Android Studio:将文件写入另一个目录

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class FileCopyExample {
    public static void main(String[] args) {
        String sourceFilePath = "path/to/source/file.txt";
        String destinationFilePath = "path/to/destination/file.txt";

        try {
            File sourceFile = new File(sourceFilePath);
            File destinationFile = new File(destinationFilePath);

            FileInputStream fileInputStream = new FileInputStream(sourceFile);
            FileOutputStream fileOutputStream = new FileOutputStream(destinationFile);

            byte[] buffer = new byte[1024];
            int length;
            while ((length = fileInputStream.read(buffer)) > 0) {
                fileOutputStream.write(buffer, 0, length);
            }

            fileInputStream.close();
            fileOutputStream.close();

            System.out.println("文件复制成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}