{"id":2156,"date":"2024-05-29T13:13:54","date_gmt":"2024-05-29T05:13:54","guid":{"rendered":"https:\/\/wp.minicoda.com\/?p=2156"},"modified":"2024-05-29T13:13:54","modified_gmt":"2024-05-29T05:13:54","slug":"%e5%a6%82%e4%bd%95%e8%8e%b7%e5%8f%96java-class%e6%96%87%e4%bb%b6%e7%89%88%e6%9c%ac%e5%8f%b7","status":"publish","type":"post","link":"https:\/\/wp.minicoda.com\/index.php\/%e5%a6%82%e4%bd%95%e8%8e%b7%e5%8f%96java-class%e6%96%87%e4%bb%b6%e7%89%88%e6%9c%ac%e5%8f%b7\/","title":{"rendered":"\u5982\u4f55\u83b7\u53d6Java .class\u6587\u4ef6\u7248\u672c\u53f7?"},"content":{"rendered":"\n<p>  Java class\u6587\u4ef6\u7b2c\u4e8c\u4e2a\u56db\u5b57\u8282\u5206\u522b\u662f\u4e24\u4e2a\u5b57\u8282\u7684minor_version\u548c\u4e24\u4e2a\u5b57\u8282\u7684major_version. JDK 1.1\u5bf9\u5e94major_version\u662f45, JDK 1.8\u5bf9\u5e94\u7248\u672c\u4e3a52 (0x34).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>hexdump demo.class<br>0000000 feca beba <strong><em>0000 3400 <\/em><\/strong>1b00 000a 0005 090e<\/li>\n<\/ul>\n\n\n\n<p>  \u53ef\u4ee5\u901a\u8fc7\u7f16\u8bd1\u9009\u9879 -source <strong><em>xxx <\/em><\/strong>-target <strong><em>yyy<\/em><\/strong>\u5c06\u6e90\u4ee3\u7801\u6309\u7167<strong><em>xxx<\/em><\/strong>\u7248\u672c\u7f16\u8bd1\uff0c\u76ee\u6807class\u6587\u4ef6\u4e3a<strong><em>yyy<\/em><\/strong>\u7248\u672c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>javac -target 1.7 -source 1.7 demo.java<br>\u751f\u6210\u7684class\u6587\u4ef6major_version\u5c31\u53d8\u6210\u4e860x33 (1.7\u7248\u672c)\u3002<br>0000000 feca beba 0000 <strong><em>3300 <\/em><\/strong>1b00 000a 0005 090e<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Java class\u6587\u4ef6\u7b2c\u4e8c\u4e2a\u56db\u5b57\u8282\u5206\u522b\u662f\u4e24\u4e2a\u5b57\u8282\u7684minor_version\u548c\u4e24\u4e2a\u5b57\u8282\u7684major_version. JDK 1.1\u5bf9\u5e94major_version\u662f45, JDK 1.8\u5bf9\u5e94\u7248\u672c\u4e3a5&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[299],"tags":[],"class_list":["post-2156","post","type-post","status-publish","format-standard","hentry","category-think"],"views":123,"_links":{"self":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts\/2156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/comments?post=2156"}],"version-history":[{"count":1,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts\/2156\/revisions"}],"predecessor-version":[{"id":2157,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts\/2156\/revisions\/2157"}],"wp:attachment":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/media?parent=2156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/categories?post=2156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/tags?post=2156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}