{"id":1060,"date":"2022-10-22T14:07:23","date_gmt":"2022-10-22T06:07:23","guid":{"rendered":"https:\/\/qaqaq.top\/?p=1060"},"modified":"2022-11-27T12:39:50","modified_gmt":"2022-11-27T04:39:50","slug":"%e5%a4%9a%e7%ba%bf%e7%a8%8b-%e5%88%9b%e5%bb%ba%e5%a4%9a%e7%ba%bf%e7%a8%8b%e7%9a%84%e6%96%b9%e5%bc%8f%e4%b8%89%ef%bc%9a%e5%ae%9e%e7%8e%b0callable%e6%8e%a5%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=1060","title":{"rendered":"\u591a\u7ebf\u7a0b-\u521b\u5efa\u591a\u7ebf\u7a0b\u7684\u65b9\u5f0f\u4e09\uff1a\u5b9e\u73b0Callable\u63a5\u53e3"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P444;\r\n\r\nimport java.util.concurrent.Callable;\r\nimport java.util.concurrent.ExecutionException;\r\nimport java.util.concurrent.FutureTask;\r\n\r\n\/**\r\n * \u521b\u5efa\u7ebf\u7a0b\u7684\u65b9\u5f0f\u4e09\uff1a\u5b9e\u73b0Callable\u63a5\u53e3\u3002 --- JDK 5.0\u65b0\u589e\r\n *\r\n * \u5982\u4f55\u7406\u89e3\u5b9e\u73b0Callable\u63a5\u53e3\u7684\u65b9\u5f0f\u521b\u5efa\u591a\u7ebf\u7a0b\u6bd4\u5b9e\u73b0Runnable\u63a5\u53e3\u521b\u5efa\u591a\u7ebf\u7a0b\u65b9\u5f0f\u5f3a\u5927\uff1f\r\n * 1. call()\u53ef\u4ee5\u6709\u8fd4\u56de\u503c\u3002\r\n * 2. call()\u53ef\u4ee5\u629b\u51fa\u5f02\u5e38\uff0c\u88ab\u5916\u9762\u7684\u64cd\u4f5c\u6355\u83b7\uff0c\u83b7\u53d6\u5f02\u5e38\u7684\u4fe1\u606f\r\n * 3. Callable\u662f\u652f\u6301\u6cdb\u578b\u7684\r\n *\r\n * @author RichieZhang\r\n * @create 2022-10-21 \u4e0b\u5348 9:34\r\n *\/\r\n\/\/1. \u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0callable\u7684\u5b9e\u73b0\u7c7b\r\n\r\nclass NumThread implements Callable{\r\n    \/\/2. \u5b9e\u73b0call\u65b9\u6cd5\uff0c\u5c06\u6b64\u7ebf\u7a0b\u9700\u8981\u6267\u884c\u7684\u64cd\u4f5c\u58f0\u660e\u5728call()\u4e2d\r\n    @Override\r\n    public Object call() throws Exception {\r\n        int sum = 0;\r\n        for (int i = 1; i &lt;= 100; i++) {\r\n            if(i % 2 == 0){\r\n                System.out.println(i);\r\n                sum += i;\r\n            }\r\n\r\n        }\r\n        return sum;\r\n    }\r\n}\r\n\r\npublic class ThreadNew {\r\n\r\n    public static void main(String&#91;] args) {\r\n        \/\/3. \u521b\u5efaCallable\u63a5\u53e3\u5b9e\u73b0\u7c7b\u7684\u5bf9\u8c61\r\n        NumThread numThread = new NumThread();\r\n        \/\/4. \u5c06\u6b64Callable\u63a5\u53e3\u5b9e\u73b0\u7c7b\u7684\u5bf9\u8c61\u4f5c\u4e3a\u4f20\u9012\u5230FutureTask\u6784\u9020\u5668\u4e2d\uff0c\u521b\u5efaFutureTask\u7684\u5bf9\u8c61\r\n        FutureTask futureTask = new FutureTask(numThread);\r\n        \/\/5. \u5c06FutureTask\u7684\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u5230Thread\u7c7b\u7684\u6784\u9020\u5668\u4e2d\uff0c\u521b\u5efaThread\u5bf9\u8c61\uff0c\u5e76\u8c03\u7528start()\r\n        new Thread(futureTask).start();\r\n\r\n        try {\r\n            \/\/6. \u83b7\u53d6Callable\u4e2d\u7684call\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\r\n            \/\/get()\u8fd4\u56de\u503c\u5373\u4e3aFutureTask\u6784\u9020\u5668\u53c2\u6570Callable\u5b9e\u73b0\u7c7b\u91cd\u5199\u7684call()\u7684\u8fd4\u56de\u503c\r\n            Object sum = futureTask.get();\r\n            System.out.println(\"\u603b\u548c\u4e3a\uff1a\" + sum);\r\n        } catch (InterruptedException e) {\r\n            e.printStackTrace();\r\n        } catch (ExecutionException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[46],"class_list":["post-1060","post","type-post","status-publish","format-standard","hentry","category-java-code","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1060"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1060"}],"version-history":[{"count":2,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1060\/revisions"}],"predecessor-version":[{"id":1063,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1060\/revisions\/1063"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}