{"provider_name":"Hatena Blog","author_name":"wata_d","url":"https://www.little-cuckoo.jp/entry/20100916/1284625639","blog_title":"\u9591\u53e4\u9ce5","author_url":"https://blog.hatena.ne.jp/wata_d/","provider_url":"https://hatena.blog","description":"Java\u3092\u77e5\u3089\u306a\u3044\u306e\u3067\u3082\u3063\u3068\u826f\u3044\u65b9\u6cd5\u304c\u3042\u308b\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001File.listFiles\u30e1\u30bd\u30c3\u30c9\u3067\u6307\u5b9a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u4e2d\u306b\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u4e00\u89a7\u304c\u53d6\u5f97\u3067\u304d\u308b\u305d\u3046\u3067\u3059\u3002\u6307\u5b9a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u4e2d\u8eab\u3092\u6f01\u308b\u3060\u3051\u306a\u3089\u4e00\u884c\u3067\u66f8\u3051\u307e\u3057\u305f\u3002 import java.io._ def ls1(dir: String) = { new File(dir).listFiles.foreach(println) } \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u4ee5\u4e0b\u3082\u898b\u3066\u3044\u304f\u306a\u3089: def ls2(dir: String) : Unit = { new File(dir).listFiles.map { case f if f.isDirect\u2026","height":"190","version":"1.0","blog_url":"https://www.little-cuckoo.jp/","published":"2010-09-16 17:27:19","categories":["Scala","memo"],"width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.little-cuckoo.jp%2Fentry%2F20100916%2F1284625639\" title=\"Scala\u3067ls(\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u5f97\u3059\u308b) - \u9591\u53e4\u9ce5\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","image_url":null,"title":"Scala\u3067ls(\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u5f97\u3059\u308b)"}