[BAEL-19088] - Move articles out of core-java-io part 3

2019-11-15 11:49:42 +02:00
parent 274aafe823
commit fe49f7c4f6
94 changed files with 114 additions and 1399 deletions
@@ -3,21 +3,14 @@
 This module contains articles about core Java input and output (IO)

 ### Relevant Articles: 
- [How to Read a Large File Efficiently with Java](http://www.baeldung.com/java-read-lines-large-file)
- [Java – Write to File](http://www.baeldung.com/java-write-to-file)
- [Java – Directory Size](http://www.baeldung.com/java-folder-size)
- [File Size in Java](http://www.baeldung.com/java-file-size)
- [How to Copy a File with Java](http://www.baeldung.com/java-copy-file)
- [Java – Append Data to a File](http://www.baeldung.com/java-append-to-file)
- [FileNotFoundException in Java](http://www.baeldung.com/java-filenotfound-exception)
- [How to Read a File in Java](http://www.baeldung.com/reading-file-in-java)
- [Zipping and Unzipping in Java](http://www.baeldung.com/java-compress-and-uncompress)
+- [How to Read a File in Java](https://www.baeldung.com/reading-file-in-java)
 - [Read a File into an ArrayList](https://www.baeldung.com/java-file-to-arraylist)
+- [Java – Directory Size](https://www.baeldung.com/java-folder-size)
+- [File Size in Java](https://www.baeldung.com/java-file-size)
+- [Zipping and Unzipping in Java](https://www.baeldung.com/java-compress-and-uncompress)
 - [Reading a CSV File into an Array](https://www.baeldung.com/java-csv-file-array)
- [How to Get the File Extension of a File in Java](http://www.baeldung.com/java-file-extension)
- [Getting a File’s Mime Type in Java](http://www.baeldung.com/java-file-mime-type)
- [Create a Directory in Java](https://www.baeldung.com/java-create-directory)
+- [How to Get the File Extension of a File in Java](https://www.baeldung.com/java-file-extension)
+- [Getting a File’s Mime Type in Java](https://www.baeldung.com/java-file-mime-type)
 - [How to Write to a CSV File in Java](https://www.baeldung.com/java-csv)
- [List Files in a Directory in Java](https://www.baeldung.com/java-list-directory-files)
 - [How to Avoid the Java FileNotFoundException When Loading Resources](https://www.baeldung.com/java-classpath-resource-cannot-be-opened)
 - [[More -->]](/core-java-modules/core-java-io-2)
@@ -140,12 +140,10 @@
    </profiles>

