Use the new File class and Path class in Java 13 to work with files and directories

Use the new File class and Path class in Java 13 to handle files and directories

With the continuous development of Java technology, Java 13 has introduced some new features and improvements, one of which is an important improvement It's in the area of ​​file and directory processing. Java 13 introduces new File class and Path class to handle file and directory operations more conveniently. This article will introduce how to use these new features for file and directory processing, and provide some code examples.

First, let’s take a look at the new File class. Before Java 13, we used java.io.File class to handle files and directories, but in Java 13, this class has been deprecated. Instead it is the java.nio.file.File class. The new File class provides more methods and functions, making the processing of files and directories more convenient.

Let's see how to use the new File class to create a new file and directory. First, we need to introduce the java.nio.file package, and then use the createFile() and createDirectory() methods of the Files tool class to create files and directories.

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.io.IOException;

public class FileExample {
    public static void main(String[] args) {
        try {
            // 创建一个文件
            Path filePath = Paths.get("test.txt");
            Files.createFile(filePath);
            
            // 创建一个目录
            Path dirPath = Paths.get("testDir");
            Files.createDirectory(dirPath);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

The above code creates a file named test.txt and a directory named testDir. Using the new File class, we can create files and directories more conveniently.

Next, let’s take a look at how to use the new Path class to operate files and directories. The Path class is a very important class in Java 13, which represents a file system path. We can use the methods of the Path class to operate files and directories, such as creating files, deleting files, moving files, etc.

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.io.IOException;

public class PathExample {
    public static void main(String[] args) {
        try {
            // 创建一个文件
            Path filePath = Paths.get("test.txt");
            Files.createFile(filePath);
            
            // 移动文件
            Path newFilePath = filePath.resolveSibling("newTest.txt");
            Files.move(filePath, newFilePath);
            
            // 删除文件
            Files.delete(newFilePath);
            
            // 创建一个目录
            Path dirPath = Paths.get("testDir");
            Files.createDirectory(dirPath);
            
            // 删除目录
            Files.delete(dirPath);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

The above code demonstrates how to use the Path class to operate files and directories. We first created a file named test.txt, then used the resolveSibling() method to move it to the same directory and renamed it to newTest.txt, and then used the delete() method to delete the file. Then we created a directory called testDir and deleted this directory using the delete() method.

The Files tool class in the above code is a utility class in the java.nio.file package. It provides many convenient methods to handle file and directory operations. We can create, move, delete files and directories by calling these methods.

To summarize, the new File class and Path class in Java 13 provide us with more convenient file and directory operation methods. We can use the new File class to create files and directories, and use the Path class and Files tool class to operate files and directories. These new features make Java more powerful and flexible in handling files and directories.

I hope this article can help you better understand and use the new file and directory processing features in Java 13. If you have any questions or suggestions, please leave a message for discussion.

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