{"id":5316,"date":"2026-04-08T03:00:25","date_gmt":"2026-04-07T18:00:25","guid":{"rendered":"https:\/\/j-wire.info\/?p=5316"},"modified":"2026-04-08T03:00:25","modified_gmt":"2026-04-07T18:00:25","slug":"how-java-actually-works-a-simple-jargon-free-explanation-anyone-can-understand-2","status":"publish","type":"post","link":"https:\/\/j-wire.info\/?p=5316","title":{"rendered":"How Java Actually Works: A Simple, Jargon-Free Explanation Anyone Can Understand"},"content":{"rendered":"

\"Java\u306e\u4ed5\u7d44\u307f\u3092\u7c21\u5358\u306b\u7406\u89e3\u3057\u3088\u3046\"<\/p>\n

Java\u306e\u4ed5\u7d44\u307f\u3092\u7c21\u5358\u306b\u7406\u89e3\u3057\u3088\u3046<\/h2>\n

\u300cJava\u3063\u3066\u540d\u524d\u306f\u805e\u3044\u305f\u3053\u3068\u3042\u308b\u3051\u3069\u3001\u5b9f\u969b\u3069\u3046\u3084\u3063\u3066\u52d5\u3044\u3066\u3044\u308b\u306e\uff1f\u300d\u305d\u3093\u306a\u7591\u554f\u3092\u6301\u3061\u306a\u304c\u3089\u3001\u96e3\u3057\u3059\u304e\u308b\u89e3\u8aac\u30da\u30fc\u30b8\u306b\u4f55\u5ea6\u3082\u3076\u3064\u304b\u3063\u3066\u8ae6\u3081\u305f\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5c02\u9580\u7528\u8a9e\u3092\u4e00\u5207\u4f7f\u308f\u305a\u306bJava\u306e\u4ed5\u7d44\u307f\u3092\u30bc\u30ed\u304b\u3089\u4e01\u5be7\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u521d\u5fc3\u8005\u304c\u3076\u3064\u304b\u308bJava\u306e\u58c1\u3068\u306f\uff1f<\/h2>\n

Java\u306b\u95a2\u3059\u308b\u60c5\u5831\u306f\u30cd\u30c3\u30c8\u4e0a\u306b\u6ea2\u308c\u3066\u3044\u308b\u304c\u3001\u305d\u306e\u591a\u304f\u306f\u3059\u3067\u306b\u77e5\u8b58\u306e\u3042\u308b\u4eba\u5411\u3051\u306b\u66f8\u304b\u308c\u3066\u304a\u308a\u3001\u521d\u5fc3\u8005\u304c\u8aad\u3080\u3068\u4f59\u8a08\u306b\u6df7\u4e71\u3059\u308b\u3002\u300cJVM\u300d\u300c\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u300d\u300c\u30b3\u30f3\u30d1\u30a4\u30eb\u300d\u3068\u3044\u3063\u305f\u7528\u8a9e\u304c\u8aac\u660e\u306a\u3057\u306b\u767b\u5834\u3057\u3001\u300c\u306a\u3093\u3068\u306a\u304f\u308f\u304b\u3063\u305f\u6c17\u304c\u3059\u308b\u3051\u3069\u5b9f\u306f\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u300d\u3068\u3044\u3046\u72b6\u614b\u304c\u7d9a\u304f\u3002<\/p>\n

Java\u306e\u57fa\u672c\u306e\u6d41\u308c\u3092\u6599\u7406\u3067\u4f8b\u3048\u308b<\/h2>\n

Java\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u307e\u305a\u300c\u30ec\u30b7\u30d4\u300d\u306b\u3042\u305f\u308b\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u3053\u308c\u3092\u300c\u6599\u7406\u306e\u5de5\u7a0b\u300d\u306b\u76f8\u5f53\u3059\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u901a\u3058\u3066\u300c\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u300d\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001JVM\u3068\u3044\u3046\u300c\u7ffb\u8a33\u6a5f\u300d\u304c\u305d\u306e\u5de5\u7a0b\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u52d5\u4f5c\u3059\u308b\u306e\u3067\u3059\u3002<\/p>\n

\u3069\u3053\u3067\u3082\u52d5\u304fJava\u306e\u79d8\u5bc6<\/h2>\n

Java\u306e\u300cWrite Once, Run Anywhere\u300d\u306f\u3001JVM\uff08Java\u4eee\u60f3\u30de\u30b7\u30f3\uff09\u306e\u304a\u304b\u3052\u3067\u3059\u3002\u3053\u306eJVM\u304c\u7570\u306a\u308bOS\u4e0a\u3067\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u540c\u3058\u3088\u3046\u306b\u5b9f\u884c\u3059\u308b\u306e\u3067\u3001Windows\u3067\u3082Mac\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u52d5\u304f\u306e\u3067\u3059\u3002\u307e\u308b\u3067\u3069\u3053\u3067\u3082\u901a\u3058\u308b\u4e07\u80fd\u306e\u901a\u8a33\u306e\u3088\u3046\u3067\u3059\u306d\u3002<\/p>\n

