Läuft.

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

pom.xml

@@ -71,6 +71,14 @@
           <mainClass>net.altimate.app.App</mainClass>
         </configuration>
       </plugin>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <configuration>
+                <source>21</source>
+                <target>21</target>
+            </configuration>
+        </plugin>
     </plugins>
 
 

src/main/java/net/altimate/app/App.java

@@ -2,6 +2,7 @@ package net.altimate.app;
 import java.lang.Object;
 import java.lang.Class;
 import java.time.format.DateTimeFormatter;
+import java.util.Arrays;
 
 import javafx.application.Application;
 import javafx.collections.FXCollections;
@@ -20,6 +21,8 @@ import javafx.scene.layout.GridPane;
 import javafx.scene.layout.VBox;
 import javafx.stage.Stage;
 
+import static java.util.stream.Collectors.toList;
+
 
 public class App extends Application {
 
@@ -268,17 +271,54 @@ public class App extends Application {
             @Override
             public void handle(ActionEvent e) {
 
-                ListFilesInDir.listFilesInDir(filesDirectory);
+
+                //System.out.println(Arrays.stream(ListFilesInDir.listFilesInDir(filesDirectory)).toList());
+                int filesDirTmpLength = ListFilesInDir.listFilesInDir(filesDirectory).length;
+                String filesDirTmp[] = new String[filesDirTmpLength];
+                filesDirTmp = ListFilesInDir.listFilesInDir(filesDirectory);
+                String filesDir[][] = new String[filesDirTmpLength][filesDirTmpLength];
+
+
+                for ( int i=0;  i < filesDirTmpLength; ++i) {
+                    filesDir[i][0] = filesDirTmp[i];
+                    String readTheFile = filesDirectory + "/" + filesDirTmp[i];
+                    filesDir[i][1] = ReadFile.readFile(filesDirectory + "/" + filesDirTmp[i]);
+                    //filesDir[0][i] = ReadFile.readFile(filesDirTmp[i]);
+                    //ReadFile.readFile(filesDirTmp[i]);
+
+
+                    System.out.println("da: " + filesDir[i][0]);
+                    System.out.println("da tmp: " + filesDir[i][1]);
+                    System.out.println(i);
+                    //System.out.println("inhalt file: " + filesDir[i][i]);
+
+                }
+                //System.out.println(ReadFile.readFile("/tmp/files/123.smart"));
+                //ReadFile.readFile("/tmp/files/123.smart");
+
+                //System.out.println("dada: " + filesDirTmp[0]);
+
+                //filesDirTmp = Arrays.copyOf(ListFilesInDir.listFilesInDir(filesDirectory), ListFilesInDir.listFilesInDir(filesDirectory).length);
+                        //new String[ListFilesInDir.listFilesInDir(filesDirectory).length][ListFilesInDir.listFilesInDir(filesDirectory).length];
+
+
+                //filesDir[][] = ListFilesInDir.listFilesInDir(filesDirectory);
+                //System.out.println(filesDir.length);
+
+
+
+
+
                 ListView<String> list1 = new ListView<String>();
                 ObservableList<String> items = FXCollections.observableArrayList (ListFilesInDir.listFilesInDir(filesDirectory));
                 list1.setItems(items);
                 GridPane.setConstraints(list1, 0, 1);
                 grid.getChildren().add(list1);
 
-                String fileName = "/tmp/files/1735938766.smart";
+                //String fileName = "/tmp/files/1735938766.smart";
                 //ReadFile.readFile(fileName);
 
-                System.out.println(ReadFile.readFile(fileName));
+                //System.out.println(ReadFile.readFile(fileName));
 
                 }
         });

src/main/java/net/altimate/app/ListFilesInDir.java

@@ -1,29 +1,57 @@
 package net.altimate.app;
 import java.io.File;
 
+import static java.util.regex.Pattern.matches;
+
 
 public class ListFilesInDir {
-    public static String[] listFilesInDir ( String directory ) {
+    public static String[] listFilesInDir(String directory) {
 
         File filesInDir = null;
         File[] paths;
+        String match = "^.*.smart$";
+
+        int count=0;
+        int filterArrayLength=0;
 
         try {
             filesInDir = new File(directory);
-            paths = filesInDir.listFiles();
+            //paths = filesInDir.listFiles();
 
 
-            for(File path:paths) {
-                System.out.println(path.getName());
-            }
+                //for(File path:paths) {
+                //    System.out.println(path.getName().matches(".smart"));
+                //    System.out.println("ok");
+                //
 
 
-
-
-        }   catch(Exception efile) {
+        }   catch(Exception efile){
 
                 efile.printStackTrace();
             }
-        return filesInDir.list();
+
+            paths = filesInDir.listFiles();
+
+            for (File path:paths) {
+                if (path.getName().matches(match)) {
+                    filterArrayLength++;
+                }
+            }
+
+            String[] filter = new String[filterArrayLength];
+
+            for (File path:paths) {
+                if (path.getName().matches(match)) {
+                    filter[count] = path.getName();
+                    count++;
+                }
+            }
+
+
+                  //return filesInDir.list();
+        System.out.println("ListFilesInDir wurde aufgerufen");
+        return filter;
+
     }
 }
+

src/main/java/net/altimate/app/ReadFile.java

@@ -10,11 +10,13 @@ public class ReadFile {
         try {
             String s = Files.readString(Path.of(fileName));
             String s1 = s;
-            System.out.println(s1);
+            //System.out.println("Es wurde versucht ein file zu lesen");
+            //System.out.println(s1);
             return s1;
         } catch (IOException e) {
             e.printStackTrace();
         }
+        System.out.println("ein fehler im einlesen?");
         String o = null;
         return o;
     }

target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -0,0 +1,8 @@
+net/altimate/app/ReadFile.class
+net/altimate/app/App$2.class
+net/altimate/app/App$3.class
+net/altimate/app/App.class
+net/altimate/app/ListFilesInDir.class
+net/altimate/app/App$4.class
+net/altimate/app/App$1.class
+net/altimate/app/CreateFile.class

target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -1 +1,4 @@
 /home/mic/DM/workspaces/tmp/superclass-app/src/main/java/net/altimate/app/App.java
+/home/mic/DM/workspaces/tmp/superclass-app/src/main/java/net/altimate/app/CreateFile.java
+/home/mic/DM/workspaces/tmp/superclass-app/src/main/java/net/altimate/app/ListFilesInDir.java
+/home/mic/DM/workspaces/tmp/superclass-app/src/main/java/net/altimate/app/ReadFile.java