”;
Provides method to manipulates files like moving, opening, checking existence, reading of file etc. These methods use File Object.
Class Declaration
Following is the declaration for org.apache.commons.io.FileUtils Class −
public class FileUtils extends Object
Features of FileUtils
The features of FileUtils are stated below −
- Methods to write to a file.
- Methods to read from a file.
- Methods to make a directory including parent directories.
- Methods to copy files and directories.
- Methods to delete files and directories.
- Methods to convert to and from a URL.
- Methods to list files and directories by filter and extension.
- Methods to compare file content.
- Methods to file last changed date.
- Methods to calculating a checksum.
Example of FileUtils Class
Here is the input file we need to parse −
Welcome to TutorialsPoint. Simply Easy Learning.
IOTester.java
import java.io.File; import java.io.IOException; import java.nio.charset.Charset; import org.apache.commons.io.FileUtils; public class IOTester { public static void main(String[] args) { try { //Using FileUtils usingFileUtils(); } catch(IOException e) { System.out.println(e.getMessage()); } } public static void usingFileUtils() throws IOException { //get the file object File file = FileUtils.getFile("input.txt"); //get the temp directory File tmpDir = FileUtils.getTempDirectory(); System.out.println(tmpDir.getName()); //copy file to temp directory FileUtils.copyFileToDirectory(file, tmpDir); //create a new file File newTempFile = FileUtils.getFile(tmpDir, file.getName()); //get the content String data = FileUtils.readFileToString(newTempFile, Charset.defaultCharset()); //print the content System.out.println(data); } }
Output
It will print the following result.
Temp Welcome to TutorialsPoint. Simply Easy Learning.
Advertisements
”;