{"id":5429,"date":"2026-04-22T22:50:46","date_gmt":"2026-04-22T13:50:46","guid":{"rendered":"https:\/\/j-wire.info\/?p=5429"},"modified":"2026-04-22T22:50:46","modified_gmt":"2026-04-22T13:50:46","slug":"java-programming-for-beginners-everything-you-need-to-know-before-writing-your-first-line-of-code-2","status":"publish","type":"post","link":"https:\/\/j-wire.info\/?p=5429","title":{"rendered":"Java Programming for Beginners: Everything You Need to Know Before Writing Your First Line of Code"},"content":{"rendered":"

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Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u59cb\u3081\u308b\u524d\u306b\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u57fa\u790e\u77e5\u8b58<\/h2>\n

\u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u59cb\u3081\u305f\u3044\u3051\u3069\u3001Java\u3063\u3066\u96e3\u3057\u305d\u3046\u2026\u4f55\u304b\u3089\u624b\u3092\u3064\u3051\u308c\u3070\u3044\u3044\u306e\uff1f\u300d\u305d\u3093\u306a\u4e0d\u5b89\u3092\u62b1\u3048\u308b\u3042\u306a\u305f\u306e\u305f\u3081\u306b\u3001Java\u521d\u5fc3\u8005\u304c\u6700\u521d\u306b\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u3059\u3079\u3066\u306e\u57fa\u790e\u77e5\u8b58\u3092\u3053\u306e1\u8a18\u4e8b\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u3082Java\u3092\u59cb\u3081\u308b\u4e00\u6b69\u3092\u8e0f\u307f\u51fa\u3059\u6e96\u5099\u304c\u6574\u3044\u307e\u3059\uff01<\/p>\n

Java\u5b66\u7fd2\u3067\u306e\u3088\u304f\u3042\u308b\u60a9\u307f\u30fb\u8e93\u304d\u30dd\u30a4\u30f3\u30c8<\/h2>\n

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Java\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u9078\u3073\u3084\u3059\u3044\u7406\u7531<\/h2>\n

Java\u306f1995\u5e74\u306b\u767b\u5834\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3084\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u72ec\u7acb\u6027\u304c\u7279\u5fb4\u3067\u3059\u3002Android\u30a2\u30d7\u30ea\u958b\u767a\u3084\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u3001Web\u958b\u767a\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3001\u5b9f\u52d9\u3067\u306e\u9700\u8981\u3082\u9ad8\u3044\u8a00\u8a9e\u3067\u3059\u3002\u3053\u306e\u70b9\u304c\u3001Java\u3092\u5b66\u3076\u3079\u304d\u5f37\u3044\u52d5\u6a5f\u4ed8\u3051\u3068\u306a\u308a\u307e\u3059\u3002\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3057\u3084\u3059\u304f\u3001\u9078\u3070\u308c\u308b\u7406\u7531\u304c\u3053\u3053\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n

Java\u958b\u767a\u74b0\u5883\u306e\u7c21\u5358\u306a\u69cb\u7bc9\u624b\u9806<\/h2>\n

Java\u3092\u59cb\u3081\u308b\u306b\u306f\u3001\u307e\u305aJDK\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001VS Code\u3084IntelliJ IDEA\u306a\u3069\u306eIDE\u3092\u9078\u3073\u307e\u3059\u3002\u6b21\u306b\u3001Hello World\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3057\u3001Java\u74b0\u5883\u3092\u6574\u3048\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u3089\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u3001\u521d\u5fc3\u8005\u3067\u3082\u30b9\u30e0\u30fc\u30ba\u306b\u958b\u767a\u3092\u958b\u59cb\u3067\u304d\u308b\u3088\u3046\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n

\u52b9\u7387\u7684\u306aJava\u6587\u6cd5\u7fd2\u5f97\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/h2>\n

