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ディレクトリ削除

Last updated at Posted at 2024-02-14

import java.io.File;

public class DirectoryDeleter {
public static void main(String[] args) {
File parentDirectory = new File("ParentDirectory"); // パスを指定してください

    if (parentDirectory.exists()) {
        deleteDirectory(parentDirectory);
        System.out.println("すべてのサブディレクトリとファイルを削除しました");
    } else {
        System.out.println("指定された親ディレクトリは存在しません");
    }
}

public static void deleteDirectory(File directory) {
    File[] files = directory.listFiles();
    if (files != null) {
        for (File file : files) {
            if (file.isDirectory()) {
                deleteDirectory(file); // サブディレクトリを再帰的に削除
            } else {
                file.delete(); // ファイルを削除
            }
        }
    }
    directory.delete(); // ディレクトリを削除
}

}

import java.io.File;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class FolderCleanup {
public static void main(String[] args) {
String parentDirectoryPath = "親ディレクトリのパスを指定";

    // 今日の日付を取得
    Date today = new Date();
    DateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
    String todayString = dateFormat.format(today);

    // フォルダを取得して処理
    File parentDirectory = new File(parentDirectoryPath);
    if (parentDirectory.exists() && parentDirectory.isDirectory()) {
        File[] subDirectories = parentDirectory.listFiles();
        if (subDirectories != null) {
            for (File subDirectory : subDirectories) {
                // フォルダ名の日付部分を取得
                String folderName = subDirectory.getName();
                String folderDatePart = folderName.substring(0, 8);

                // 日付を比較して削除
                if (folderDatePart.compareTo(todayString) < 0) {
                    deleteDirectory(subDirectory);
                }
            }
        }
    }
}

// フォルダとその中身を再帰的に削除するメソッド
private static void deleteDirectory(File directory) {
    if (directory.isDirectory()) {
        File[] files = directory.listFiles();
        if (files != null) {
            for (File file : files) {
                deleteDirectory(file);
            }
        }
    }
    directory.delete();
}

}

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