{"categories":["Java"],"published":"2011-09-27 23:25:29","title":"Properties#stringPropertyNames() \u306e\u3042\u308a\u304c\u305f\u307f ","author_url":"https://blog.hatena.ne.jp/tt4cs/","width":"100%","version":"1.0","url":"https://tt4cs.hatenadiary.org/entry/20110927/1317133529","provider_name":"Hatena Blog","image_url":null,"blog_url":"https://tt4cs.hatenadiary.org/","author_name":"tt4cs","type":"rich","height":"190","blog_title":"\u81ea\u660e\u3067\u306a\u3044\u65e5\u8a18","provider_url":"https://hatena.blog","description":"\u524d\u56de\u306e \u65e5\u8a18 (Sep 24, 2011) \u3067\u3001Properties \u30af\u30e9\u30b9\u306e propertyNames() \u30e1\u30bd\u30c3\u30c9\u306f ClassCastException \u3092\u30b9\u30ed\u30fc\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u60a9\u307e\u3057\u3044\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u3053\u3068\u3092\u66f8\u304d\u307e\u3057\u305f\u3002 \u304b\u3068\u8a00\u3063\u3066\u3001Java SE 6 \u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u8a31\u3055\u308c\u3066\u3044\u306a\u3044\u958b\u767a\u73fe\u5834\u3067\u306f stringPropertyNames() \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u305d\u3046\u306a\u308b\u3068\u3001\u6b21\u5584\u306e\u7b56\u3068\u3057\u3066 Hashtable \u30af\u30e9\u30b9\u304b\u3089\u7d99\u627f\u3055\u308c\u305f keySet() \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3044\u305f\u304f\u306a\u308b\u5c40\u9762\u3082\u3042\u308b\u3060\u308d\u3046\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u3053\u3068\u3082\u66f8\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001keySet() \u30e1\u30bd\u30c3\u30c9\u3082\u542b\u3081\u3001Hasht\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftt4cs.hatenadiary.org%2Fentry%2F20110927%2F1317133529\" title=\"Properties#stringPropertyNames() \u306e\u3042\u308a\u304c\u305f\u307f  - \u81ea\u660e\u3067\u306a\u3044\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}