Java\u306e\u5b9f\u969b\u306e\u6d3b\u7528\u4f8b\u3092\u77e5\u308d\u3046<\/h2>\n

Java\u306f\u9280\u884c\u30b7\u30b9\u30c6\u30e0\u3001Android\u30a2\u30d7\u30ea\u3001\u4f01\u696d\u306e\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3067\u6d3b\u8e8d\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3092\u77e5\u308b\u3068\u300c\u96e3\u3057\u305d\u3046\u300d\u3068\u3044\u3046\u30a4\u30e1\u30fc\u30b8\u304c\u548c\u3089\u304e\u3001\u81ea\u5206\u306e\u8eab\u8fd1\u306a\u751f\u6d3b\u3068\u3082\u95a2\u308f\u3063\u3066\u3044\u308b\u3068\u611f\u3058\u3001Java\u3092\u5b66\u3076\u610f\u6b32\u3082\u308f\u3044\u3066\u304f\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n

Java\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8aa4\u89e3<\/h2>\n

\u300cJava\u3068JavaScript\u306f\u540c\u3058\u3082\u306e\uff1f\u300d\u3084\u300cJava\u306f\u53e4\u304f\u3066\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\uff1f\u300d\u306a\u3069\u306e\u8aa4\u89e3\u304c\u591a\u3044\u3067\u3059\u304c\u3001Java\u306f\u4eca\u3067\u3082\u591a\u304f\u306e\u5834\u3067\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u6b74\u53f2\u306f\u53e4\u3044\u3067\u3059\u304c\u3001\u5e38\u306b\u9032\u5316\u3057\u3066\u304a\u308a\u3001\u521d\u5fc3\u8005\u3067\u3082\u5b66\u3073\u3084\u3059\u3044\u70b9\u304c\u9b45\u529b\u3067\u3059\u3002<\/p>\n

\u6b21\u306e\u4e00\u6b69\u3092\u8e0f\u307f\u51fa\u305d\u3046\uff01<\/h2>\n

\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3093\u3067Java\u306b\u8208\u5473\u3092\u6301\u3063\u305f\u3089\u3001\u6b21\u306f\u7121\u6599\u306eJava\u5165\u9580\u8b1b\u5ea7\u3092\u8a66\u3057\u3066\u307f\u308b\u306e\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\uff1f\u307e\u305f\u3001\u95a2\u9023\u8a18\u4e8b\u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u306e\u59cb\u3081\u65b9\u300d\u3092\u8aad\u3093\u3067\u3001\u5b66\u7fd2\u3092\u7d9a\u3051\u3066\u3044\u304f\u65b9\u6cd5\u3092\u3055\u3089\u306b\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

Java\u306e\u4ed5\u7d44\u307f\u306e\u8981\u70b9\u3092\u304a\u3055\u3089\u3044<\/h2>\n

1. Java\u306f\u30ec\u30b7\u30d4\uff1d\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304b\u3089\u59cb\u3081\u308b 2. JVM\u304c\u7570\u306a\u308bOS\u4e0a\u3067\u3082\u540c\u3058\u52d5\u4f5c\u3092\u53ef\u80fd\u306b\u3059\u308b 3. \u9280\u884c\u30b7\u30b9\u30c6\u30e0\u3084Android\u30a2\u30d7\u30ea\u306a\u3069\u3067\u6d3b\u7528 4. Java\u306f\u53e4\u304f\u306a\u3044\u3001\u3080\u3057\u308d\u4eca\u3067\u3082\u9032\u5316\u4e2d 5. \u521d\u5fc3\u8005\u306b\u3082\u5b66\u3073\u3084\u3059\u3044\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e<\/p>\n","protected":false},"excerpt":{"rendered":"Java\u306e\u4ed5\u7d44\u307f\u3092\u7c21\u5358\u306b\u7406\u89e3\u3057\u3088\u3046 \u300cJava\u3063\u3066\u540d\u524d\u306f\u805e\u3044\u305f\u3053\u3068\u3042\u308b\u3051\u3069\u3001\u5b9f\u969b\u3069\u3046\u3084\u3063\u3066\u52d5\u3044\u3066\u3044\u308b\u306e\uff1f\u300d\u305d\u3093\u306a\u7591\u554f\u3092\u6301\u3061\u306a\u304c\u3089\u3001\u96e3\u3057\u3059\u304e\u308b\u89e3\u8aac\u30da\u30fc\u30b8\u306b\u4f55\u5ea6\u3082\u3076\u3064\u304b\u3063\u3066\u8ae6\u3081\u305f\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5c02\u9580\u7528\u8a9e\u3092\u4e00 […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5316","post","type-post","status-publish","format-standard","hentry","category-daily-blog-post"],"_links":{"self":[{"href":"https:\/\/j-wire.info\/index.php?rest_route=\/wp\/v2\/posts\/5316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/j-wire.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/j-wire.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/j-wire.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5316"}],"version-history":[{"count":0,"href":"https:\/\/j-wire.info\/index.php?rest_route=\/wp\/v2\/posts\/5316\/revisions"}],"wp:attachment":[{"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}