    <properties>
-
        <!-- util -->
        <opencsv.version>4.1</opencsv.version>
        <!-- testing -->
        <assertj.version>3.6.1</assertj.version>
-
        <!-- maven plugins -->
        <maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
        <hsqldb.version>2.4.0</hsqldb.version>
@@ -1,64 +0,0 @@
-package com.baeldung.files;
-
-import java.io.File;
-import java.io.IOException;
-import java.nio.file.DirectoryStream;
-import java.nio.file.FileVisitResult;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.SimpleFileVisitor;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.util.HashSet;
-import java.util.Set;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-public class ListFiles {
-    public static final int DEPTH = 1;
-
-    public Set<String> listFilesUsingJavaIO(String dir) {
-        return Stream.of(new File(dir).listFiles())
-            .filter(file -> !file.isDirectory())
-            .map(File::getName)
-            .collect(Collectors.toSet());
-    }
-
-    public Set<String> listFilesUsingFileWalk(String dir, int depth) throws IOException {
-        try (Stream<Path> stream = Files.walk(Paths.get(dir), depth)) {
-            return stream.filter(file -> !Files.isDirectory(file))
-                .map(Path::getFileName)
-                .map(Path::toString)
-                .collect(Collectors.toSet());
-        }
-    }
-
-    public Set<String> listFilesUsingFileWalkAndVisitor(String dir) throws IOException {
-        Set<String> fileList = new HashSet<>();
-        Files.walkFileTree(Paths.get(dir), new SimpleFileVisitor<Path>() {
-            @Override
-            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
-                if (!Files.isDirectory(file)) {
-                    fileList.add(file.getFileName()
-                        .toString());
-                }
-                return FileVisitResult.CONTINUE;
-            }
-        });
-        return fileList;
-    }
-
-    public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException {
-        Set<String> fileList = new HashSet<>();
-        try (DirectoryStream<Path> stream = Files.newDirectoryStream(Paths.get(dir))) {
-            for (Path path : stream) {
-                if (!Files.isDirectory(path)) {
-                    fileList.add(path.getFileName()
-                        .toString());
-                }
-            }
-        }
-        return fileList;
-    }
-
-}
@@ -1,48 +0,0 @@
-package com.baeldung.stream;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.channels.FileChannel;
-import java.nio.file.Files;
-
-import org.apache.commons.io.FileUtils;
-
-public class FileCopy {
-
-    public static void copyFileUsingStream(File source, File dest) throws IOException {
-        InputStream is = null;
-        OutputStream os = null;
-        is = new FileInputStream(source);
-        os = new FileOutputStream(dest);
-        byte[] buffer = new byte[1024];
-        int length;
-        while ((length = is.read(buffer)) > 0) {
-            os.write(buffer, 0, length);
-        }
-        is.close();
-        os.close();
-    }
-
-    public static void copyFileUsingChannel(File source, File dest) throws IOException {
-        FileChannel sourceChannel = null;
-        FileChannel destChannel = null;
-        sourceChannel = new FileInputStream(source).getChannel();
-        destChannel = new FileOutputStream(dest).getChannel();
-        destChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
-        sourceChannel.close();
-        destChannel.close();
-    }
-
-    public static void copyFileUsingApacheCommonsIO(File source, File dest) throws IOException {
-        FileUtils.copyFile(source, dest);
-    }
-
-    public static void copyFileUsingJavaFiles(File source, File dest) throws IOException {
-        Files.copy(source.toPath(), dest.toPath());
-    }
-
-}
@@ -1,16 +0,0 @@
-package com.baeldung.util;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.StringWriter;
-
-import org.apache.commons.io.IOUtils;
-
-public class StreamUtils {
-
-    public static String getStringFromInputStream(InputStream input) throws IOException {
-        StringWriter writer = new StringWriter();
-        IOUtils.copy(input, writer, "UTF-8");
-        return writer.toString();
-    }
-}
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
-        http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd" version="2.1">
-
-    <!-- JDO tutorial "unit" -->
-    <persistence-unit name="Tutorial">
-        <exclude-unlisted-classes/>
-		<properties>
-			<property name="javax.jdo.PersistenceManagerFactoryClass" value="org.datanucleus.api.jdo.JDOPersistenceManagerFactory"/>		
-		    <property name="javax.jdo.option.ConnectionURL" value="jdbc:h2:mem:mypersistence"/>
-		    <property name="javax.jdo.option.ConnectionDriverName" value="org.h2.Driver"/>
-		    <property name="javax.jdo.option.ConnectionUserName" value="sa"/>
-		    <property name="javax.jdo.option.ConnectionPassword" value=""/>
-		    <property name="datanucleus.schema.autoCreateAll" value="true"/>
-		</properties>
-    </persistence-unit>
-</persistence>
-
@@ -1 +0,0 @@
-com.baeldung.javac.SampleJavacPlugin
@@ -1,3 +0,0 @@
-UK
-US
-Germany
@@ -1,3 +0,0 @@
-1|IND|India
-2|MY|Malaysia
-3|AU|Australia
@@ -1,6 +0,0 @@
-dataSourceClassName=//TBD
-dataSource.user=//TBD
-dataSource.password=//TBD
-dataSource.databaseName=//TBD
-dataSource.portNumber=//TBD
-dataSource.serverName=//TBD
@@ -1,15 +0,0 @@
-var first = {
-    name: "Whiskey",
-    age: 5
-};
-
-var second = {
-    volume: 100
-};
-
-Object.bindProperties(first, second);
-
-print(first.volume);
-
-second.volume = 1000;
-print(first.volume);
@@ -1 +0,0 @@
-print(__FILE__, __LINE__, __DIR__);
@@ -1,19 +0,0 @@
-var math = {
-    increment: function (num) {
-        return ++num;
-    },
-
-    failFunc: function () {
-        try {
-            throw "BOOM";
-        } catch (e if typeof e === 'string') {
-            print("String thrown: " + e);
-        }
-        catch (e) {
-            print("this shouldn't happen!");
-        }
-    }
-};
-
-
-math;
@@ -1,11 +0,0 @@
-var demo = {
-    __noSuchProperty__: function (propName) {
-        print("Accessed non-existing property: " + propName);
-    },
-
-    __noSuchMethod__: function (methodName) {
-        print("Invoked non-existing method: " + methodName);
-    }
-};
-
-demo;
@@ -1 +0,0 @@
-function increment(num) ++num;
@@ -1,2 +0,0 @@
-print("   hello world".trimLeft());
