{"id":110,"date":"2023-08-20T22:38:58","date_gmt":"2023-08-20T13:38:58","guid":{"rendered":"https:\/\/blog.mumooinfo.com\/?p=110"},"modified":"2023-10-10T22:47:11","modified_gmt":"2023-10-10T13:47:11","slug":"java%ec%9d%98-%ed%8c%a8%ed%82%a4%ec%a7%80","status":"publish","type":"post","link":"https:\/\/mumooinfo.com\/programming\/java%ec%9d%98-%ed%8c%a8%ed%82%a4%ec%a7%80\/","title":{"rendered":"JAVA\uc758 \ud328\ud0a4\uc9c0"},"content":{"rendered":"\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"533\" height=\"533\" class=\"wp-image-111 aligncenter\" src=\"https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-13.jpg\" alt=\"\" srcset=\"https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-13.jpg 533w, https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-13-300x300.jpg 300w, https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-13-150x150.jpg 150w\" sizes=\"(max-width: 533px) 100vw, 533px\" \/><\/figure><\/div>\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">\ud328\ud0a4\uc9c0(Package)<\/h2>\r\n\r\n\r\n\r\n<p>Java\uc5d0\uc11c \ud328\ud0a4\uc9c0\ub294 \uad00\ub828 \ud074\ub798\uc2a4, \uc778\ud130\ud398\uc774\uc2a4 \ubc0f \uae30\ud0c0 \ub9ac\uc18c\uc2a4\ub97c \uacc4\uce35 \uad6c\uc870\ub85c \uad6c\uc131\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ub124\uc784\uc2a4\ud398\uc774\uc2a4 \uba54\ucee4\ub2c8\uc998\uc744 \uc81c\uacf5\ud558\uc5ec \ub354 \ud070 \ud504\ub85c\uadf8\ub7a8\uc758 \ubcf5\uc7a1\uc131\uc744 \uad00\ub9ac\ud558\uace0 \ub2e4\ub978 \ud328\ud0a4\uc9c0\uc758 \ud074\ub798\uc2a4 \uac04\uc758 \uc774\ub984 \ucda9\ub3cc\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4. \ud328\ud0a4\uc9c0\ub294 \ucf54\ub4dc \uc7ac\uc0ac\uc6a9\uc131, \uc720\uc9c0 \uad00\ub9ac\uc131 \ubc0f \uac1c\ubc1c\uc790 \uac04\uc758 \uacf5\ub3d9 \uc791\uc5c5\uc5d0\ub3c4 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \ub2e4\uc74c\uc740 Java \ud328\ud0a4\uc9c0\uc5d0 \ub300\ud55c \uba87 \uac00\uc9c0 \ud575\uc2ec \uc0ac\ud56d\uc785\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4435445268668222\" crossorigin=\"anonymous\"><\/script> <!-- [\ub514\uc2a4\ud50c\ub808\uc774 \uad11\uace0] \ubc18\uc751\ud615 \uc6cc\ub4dc\ud504\ub808\uc2a4 \ubcf8\ubb38 --> <ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-client=\"ca-pub-4435445268668222\" data-ad-slot=\"9091536397\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins> <script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/center>\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\ud328\ud0a4\uc9c0 \uad6c\uc870<\/h3>\r\n\r\n\r\n\r\n<p>\ud328\ud0a4\uc9c0\ub294 \ub514\ub809\ud1a0\ub9ac\uc640 \uc720\uc0ac\ud55c \uad6c\uc870\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \ud328\ud0a4\uc9c0 \uc774\ub984\uc740 \ud074\ub798\uc2a4 \ud30c\uc77c\uc774 \uc800\uc7a5\ub418\ub294 \ub514\ub809\ud1a0\ub9ac \uad6c\uc870\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, com.example.myapp\uc774\ub77c\ub294 \ud328\ud0a4\uc9c0\uac00 \uc788\ub294 \uacbd\uc6b0 \ud574\ub2f9 \ud328\ud0a4\uc9c0\uc758 \ud074\ub798\uc2a4 \ud30c\uc77c\uc740 com\/example\/myapp\uc774\ub77c\ub294 \ub514\ub809\ud1a0\ub9ac\uc5d0 \uc800\uc7a5\ub429\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\ud328\ud0a4\uc9c0 \uc120\uc5b8<\/h3>\r\n\r\n\r\n\r\n<p>Java \uc18c\uc2a4 \ud30c\uc77c\uc758 \uc2dc\uc791 \ubd80\ubd84\uc5d0\uc11c package \ubb38\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud074\ub798\uc2a4\uac00 \uc18d\ud55c \ud328\ud0a4\uc9c0\ub97c \uc120\uc5b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" style=\"font-size: .875rem; font-family: Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace; line-height: 1.25rem;\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\">\r\n<pre class=\"shiki nord\" style=\"background-color: #2e3440ff;\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81a1c1;\">package<\/span> <span style=\"color: #8fbcbb;\">com<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #8fbcbb;\">example<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #8fbcbb;\">myapp<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span><\/code><\/pre>\r\n<\/div>\r\n\r\n\r\n\r\n<p>\uc774 \uba85\ub839\ubb38\uc740 \ud30c\uc77c\uc5d0\uc11c \uc8fc\uc11d\uc774 \uc544\ub2cc \uccab \ubc88\uc9f8 \ud589\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">Import \ubb38<\/h3>\r\n\r\n\r\n\r\n<p>\ub2e4\ub978 \ud328\ud0a4\uc9c0\uc758 \ud074\ub798\uc2a4\ub97c \uc0ac\uc6a9\ud558\ub824\uba74 \uc77c\ubc18\uc801\uc73c\ub85c import \ubb38\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud074\ub798\uc2a4\ub97c \uac00\uc838\uc640\uc57c \ud569\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" style=\"font-size: .875rem; font-family: Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace; line-height: 1.25rem;\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\">\r\n<pre class=\"shiki nord\" style=\"background-color: #2e3440ff;\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81a1c1;\">import<\/span> <span style=\"color: #8fbcbb;\">com<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #8fbcbb;\">example<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #8fbcbb;\">otherpackage<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #8fbcbb;\">OtherClass<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span><\/code><\/pre>\r\n<\/div>\r\n\r\n\r\n\r\n<p>\uc774\ub807\uac8c \ud558\uba74 \ub9e4\ubc88 \uc804\uccb4 \ud328\ud0a4\uc9c0 \uc774\ub984\uc744 \uc9c0\uc815\ud558\uc9c0 \uc54a\uace0\ub3c4 OtherClass\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uae30\ubcf8 \ud328\ud0a4\uc9c0<\/h3>\r\n\r\n\r\n\r\n<p>Java \uc18c\uc2a4 \ud30c\uc77c\uc758 \uc2dc\uc791 \ubd80\ubd84\uc5d0 \ud328\ud0a4\uc9c0\ub97c \uba85\uc2dc\uc801\uc73c\ub85c \uc120\uc5b8\ud558\uc9c0 \uc54a\uc73c\uba74 \ud574\ub2f9 \ud30c\uc77c\uc758 \ud074\ub798\uc2a4\uac00 \uae30\ubcf8 \ud328\ud0a4\uc9c0\uc5d0 \uc18d\ud558\uac8c \ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ud074\ub798\uc2a4\ub97c \uc801\uc808\ud55c \ud328\ud0a4\uc9c0\ub85c \uad6c\uc131\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uc561\uc138\uc2a4 \ud55c\uc815\uc790<\/h3>\r\n\r\n\r\n\r\n<p>Java\ub294 \ud328\ud0a4\uc9c0 \ub0b4\ubd80 \ubc0f \uc678\ubd80\uc758 \ud074\ub798\uc2a4, \uba54\uc11c\ub4dc \ubc0f \ud544\ub4dc\uc758 \uac00\uc2dc\uc131 \ubc0f \uc561\uc138\uc2a4 \uac00\ub2a5\uc131\uc744 \uc81c\uc5b4\ud558\ub294 \u200b\u200b\uc561\uc138\uc2a4 \ud55c\uc815\uc790(public, protected, default \ubc0f private)\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\ud328\ud0a4\uc9c0 \uba85\uba85 \uaddc\uce59<\/h3>\r\n\r\n\r\n\r\n<p>\ud328\ud0a4\uc9c0 \uc774\ub984\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc18c\ubb38\uc790\ub85c \uc791\uc131\ub429\ub2c8\ub2e4. \ud328\ud0a4\uc9c0 \uac04\uc758 \uc774\ub984 \ucda9\ub3cc\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc5ed \ub3c4\uba54\uc778 \uc774\ub984 \uaddc\uce59\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc77c\ubc18\uc801\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \ud68c\uc0ac\uc5d0 \uc18d\ud55c \ud328\ud0a4\uc9c0\uc758 \uc774\ub984\uc740 com.companyname.appname\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">Java \ud45c\uc900 \ub77c\uc774\ube0c\ub7ec\ub9ac<\/h3>\r\n\r\n\r\n\r\n<p>Java \uc790\uccb4\uac00 \ud328\ud0a4\uc9c0\ub97c \uad11\ubc94\uc704\ud558\uac8c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc790\ubc14 \ud45c\uc900 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub294 java.lang, java.util, java.io \ub4f1\uacfc \uac19\uc740 \ud328\ud0a4\uc9c0\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\ub9de\ucda4 \ud328\ud0a4\uc9c0 \ub9cc\ub4e4\uae30<\/h3>\r\n\r\n\r\n\r\n<p>\ub9de\ucda4 \ud328\ud0a4\uc9c0\ub97c \ub9cc\ub4e4\ub824\uba74 \ud328\ud0a4\uc9c0 \uacc4\uce35 \uad6c\uc870\uc640 \uc77c\uce58\ud558\ub294 \ub514\ub809\ud130\ub9ac\uc5d0 \uc18c\uc2a4 \ud30c\uc77c\uc744 \uad6c\uc131\ud574\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, com.example.myapp\uc774\ub77c\ub294 \ud328\ud0a4\uc9c0\uac00 \uc788\ub294 \uacbd\uc6b0 \ub514\ub809\ud1a0\ub9ac \uad6c\uc870\ub294 \ub2e4\uc74c\uacfc \uac19\uc544\uc57c \ud569\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" style=\"font-size: .875rem; font-family: Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace; line-height: 1.25rem;\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\">\r\n<pre class=\"shiki nord\" style=\"background-color: #2e3440ff;\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81a1c1;\">-<\/span><span style=\"color: #d8dee9ff;\"> src<\/span><\/span>\r\n<span class=\"line\">  <span style=\"color: #81a1c1;\">-<\/span><span style=\"color: #d8dee9ff;\"> com<\/span><\/span>\r\n<span class=\"line\">    <span style=\"color: #81a1c1;\">-<\/span><span style=\"color: #d8dee9ff;\"> example<\/span><\/span>\r\n<span class=\"line\">      <span style=\"color: #81a1c1;\">-<\/span><span style=\"color: #d8dee9ff;\"> myapp<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #81a1c1;\">-<\/span> <span style=\"color: #d8dee9;\">MyClass<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #d8dee9;\">java<\/span><\/span><\/code><\/pre>\r\n<\/div>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uc911\ucca9 \ud328\ud0a4\uc9c0<\/h3>\r\n\r\n\r\n\r\n<p>\uc911\ucca9 \ud328\ud0a4\uc9c0\ub97c \ub9cc\ub4e4\uc5b4 \ucf54\ub4dc\ub97c \ucd94\uac00\ub85c \uad6c\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, com.example.myapp.utilities\uac00 com.example.myapp\uc758 \ud558\uc704 \ud328\ud0a4\uc9c0\ub85c \uc788\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\ud074\ub798\uc2a4 \uacbd\ub85c<\/h3>\r\n\r\n\r\n\r\n<p>\ud074\ub798\uc2a4 \uacbd\ub85c\ub294 \ucf54\ub4dc\uc5d0\uc11c \ucc38\uc870\ub420 \ub54c Java\uac00 \ud074\ub798\uc2a4\ub97c \ucc3e\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \ub514\ub809\ud1a0\ub9ac \ubc0f JAR \ud30c\uc77c\uc758 \ubaa9\ub85d\uc785\ub2c8\ub2e4. JVM(Java Virtual Machine)\uc774 \ud504\ub85c\uadf8\ub7a8\uc744 \uc2e4\ud589\ud558\ub294 \ub370 \ud544\uc694\ud55c \ud074\ub798\uc2a4\ub97c \ucc3e\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4435445268668222\" crossorigin=\"anonymous\"><\/script> <!-- [\ub514\uc2a4\ud50c\ub808\uc774 \uad11\uace0] \ubc18\uc751\ud615 \uc6cc\ub4dc\ud504\ub808\uc2a4 \ubcf8\ubb38 --> <ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-client=\"ca-pub-4435445268668222\" data-ad-slot=\"9091536397\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins> <script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/center>\r\n<p>&nbsp;<\/p>\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n<p>\ud328\ud0a4\uc9c0\ub294 \ucf54\ub4dc\uc640 \ub9ac\uc18c\uc2a4\ub97c \uad00\ub9ac\ud558\ub294 \uccb4\uacc4\uc801\uc774\uace0 \uccb4\uacc4\uc801\uc778 \ubc29\ubc95\uc744 \uc81c\uacf5\ud568\uc73c\ub85c\uc368 Java \uac1c\ubc1c\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ud2b9\ud788 \ub300\uaddc\ubaa8 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \ub354 \ub098\uc740 \ucf54\ub4dc \uad6c\uc131, \uc7ac\uc0ac\uc6a9\uc131 \ubc0f \uc720\uc9c0 \uad00\ub9ac\uc5d0 \uae30\uc5ec\ud569\ub2c8\ub2e4.<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp; \ud328\ud0a4\uc9c0(Package) Java\uc5d0\uc11c \ud328\ud0a4\uc9c0\ub294 \uad00\ub828 \ud074\ub798\uc2a4, \uc778\ud130\ud398\uc774\uc2a4 \ubc0f \uae30\ud0c0 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":111,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-110","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts\/110"}],"collection":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/comments?post=110"}],"version-history":[{"count":3,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts\/110\/revisions"}],"predecessor-version":[{"id":524,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts\/110\/revisions\/524"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/media\/111"}],"wp:attachment":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/media?parent=110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/categories?post=110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/tags?post=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}