{"description":"Ubuntu (20)https://qiita.com/terappy/items/537c069923144a9d9755https://eng-entrance.com/java-hello-worldhttps://www.net.t-labs.tu-berlin.de/teaching/computer_networking/02.08.htm apt install openjdk-8-jdkjava -versionjavac -version vim hello.javapublic class hello{ public static void main(String arg\u2026","url":"https://htn20190109.hatenablog.com/entry/2020/08/29/132610","version":"1.0","author_name":"HTN20190109","provider_name":"Hatena Blog","blog_url":"https://htn20190109.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/HTN20190109/","categories":["OS"],"published":"2020-08-29 13:26:10","image_url":null,"height":"190","title":"Java\u3067Hello World","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2020%2F08%2F29%2F132610\" title=\"Java\u3067Hello World - HTN20190109\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","type":"rich","provider_url":"https://hatena.blog","blog_title":"HTN20190109\u306e\u65e5\u8a18"}