-print("hello world     ".trimRight());
@@ -1,9 +0,0 @@
-function arrays(arr) {
-
-    var javaIntArray = Java.to(arr, "int[]");
-    print(javaIntArray[0]);
-    print(javaIntArray[1]);
-    print(javaIntArray[2]);
-}
-
-arrays([100, "1654", true]);
@@ -1,69 +0,0 @@
-package com.baeldung.copyfiles;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.StandardCopyOption;
-
-import org.apache.commons.io.FileUtils;
-import org.junit.Before;
-import org.junit.Test;
-import static org.assertj.core.api.Assertions.*;
-
-public class FileCopierIntegrationTest {
-    File original = new File("src/test/resources/original.txt");
-
-    @Before
-    public void init() throws IOException {
-        if (!original.exists())
-            Files.createFile(original.toPath());
-    }
-
-    @Test
-    public void givenIoAPI_whenCopied_thenCopyExistsWithSameContents() throws IOException {
-        File copied = new File("src/test/resources/copiedWithIo.txt");
-        try (InputStream in = new BufferedInputStream(new FileInputStream(original)); OutputStream out = new BufferedOutputStream(new FileOutputStream(copied))) {
-            byte[] buffer = new byte[1024];
-            int lengthRead;
-            while ((lengthRead = in.read(buffer)) > 0) {
-                out.write(buffer, 0, lengthRead);
-                out.flush();
-            }
-        }
-        assertThat(copied).exists();
-        assertThat(Files.readAllLines(original.toPath()).equals(Files.readAllLines(copied.toPath())));
-    }
-
-    @Test
-    public void givenCommonsIoAPI_whenCopied_thenCopyExistsWithSameContents() throws IOException {
-        File copied = new File("src/test/resources/copiedWithApacheCommons.txt");
-        FileUtils.copyFile(original, copied);
-        assertThat(copied).exists();
-        assertThat(Files.readAllLines(original.toPath()).equals(Files.readAllLines(copied.toPath())));
-    }
-
-    @Test
-    public void givenNIO2_whenCopied_thenCopyExistsWithSameContents() throws IOException {
-        Path copied = Paths.get("src/test/resources/copiedWithNio.txt");
-        Path originalPath = original.toPath();
-        Files.copy(originalPath, copied, StandardCopyOption.REPLACE_EXISTING);
-        assertThat(copied).exists();
-        assertThat(Files.readAllLines(originalPath).equals(Files.readAllLines(copied)));
-    }
-
-    @Test
-    public void givenGuava_whenCopied_thenCopyExistsWithSameContents() throws IOException {
-        File copied = new File("src/test/resources/copiedWithApacheCommons.txt");
-        com.google.common.io.Files.copy(original, copied);
-        assertThat(copied).exists();
-        assertThat(Files.readAllLines(original.toPath()).equals(Files.readAllLines(copied.toPath())));
-    }
-}
@@ -1,100 +0,0 @@
-package com.baeldung.directories;
-
-import org.junit.Before;
-import org.junit.Test;
-
-import java.io.File;
-
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-public class NewDirectoryUnitTest {
-
-    private static final File TEMP_DIRECTORY = new File(System.getProperty("java.io.tmpdir"));
-
-    @Before
-    public void beforeEach() {
-        File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
-        File nestedInNewDirectory = new File(newDirectory, "nested_directory");
-        File existingDirectory = new File(TEMP_DIRECTORY, "existing_directory");
-        File existingNestedDirectory = new File(existingDirectory, "existing_nested_directory");
-        File nestedInExistingDirectory = new File(existingDirectory, "nested_directory");
-
-        nestedInNewDirectory.delete();
-        newDirectory.delete();
-        nestedInExistingDirectory.delete();
-        existingDirectory.mkdir();
-        existingNestedDirectory.mkdir();
-    }
-
-    @Test
-    public void givenUnexistingDirectory_whenMkdir_thenTrue() {
-        File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
-        assertFalse(newDirectory.exists());
-
-        boolean directoryCreated = newDirectory.mkdir();
-
-        assertTrue(directoryCreated);
-    }
-
-    @Test
-    public void givenExistingDirectory_whenMkdir_thenFalse() {
-        File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
-        newDirectory.mkdir();
-        assertTrue(newDirectory.exists());
-
-        boolean directoryCreated = newDirectory.mkdir();
-
-        assertFalse(directoryCreated);
-    }
-
-    @Test
-    public void givenUnexistingNestedDirectories_whenMkdir_thenFalse() {
-        File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
-        File nestedDirectory = new File(newDirectory, "nested_directory");
-        assertFalse(newDirectory.exists());
-        assertFalse(nestedDirectory.exists());
-
-        boolean directoriesCreated = nestedDirectory.mkdir();
-
-        assertFalse(directoriesCreated);
-    }
-
-    @Test
-    public void givenUnexistingNestedDirectories_whenMkdirs_thenTrue() {
-        File newDirectory = new File(System.getProperty("java.io.tmpdir") + File.separator + "new_directory");
-        File nestedDirectory = new File(newDirectory, "nested_directory");
-        assertFalse(newDirectory.exists());
-        assertFalse(nestedDirectory.exists());
-
-        boolean directoriesCreated = nestedDirectory.mkdirs();
-
-        assertTrue(directoriesCreated);
-    }
-
-    @Test
-    public void givenExistingParentDirectories_whenMkdirs_thenTrue() {
-        File newDirectory = new File(TEMP_DIRECTORY, "existing_directory");
-        newDirectory.mkdir();
-        File nestedDirectory = new File(newDirectory, "nested_directory");
-        assertTrue(newDirectory.exists());
-        assertFalse(nestedDirectory.exists());
-
-        boolean directoriesCreated = nestedDirectory.mkdirs();
-
-        assertTrue(directoriesCreated);
-    }
-
-    @Test
-    public void givenExistingNestedDirectories_whenMkdirs_thenFalse() {
-        File existingDirectory = new File(TEMP_DIRECTORY, "existing_directory");
-        File existingNestedDirectory = new File(existingDirectory, "existing_nested_directory");
-        assertTrue(existingDirectory.exists());
-        assertTrue(existingNestedDirectory.exists());
-
-        boolean directoriesCreated = existingNestedDirectory.mkdirs();
-
-        assertFalse(directoriesCreated);
-    }
-
-}
@@ -1,96 +0,0 @@
-package com.baeldung.file;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.nio.channels.FileChannel;
-import java.nio.charset.Charset;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.nio.file.StandardOpenOption;
-
