initial

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1709703039,
+        "narHash": "sha256-6hqgQ8OK6gsMu1VtcGKBxKQInRLHtzulDo9Z5jxHEFY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9df3e30ce24fd28c7b3e2de0d986769db5d6225d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,26 @@
+{
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  inputs.systems.url = "github:nix-systems/default";
+
+  outputs = { self, systems, nixpkgs }:
+    let
+      eachSystem = nixpkgs.lib.genAttrs (import systems);
+    in
+    {
+      devShells = eachSystem (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in {
+          default = nixpkgs.legacyPackages.${system}.mkShell {
+            buildInputs = [
+              pkgs.jdk21
+              (pkgs.maven.override {
+                jdk = pkgs.jdk21;
+              })
+              pkgs.expect
+              pkgs.zip
+            ];
+          };
+      });
+    };
+}

pom.xml

@@ -0,0 +1,64 @@
+<?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>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.release>21</maven.compiler.release>
+
+  </properties>
+
+  <groupId>eu.jstsmthrgk.proof-a-point</groupId>
+
+  <artifactId>proof-a-point</artifactId>
+
+  <version>1.0-SNAPSHOT</version>
+
+  <name>proof-a-point</name>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+          <configuration>
+            <compilerArgument>-Xlint:unchecked</compilerArgument>
+          </configuration>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-source-plugin</artifactId>
+          <version>3.3.0</version>
+          <configuration>
+            <finalName>UE${exerciseNumber}_${matriculationNumber}</finalName>
+          </configuration>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>

src/main/java/eu/jstsmthrgk/proofapoint/ProofAPoint.java

@@ -0,0 +1,11 @@
+package eu.jstsmthrgk.proofapoint;
+
+public class ProofAPoint {
+    public static void main(String[] args) {
+        String teststring = "𝐀";
+        char wrongOne = teststring.charAt(0);
+        int rightOne = teststring.codePointAt(0);
+        System.out.println(Character.isUpperCase(wrongOne));
+        System.out.println(Character.isUpperCase(rightOne));
+    }
+}