{"id":1402,"date":"2020-11-09T14:15:44","date_gmt":"2020-11-09T05:15:44","guid":{"rendered":"https:\/\/www.kwonline.org\/memo2\/?p=1402"},"modified":"2020-11-09T14:15:44","modified_gmt":"2020-11-09T05:15:44","slug":"ubuntu-20_04-change-default-jdk-from-8-to-11","status":"publish","type":"post","link":"https:\/\/www.kwonline.org\/memo2\/2020\/11\/09\/ubuntu-20_04-change-default-jdk-from-8-to-11\/","title":{"rendered":"Ubuntu 20.04: \u30c7\u30d5\u30a9\u30eb\u30c8\u306eJava\u3092OpenJDK8\u304b\u308911\u306b\u5909\u66f4\u3059\u308b"},"content":{"rendered":"<p>Charles\u3092\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3057\u305f\u3089\u8d77\u52d5\u3057\u306a\u304f\u306a\u3063\u305f\u3002<\/p>\n<p>\u3069\u3046\u3084\u3089Charles\u306f\u3082\u3046Java8\u3067\u306f\u52d5\u304b\u306a\u3044\u3002<br \/>\n\u3068\u3044\u3046\u308f\u3051\u3067\u30b7\u30b9\u30c6\u30e0\u30c7\u30d5\u30a9\u30eb\u30c8\u306eJava\u3092OpenJDK11\u306b\u5909\u66f4\u3057\u305f\u306e\u3067\u30e1\u30e2\u3002<\/p>\n<p>\u307e\u305a\u306fOpenJDK11\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n$ sudo apt install openjdk-11-jdk\r\n<\/pre>\n<p>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3089update-alternate\u3092\u4f7f\u3063\u3066\u3001java\u3068javac\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u3092OpenJDK11\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u306b\u5909\u66f4\u3059\u308b<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nsudo update-alternatives --config java\r\nsudo update-alternatives --config javac\r\n<\/pre>\n<p>\u3042\u3068\u3001\/etc\/environment\u306eJAVA_HOME\u3082\u5909\u66f4\u3059\u308b<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n# \/etc\/environment\r\nJAVA_HOME=&quot;\/usr\/lib\/jvm\/java-11-openjdk-amd64&quot;\r\n<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Charles\u3092\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3057\u305f\u3089\u8d77\u52d5\u3057\u306a\u304f\u306a\u3063\u305f\u3002 \u3069\u3046\u3084\u3089Charles\u306f\u3082\u3046Java8\u3067\u306f\u52d5\u304b\u306a\u3044\u3002 \u3068\u3044\u3046\u308f\u3051\u3067\u30b7\u30b9\u30c6\u30e0\u30c7\u30d5\u30a9\u30eb\u30c8\u306eJava\u3092OpenJDK11\u306b\u5909\u66f4\u3057\u305f\u306e\u3067\u30e1\u30e2\u3002 \u307e\u305a\u306fOpenJDK11\u3092 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-1402","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/posts\/1402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/comments?post=1402"}],"version-history":[{"count":1,"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/posts\/1402\/revisions"}],"predecessor-version":[{"id":1403,"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/posts\/1402\/revisions\/1403"}],"wp:attachment":[{"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/media?parent=1402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/categories?post=1402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kwonline.org\/memo2\/wp-json\/wp\/v2\/tags?post=1402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}