-import org.apache.commons.io.FileUtils;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-
-import com.baeldung.util.StreamUtils;
-
-public class FilesClearDataUnitTest {
-	
-    public static final String FILE_PATH = "src/test/resources/fileexample.txt";
-
-    @Before
-    @After
-    public void setup() throws IOException {
-        PrintWriter writer = new PrintWriter(FILE_PATH);
-        writer.print("This example shows how we can delete the file contents without deleting the file");
-        writer.close();
-    }
-    
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingPrintWritter_thenEmptyFile() throws IOException {
-        PrintWriter writer = new PrintWriter(FILE_PATH);
-        writer.print("");
-        writer.close();
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }    
-
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingPrintWritterWithougObject_thenEmptyFile() throws IOException {
-        new PrintWriter(FILE_PATH).close();
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }    
-       
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingFileWriter_thenEmptyFile() throws IOException {
-        new FileWriter(FILE_PATH, false).close();
- 
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }
-    
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingFileOutputStream_thenEmptyFile() throws IOException {
-        new FileOutputStream(FILE_PATH).close();
-
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }    
-
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingFileUtils_thenEmptyFile() throws IOException {
-        FileUtils.write(new File(FILE_PATH), "", Charset.defaultCharset());
-
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }    
-
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingNIOFiles_thenEmptyFile() throws IOException {
-        BufferedWriter writer = Files.newBufferedWriter(Paths.get(FILE_PATH));
-        writer.write("");
-        writer.flush();
- 
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }    
-    
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingNIOFileChannel_thenEmptyFile() throws IOException {
-        FileChannel.open(Paths.get(FILE_PATH), StandardOpenOption.WRITE).truncate(0).close();
- 
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }   
-    
-    @Test
-    public void givenExistingFile_whenDeleteContentUsingGuava_thenEmptyFile() throws IOException {
-        File file = new File(FILE_PATH);
-        byte[] empty = new byte[0];
-        com.google.common.io.Files.write(empty, file);
-        
-        assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
-    }    
-}
@@ -1,82 +0,0 @@
-package com.baeldung.file;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.nio.file.StandardOpenOption;
-
-import com.google.common.base.Charsets;
-import com.google.common.io.CharSink;
-import com.google.common.io.FileWriteMode;
-import org.apache.commons.io.FileUtils;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-
-import com.baeldung.util.StreamUtils;
-
-public class FilesManualTest {
-
-    public static final String fileName = "src/main/resources/countries.properties";
-
-    @Before
-    @After
-    public void setup() throws Exception {
-        PrintWriter writer = new PrintWriter(fileName);
-        writer.print("UK\r\n" + "US\r\n" + "Germany\r\n");
-        writer.close();
-    }
-
-    @Test
-    public void whenAppendToFileUsingGuava_thenCorrect() throws IOException {
-        File file = new File(fileName);
-        CharSink chs = com.google.common.io.Files.asCharSink(file, Charsets.UTF_8, FileWriteMode.APPEND);
-        chs.write("Spain\r\n");
-
-        assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
-    }
-
-    @Test
-    public void whenAppendToFileUsingFiles_thenCorrect() throws IOException {
-        Files.write(Paths.get(fileName), "Spain\r\n".getBytes(), StandardOpenOption.APPEND);
-
-        assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
-    }
-
-    @Test
-    public void whenAppendToFileUsingFileUtils_thenCorrect() throws IOException {
-        File file = new File(fileName);
-        FileUtils.writeStringToFile(file, "Spain\r\n", StandardCharsets.UTF_8, true);
-
-        assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
-    }
-
-    @Test
-    public void whenAppendToFileUsingFileOutputStream_thenCorrect() throws Exception {
-        FileOutputStream fos = new FileOutputStream(fileName, true);
-        fos.write("Spain\r\n".getBytes());
-        fos.close();
-
-        assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
-    }
-
-    @Test
-    public void whenAppendToFileUsingFileWriter_thenCorrect() throws IOException {
-        FileWriter fw = new FileWriter(fileName, true);
-        BufferedWriter bw = new BufferedWriter(fw);
-        bw.write("Spain");
-        bw.newLine();
-        bw.close();
-
-        assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
-    }
-}
@@ -1,46 +0,0 @@
-package com.baeldung.file;
-
-import static org.junit.Assert.assertEquals;
-
-import java.io.IOException;
-import java.util.HashSet;
-import java.util.Set;
-
-import org.junit.Test;
-
-import com.baeldung.files.ListFiles;
-
-public class ListFilesUnitTest {
-
-    private ListFiles listFiles = new ListFiles();
-    private String DIRECTORY = "src/test/resources/listFilesUnitTestFolder";
-    private static final int DEPTH = 1;
-    private Set<String> EXPECTED_FILE_LIST = new HashSet<String>() {
-        {
-            add("test.xml");
-            add("employee.json");
-            add("students.json");
-            add("country.txt");
-        }
-    };
-
-    @Test
-    public void givenDir_whenUsingJAVAIO_thenListAllFiles() throws IOException {
-        assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingJavaIO(DIRECTORY));
-    }
-
-    @Test
-    public void givenDir_whenWalkingTree_thenListAllFiles() throws IOException {
-        assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingFileWalk(DIRECTORY,DEPTH));
-    }
-
-    @Test
-    public void givenDir_whenWalkingTreeWithVisitor_thenListAllFiles() throws IOException {
-        assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingFileWalkAndVisitor(DIRECTORY));
-    }
-
-    @Test
-    public void givenDir_whenUsingDirectoryStream_thenListAllFiles() throws IOException {
-        assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingDirectoryStream(DIRECTORY));
-    }
-}
@@ -1,4 +1,4 @@
-package com.baeldung.filesystem.jndi.test;
+package com.baeldung.filesystem.jndi;

