{"id":66267,"date":"2025-05-03T10:08:14","date_gmt":"2025-05-03T02:08:14","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66267\/"},"modified":"2025-05-03T10:08:14","modified_gmt":"2025-05-03T02:08:14","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%8e%bb%e8%8e%b7%e5%8f%96%e6%95%b0%e7%bb%84%e4%b8%ad%e5%b0%8f%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66267\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u53bb\u83b7\u53d6\u6570\u7ec4\u4e2d\u5c0f\u6570"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u5c0f\u6570\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u4fdd\u6570\u7ec4\u5143\u7d20\u662f\u6d6e\u70b9\u7c7b\u578b\uff08float \u6216 double\uff09\uff1b\u904d\u5386\u6570\u7ec4\uff1b\u4f7f\u7528\u6d6e\u70b9\u7c7b\u578b\u65b9\u6cd5\u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a\u6709\u6548\u5c0f\u6570\uff1b\u8f93\u51fa\u6216\u5b58\u50a8\u5c0f\u6570\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111505363618261.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u53bb\u83b7\u53d6\u6570\u7ec4\u4e2d\u5c0f\u6570\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u53bb\u83b7\u53d6\u6570\u7ec4\u4e2d\u5c0f\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u4e2d\u7684\u5c0f\u6570<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u5143\u7d20\u5b58\u50a8\u4e3a\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5c0f\u6570\uff0c\u60a8\u9700\u8981\uff1a<\/p>\n<p><strong>1. \u68c0\u67e5\u6570\u7ec4\u5143\u7d20\u7c7b\u578b<\/strong><\/p>\n<p>\u786e\u4fdd\u6570\u7ec4\u5143\u7d20\u662f\u6d6e\u70b9\u578b\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982 float \u6216 double\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>2. \u904d\u5386\u6570\u7ec4<\/strong><\/p>\n<p>\u4f7f\u7528 for \u5faa\u73af\u6216\u589e\u5f3a for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/p>\n<p><strong>3. \u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a\u5c0f\u6570<\/strong><\/p>\n<p>\u4f7f\u7528\u6d6e\u70b9\u7c7b\u578b\u7684\u65b9\u6cd5\uff08\u4f8b\u5982 isNaN() \u6216 isInfinite()\uff09\u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a\u6709\u6548\u7684\u5c0f\u6570\u3002<\/p>\n<p><strong>4. \u8f93\u51fa\u6216\u5b58\u50a8\u5c0f\u6570<\/strong><\/p>\n<p>\u627e\u5230\u5c0f\u6570\u5143\u7d20\u540e\uff0c\u60a8\u53ef\u4ee5\u5c06\u5176\u8f93\u51fa\u6216\u5b58\u50a8\u5230\u5176\u4ed6\u53d8\u91cf\u4e2d\u3002<\/p>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>\/\/ \u5b9a\u4e49\u548c\u521d\u59cb\u5316\u6570\u7ec4\nfloat[] numbers = {1.2f, 3.4f, 5.6f, 7.8f, 9.0f};\n\n\/\/ \u904d\u5386\u6570\u7ec4\nfor (float number : numbers) {\n    \/\/ \u68c0\u67e5\u5c0f\u6570\n    if (!Float.isNaN(number) &amp;&amp; !Float.isInfinite(number)) {\n        System.out.println(\"\u5c0f\u6570\uff1a \" + number);\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<pre>\u5c0f\u6570\uff1a 1.2\n\u5c0f\u6570\uff1a 3.4\n\u5c0f\u6570\uff1a 5.6\n\u5c0f\u6570\uff1a 7.8<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u53bb\u83b7\u53d6\u6570\u7ec4\u4e2d\u5c0f\u6570\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\uff0c\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u5c0f\u6570\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u4fdd\u6570\u7ec4\u5143\u7d20\u662f\u6d6e\u70b9\u7c7b\u578b\uff08float \u6216 double\uff09\uff1b\u904d\u5386\u6570\u7ec4\uff1b\u4f7f\u7528\u6d6e\u70b9\u7c7b\u578b\u65b9\u6cd5\u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a\u6709\u6548\u5c0f\u6570\uff1b\u8f93\u51fa\u6216\u5b58\u50a8\u5c0f\u6570\u3002 \u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u4e2d\u7684\u5c0f\u6570 \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u5143\u7d20\u5b58\u50a8\u4e3a\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5c0f\u6570\uff0c\u60a8\u9700\u8981\uff1a 1. \u68c0\u67e5\u6570\u7ec4\u5143\u7d20\u7c7b\u578b \u786e\u4fdd\u6570\u7ec4\u5143\u7d20\u662f\u6d6e\u70b9\u578b\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982 float \u6216 double\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 2. \u904d\u5386\u6570\u7ec4 \u4f7f\u7528 for \u5faa\u73af\u6216\u589e\u5f3a for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002 3. \u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a\u5c0f\u6570 \u4f7f\u7528\u6d6e\u70b9\u7c7b\u578b\u7684\u65b9\u6cd5\uff08\u4f8b\u5982 isNaN() \u6216 isInfinite()\uff09\u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a\u6709\u6548\u7684\u5c0f\u6570\u3002 4. \u8f93\u51fa\u6216\u5b58\u50a8\u5c0f\u6570 \u627e\u5230\u5c0f\u6570\u5143\u7d20\u540e\uff0c\u60a8\u53ef\u4ee5\u5c06\u5176\u8f93\u51fa\u6216\u5b58\u50a8\u5230\u5176\u4ed6\u53d8\u91cf\u4e2d\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a \/\/ \u5b9a\u4e49\u548c\u521d\u59cb\u5316\u6570\u7ec4 float[] numbers = {1.2f, 3.4f, 5.6f, 7.8f, 9.0f}; \/\/ \u904d\u5386\u6570\u7ec4 for (float number : numbers) { \/\/ \u68c0\u67e5\u5c0f\u6570 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66267","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66267"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66267\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}