{"id":677,"date":"2019-02-23T12:54:21","date_gmt":"2019-02-23T04:54:21","guid":{"rendered":"http:\/\/www.eait.co\/?p=677"},"modified":"2019-04-05T12:30:43","modified_gmt":"2019-04-05T04:30:43","slug":"%ef%bc%9fjava-%e5%86%99%e5%85%a5%e5%b9%b6%e8%af%bb%e5%8f%96%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/notes.coremix.net\/?p=677","title":{"rendered":"\uff1fJava\u2014\u2014\u5199\u5165\u5e76\u8bfb\u53d6\u6587\u4ef6"},"content":{"rendered":"<pre>\r\nimport java.io.*;\r\npublic class testjavademo {\r\n\r\n    public static void main(String[] args)\r\n            throws IOException\r\n    {\r\n        \/\/ TODO \u81ea\u52a8\u751f\u6210\u7684\u65b9\u6cd5\u5b58\u6839\r\n        \/\/\u5c06\u6570\u636e\u5199\u5165\u67d0\u4e00\u79cd\u8f7d\u4f53\r\n        DataOutputStream out = new DataOutputStream(new FileOutputStream(\"Order.txt\"));\r\n        \/\/\u4ef7\u683c\r\n        double prices[] = {18.99,9.22,14.22,5.22,4.21};\r\n        \/\/\u6570\u76ee\r\n        int units[] = {10,10,20,39,40};\r\n        \/\/\u4ea7\u54c1\u540d\u79f0\r\n        String descs[] = {\"T\u6064\u886b\",\"\u676f\u5b50\",\"\u6d0b\u5a03\u5a03\",\"\u5927\u5934\u9488\",\"\u94a5\u5319\u94fe\"};\r\n        \/\/\u5411\u6570\u636e\u8fc7\u6ee4\u6d41\u5199\u5165\u4e3b\u8981\u7c7b\u578b\r\n        for(int i = 0;i&lt;prices.length;i++){\r\n            \/\/\u5199\u5165\u4ef7\u683c\uff0c\u4f7f\u7528tab\u9694\u5f00\u6570\u636e\r\n            out.writeDouble(prices[i]);\r\n            out.writeChar('\\t');\r\n            \/\/\u5199\u5165\u6570\u76ee\r\n            out.writeInt(units[i]);\r\n            out.writeChar('\\t');\r\n            \/\/\u5199\u5165\u4ea7\u54c1\u540d\u79f0\uff0c\u884c\u4f4d\u52a0\u5165\u6362\u884c\u7b26\r\n            out.writeChars(descs[i]);\r\n            out.writeChar('\\n');\r\n        }\r\n        out.close();\r\n        \/\/\u5c06\u6570\u636e\u8bfb\u51fa\r\n        DataInputStream in = new DataInputStream(new FileInputStream(\"order.txt\"));\r\n        double price;\r\n        int unit;\r\n        StringBuffer desc;\r\n        double total = 0.0;\r\n        try{\r\n            \/\/\u5f53\u6587\u672c\u88ab\u5168\u90e8\u8bfb\u51fa\u540e\u4f1a\u629b\u51faEOFException\u5f02\u5e38\uff0c\u4e2d\u65ad\u5faa\u73af\r\n            while(true){\r\n                \/\/\u8bfb\u51fa\u4ef7\u683c\r\n                price = in.readDouble();\r\n                \/\/\u8df3\u8fc7tab\r\n                in.readChar();\r\n                \/\/\u8bfb\u51fa\u6570\u76ee\r\n                unit = in.readInt();\r\n                \/\/\u8df3\u8fc7tab\r\n                in.readChar();\r\n                char chr;\r\n                \/\/\u8bfb\u51fa\u4ea7\u54c1\u540d\u79f0\r\n                desc = new StringBuffer();\r\n\r\n                while((chr = in.readChar()) !='\\n'){\r\n                    desc.append(chr);\r\n                }\r\n                System.out.println(\"\u8ba2\u5355\u4fe1\u606f\uff1a\"+\"\u4ea7\u54c1\u540d\u79f0\uff1a\"+desc + \",\\t\u6570\u91cf\uff1a\"+unit+\",\\t\u4ef7\u683c\uff1a\"+price);\r\n                total = total+unit*price;\r\n            }\r\n        }\r\n        catch(EOFException e)\r\n        {\r\n            System.out.println(\"\\n\u603b\u5171\u9700\u8981\uff1a\"+total+\"\u5143\");\r\n        }\r\n        in.close();\r\n\r\n    }\r\n\r\n}\r\n\r\n\r\n\r\n\r\n\u7ed3\u679c\uff1a\r\n\u8ba2\u5355\u4fe1\u606f\uff1a\u4ea7\u54c1\u540d\u79f0\uff1aT\u6064\u886b, \u6570\u91cf\uff1a10, \u4ef7\u683c\uff1a18.99\r\n\u8ba2\u5355\u4fe1\u606f\uff1a\u4ea7\u54c1\u540d\u79f0\uff1aT\u6064\u886b, \u6570\u91cf\uff1a10, \u4ef7\u683c\uff1a18.99\r\n\u8ba2\u5355\u4fe1\u606f\uff1a\u4ea7\u54c1\u540d\u79f0\uff1a\u676f\u5b50, \u6570\u91cf\uff1a10, \u4ef7\u683c\uff1a9.22\r\n\u8ba2\u5355\u4fe1\u606f\uff1a\u4ea7\u54c1\u540d\u79f0\uff1a\u6d0b\u5a03\u5a03, \u6570\u91cf\uff1a20, \u4ef7\u683c\uff1a14.22\r\n\u8ba2\u5355\u4fe1\u606f\uff1a\u4ea7\u54c1\u540d\u79f0\uff1a\u5927\u5934\u9488, \u6570\u91cf\uff1a39, \u4ef7\u683c\uff1a5.22\r\n\u8ba2\u5355\u4fe1\u606f\uff1a\u4ea7\u54c1\u540d\u79f0\uff1a\u94a5\u5319\u94fe, \u6570\u91cf\uff1a40, \u4ef7\u683c\uff1a4.21\r\n\u603b\u5171\u9700\u8981\uff1a938.4799999999999\u5143\r\n\r\n\r\n\r\n<span style=\"color: #ff0000;\">\u6700\u540e\u6253\u5f00order.txt\u6587\u4ef6\u663e\u793a\u662f\u4e71\u7801<\/span><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>import java.io.*; public class testjavademo { public st [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,24],"tags":[],"class_list":["post-677","post","type-post","status-publish","format-standard","hentry","category-java","category-base_code"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=677"}],"version-history":[{"count":1,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/677\/revisions"}],"predecessor-version":[{"id":678,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/677\/revisions\/678"}],"wp:attachment":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}