{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.sakatakoichi.com%2Fentry%2F20081030%2F1225330936\" title=\"Scala\u306e\u300c::\u300d\u3068\u300c:::\u300d - Fight the Future\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/jyukutyo/","description":"package sample object Sample { def main(args: Array[String]): Unit = { val a = List(1,2,3) val b = List(4,5,6) println(a :: b) println(a ::: b) } } List(List(1, 2, 3), 4, 5, 6) List(1, 2, 3, 4, 5, 6)Java\u3067\u3044\u3046List#add()\u3068List#addAll()\u3060\u306d\u3002","author_name":"jyukutyo","categories":["programming"],"title":"Scala\u306e\u300c::\u300d\u3068\u300c:::\u300d","type":"rich","url":"https://www.sakatakoichi.com/entry/20081030/1225330936","width":"100%","provider_url":"https://hatena.blog","blog_title":"Fight the Future","blog_url":"https://www.sakatakoichi.com/","image_url":null,"published":"2008-10-31 02:42:16","height":"190","version":"1.0"}