feat: java base

packages/java/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>io.github.gabriel_logan</groupId>
+    <artifactId>untitled</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

packages/java/src/main/java/io/github/gabriel_logan/Main.java

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+package io.github.gabriel_logan;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+		public static void main(String[] args) {
+				//TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+				// to see how IntelliJ IDEA suggests fixing it.
+				System.out.printf("Hello and welcome!");
+
+				for (int i = 1; i <= 5; i++) {
+						//TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+						// for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+						System.out.println("i = " + i);
+				}
+		}
+}