{"id":205,"date":"2021-01-17T17:58:10","date_gmt":"2021-01-17T09:58:10","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=205"},"modified":"2021-01-27T14:41:27","modified_gmt":"2021-01-27T06:41:27","slug":"java-%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-205.html","title":{"rendered":"java \u6570\u636e\u7c7b\u578b"},"content":{"rendered":"\n<p>java \u6570\u636e\u7c7b\u578b\u5206\u4e3a 2 \u5927\u7c7b\uff1a<\/p>\n\n\n\n<ul><li>\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a\u5305\u62ec\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u3001\u5e03\u5c14<\/li><li>\u5f15\u7528\u6570\u636e\u7c7b\u578b\uff1a\u5305\u62ec\u7c7b\u3001\u6570\u7ec4\u3001\u63a5\u53e3\u7b49<\/li><\/ul>\n\n\n\n<h4 class=\"has-text-align-center\">1.\u57fa\u672c\u6570\u636e\u7c7b\u578b<\/h4>\n\n\n\n<p>\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u53c8\u53eb\u503c\u7c7b\u578b\uff0c\u5206\u4e3a 4\u7c7b8\u79cd\uff0c<\/p>\n\n\n\n<p>\u5176\u4e2d 4\u7c7b\u662f\u6307\uff1a\u6574\u6570\uff0c\u6d6e\u70b9\u6570\uff0c\u5b57\u7b26\uff0c\u5e03\u5c14<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td>\u6570\u636e\u7c7b\u578b<\/td><td>\u5173\u952e\u5b57<\/td><td>\u5185\u5b58\u5360\u7528<\/td><td>\u53d6\u503c\u8303\u56f4<\/td><td>\u5bf9\u5e94\u5f15\u7528\u7c7b\u578b<\/td><\/tr><tr><td>\u5b57\u8282\u578b<\/td><td>byte<\/td><td>1\u4e2a\u5b57\u8282<\/td><td>-128~127<\/td><td>Byte<\/td><\/tr><tr><td>\u77ed\u6574\u578b<\/td><td>short<\/td><td>2\u4e2a\u5b57\u8282<\/td><td>-32768~32767<\/td><td>Short<\/td><\/tr><tr><td>\u6574\u578b<\/td><td>int\uff08\u9ed8\u8ba4)<\/td><td>4\u4e2a\u5b57\u8282<\/td><td>-2<sup>31<\/sup>~2<sup>31<\/sup>-1<\/td><td>Integer<\/td><\/tr><tr><td>\u957f\u6574\u578b<\/td><td>long<\/td><td>8\u4e2a\u5b57\u8282<\/td><td>-2<sup>63<\/sup>~2<sup>63<\/sup>-1<\/td><td>Long<\/td><\/tr><tr><td>\u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570<\/td><td>float<\/td><td>4\u4e2a\u5b57\u8282<\/td><td>1.4013E-45~3.4028E+38<\/td><td>Float<\/td><\/tr><tr><td>\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570<\/td><td>double\uff08\u9ed8\u8ba4\uff09<\/td><td>8\u4e2a\u5b57\u8282<\/td><td>4.9E-324~1.7977E+308<\/td><td>Double<\/td><\/tr><tr><td>\u5b57\u7b26\u578b<\/td><td>char<\/td><td>2\u4e2a\u5b57\u8282<\/td><td>0~65535<\/td><td>Character<\/td><\/tr><tr><td>\u5e03\u5c14\u7c7b\u578b<\/td><td>boolean<\/td><td>1\u4e2a\u5b57\u8282<\/td><td>true, false<\/td><td>Boolean<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u6574\u6570( byte, short, int, long) \u9ed8\u8ba4\u662f int\uff0c\u5bf9\u4e8e\u6d6e\u70b9\u6570\u5219\u9ed8\u8ba4\u662f double<\/p>\n\n\n\n<p>\u5bf9\u4e8e long \u7c7b\u578b\u63a8\u8350\u52a0 L\uff0c\u4f8b\u5982 100L\uff0c\u5bf9\u4e8e float \u7c7b\u578b\u63a8\u8350\u52a0 F\uff0c\u4f8b\u5982 2.4F<\/p>\n\n\n\n<h4 class=\"has-text-align-center\">2.\u5f15\u7528\u6570\u636e\u7c7b\u578b<\/h4>\n\n\n\n<p>\u5bf9\u4e8e new \u51fa\u6765\u7684\uff0c\u90fd\u662f\u5f15\u7528\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u5f15\u7528\u6570\u636e\u7c7b\u578b\uff0c\u7c7b\u4f3c\u4e8e C \u8bed\u8a00\u7684\u6307\u9488\uff0c\u662f\u5f15\u7528\u4e86\u67d0\u4e2a\u6570\u636e\u7684\u5730\u5740<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\u7684\u64cd\u4f5c\uff0c\u9700\u8981\u683c\u5916\u5c0f\u5fc3\uff0c\u6bd4\u5982\u6df1\u62f7\u8d1d\u4e0e\u6d45\u62f7\u8d1d\u7b49\u95ee\u9898<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java \u6570\u636e\u7c7b\u578b\u5206\u4e3a 2 \u5927\u7c7b\uff1a \u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a\u5305\u62ec\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u3001\u5e03\u5c14 \u5f15\u7528\u6570\u636e\u7c7b\u578b\uff1a\u5305\u62ec\u7c7b\u3001\u6570\u7ec4\u3001\u63a5&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-205.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">java \u6570\u636e\u7c7b\u578b<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/205"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=205"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/205\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}