Java\u306e\u57fa\u790e\u6587\u6cd5\u3092\u52b9\u7387\u3088\u304f\u5b66\u3076\u305f\u3081\u306b\u306f\u3001\u5909\u6570\u3001\u30c7\u30fc\u30bf\u578b\u3001\u6761\u4ef6\u5206\u5c90\u3001\u30eb\u30fc\u30d7\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u30af\u30e9\u30b9\u306e\u9806\u306b\u5b66\u7fd2\u3059\u308b\u306e\u304c\u6700\u9069\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u521d\u5fc3\u8005\u3067\u3082\u6df7\u4e71\u305b\u305a\u3001\u4f53\u7cfb\u7684\u306b\u77e5\u8b58\u3092\u8eab\u306b\u3064\u3051\u3089\u308c\u307e\u3059\u3002\u4f55\u3092\u3069\u306e\u9806\u756a\u3067\u5b66\u3076\u3079\u304d\u304b\u3092\u660e\u78ba\u306b\u3057\u3001\u81ea\u5206\u306b\u5408\u3063\u305f\u5b66\u7fd2\u8a08\u753b\u3092\u7acb\u3066\u307e\u3057\u3087\u3046\u3002<\/p>\n

Java\u306b\u3064\u3044\u3066\u306e\u3088\u304f\u3042\u308b\u8aa4\u89e3\u3092\u89e3\u304f<\/h2>\n

\u300cJava\u306f\u53e4\u3044\u300d\u300c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u304c\u96e3\u3057\u3044\u300d\u300cJava\u3068JavaScript\u306f\u540c\u3058\u300d\u300c\u74b0\u5883\u69cb\u7bc9\u3055\u3048\u3059\u308c\u3070\u4e2d\u7d1a\u8005\u300d\u3068\u3044\u3046\u8aa4\u89e3\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002Java\u306f\u73fe\u5728\u3067\u3082\u9700\u8981\u304c\u3042\u308a\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3082\u4e00\u5ea6\u306b\u7406\u89e3\u3059\u308b\u5fc5\u8981\u306f\u306a\u3044\u3067\u3059\u3002\u6b63\u3057\u3044\u60c5\u5831\u3067\u3057\u3063\u304b\u308a\u5b66\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n

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Java\u5b66\u7fd2\u306e\u8981\u70b9\u3068\u4eca\u65e5\u304b\u3089\u59cb\u3081\u3089\u308c\u308b\u30a2\u30af\u30b7\u30e7\u30f3<\/h2>\n

\u4eca\u56de\u306e\u8981\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a1. Java\u306e\u7279\u5fb4\u3068\u5229\u70b9\u3092\u77e5\u308b\u30022. \u958b\u767a\u74b0\u5883\u3092\u6574\u3048\u308b\u30023. \u57fa\u790e\u6587\u6cd5\u3092\u9806\u5e8f\u3060\u3066\u3066\u5b66\u3076\u3002\u3053\u308c\u3092\u3082\u3068\u306b\u3001\u4eca\u3059\u3050Java\u5b66\u7fd2\u3092\u59cb\u3081\u307e\u3057\u3087\u3046\u3002\u307e\u305a\u306f\u3001IDE\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u7c21\u5358\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u3057\u3066\u307f\u308b\u3053\u3068\u304b\u3089\u59cb\u3081\u3066\u304f\u3060\u3055\u3044!<\/p>\n","protected":false},"excerpt":{"rendered":"Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u59cb\u3081\u308b\u524d\u306b\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u57fa\u790e\u77e5\u8b58 \u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u59cb\u3081\u305f\u3044\u3051\u3069\u3001Java\u3063\u3066\u96e3\u3057\u305d\u3046\u2026\u4f55\u304b\u3089\u624b\u3092\u3064\u3051\u308c\u3070\u3044\u3044\u306e\uff1f\u300d\u305d\u3093\u306a\u4e0d\u5b89\u3092\u62b1\u3048\u308b\u3042\u306a\u305f\u306e\u305f\u3081\u306b\u3001Java\u521d\u5fc3\u8005\u304c\u6700\u521d\u306b\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u3059\u3079\u3066\u306e\u57fa […]","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-5429","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\/5429","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=5429"}],"version-history":[{"count":0,"href":"https:\/\/j-wire.info\/index.php?rest_route=\/wp\/v2\/posts\/5429\/revisions"}],"wp:attachment":[{"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5429"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5429"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/j-wire.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}