 import com.baeldung.filesystem.jndi.LookupFSJNDI;
 import org.junit.Test;
@@ -1,4 +1,4 @@
-package com.baeldung.java.mimetype;
+package com.baeldung.mimetype;

 import static org.junit.Assert.assertEquals;

@@ -1,4 +1,4 @@
-package org.baeldung.java.io;
+package com.baeldung.readfile;

 import org.junit.Test;
 import org.junit.Ignore;
@@ -1,4 +1,4 @@
-package com.baeldung.java8;
+package com.baeldung.size;

 import static org.junit.Assert.assertEquals;

@@ -18,7 +18,7 @@ public class JavaFileSizeUnitTest {
    @Before
    public void init() {
        final String separator = File.separator;
-        filePath = String.join(separator, new String[] { "src", "test", "resources", "testFolder", "sample_file_1.in" });
+        filePath = String.join(separator, new String[] { "src", "test", "resources", "size", "sample_file_1.in" });
    }

    @Test
@@ -1,4 +1,4 @@
-package com.baeldung.java8;
+package com.baeldung.size;

 import static org.junit.Assert.assertEquals;

@@ -25,7 +25,7 @@ public class JavaFolderSizeUnitTest {
    @Before
    public void init() {
        final String separator = File.separator;
-        path = String.format("src%stest%sresources%stestFolder", separator, separator, separator);
+        path = String.format("src%stest%sresources%ssize", separator, separator, separator);
    }

    @Test
--- a/Show More
+++ b/Show More