EN
Java - delete directory
0 points
In this article, we would like to show you how to delete a directory in Java.
Below we describe several ways on how to delete a directory:
- Recursively,
Files.walkFileTree(Java 7)
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/C/2
└── directory/3
│4
├── subdirectory1/5
│6
└── subdirectory2/7
│8
└── file.txtIn this example, we use recursion to delete a non-empty directory, because to delete the directory we need to clear it first.
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import java.io.File;2
import java.io.IOException;3
4
5
public class Example {6
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public static void main(String[] args) throws IOException {8
File file = new File("C:\\directory\\subdirectory2");9
10
deleteDirectoryLegacyIO(file);11
}12
13
public static void deleteDirectoryLegacyIO(File file) {14
File[] listFiles = file.listFiles();15
if (listFiles != null) {16
for (File temp : listFiles) {17
//recursive delete18
System.out.println("Opened: " + temp);19
deleteDirectoryLegacyIO(temp);20
}21
}22
23
if (file.delete()) {24
System.out.printf("Deleted: %s%n", file);25
} else {26
System.err.printf("Unable to delete: %s%n", file);27
}28
29
}30
}Output:
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Opened: C:\directory\subdirectory2\file.txt2
Deleted: C:\directory\subdirectory2\file.txt3
Deleted: C:\directory\subdirectory2In this example, we use Files.walkFileTree with SimpleFileVisitor to delete a directory.
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package tmpOperations;2
3
import java.io.IOException;4
import java.nio.file.*;5
import java.nio.file.attribute.BasicFileAttributes;6
7
8
public class Example {9
10
public static void main(String[] args) throws IOException {11
Path path = Paths.get("C:\\directory\\subdirectory2");12
13
Files.walkFileTree(path,14
new SimpleFileVisitor<>() {15
16
// delete directories17
18
public FileVisitResult postVisitDirectory(Path directory, IOException exc)19
throws IOException {20
Files.delete(directory);21
System.out.printf("Deleted directory: %s%n", directory);22
return FileVisitResult.CONTINUE;23
}24
25
// delete files26
27
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)28
throws IOException {29
Files.delete(file);30
System.out.printf("Deleted file: %s%n", file);31
return FileVisitResult.CONTINUE;32
}33
}34
);35
}36
}Output:
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Deleted file: C:\directory\subdirectory2\file.txt2
Deleted directory: C:\directory\subdirectory2