( k , v ) -> System . out . printf ( " %s: %s%n" , k , v )); } } Jdk 21+ is a core concept in Java that you will encounter in virtually every real-world project. Intellij Idea / Vs Code public class Example { public static void main ( String [] args ) { // IntelliJ IDEA / VS Code System . out . println ( "Topic: IntelliJ IDEA / VS Code" ); var data = new java . util . HashMap < String , Object >(); data . put ( "topic" , "IntelliJ IDEA / VS Code" ); data . put ( "language" , "Java" ); data . forEach (( k , v ) -> System . out . printf ( " %s: %s%n" , k , v )); } } Intellij idea / vs code is a core concept in Java that you will