{"id":31207,"date":"2023-08-26T04:06:04","date_gmt":"2024-02-20T18:11:38","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%ef%bc%8cppap%e3%80%82\/"},"modified":"2025-08-12T22:50:18","modified_gmt":"2025-08-12T14:50:18","slug":"%e5%9c%a8java%e4%b8%ad%ef%bc%8cppap%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%ef%bc%8cppap%e3%80%82\/","title":{"rendered":"\u5728Java\u4e2d\uff0cPPAP"},"content":{"rendered":"<p>\u56e0\u4e3a\u521a\u597d\u5728\u7535\u89c6\u5e7f\u544a\u4e2d\u64ad\u653e\u4e86PPAP\u6b4c\u66f2\u3002<\/p>\n<h2>\u5b9a\u4e49\u4e00\u4e2aenum<\/h2>\n<pre class=\"post-pre\"><code>enum PPAP_STATE {\r\n    UNKNOWN,\r\n    PEN,\r\n    PINEAPPLE,\r\n    APPLE,\r\n    PPAP;\r\n\r\n    static PPAP_STATE getState(PPAP_STATE state, int talking) {\r\n        if (state == UNKNOWN &amp;&amp; talking == 0) {\r\n            return PEN;\r\n        } else if (state == PEN &amp;&amp; talking == 1) {\r\n            return PINEAPPLE;\r\n        } else if (state == PINEAPPLE &amp;&amp; talking == 2) {\r\n            return APPLE;\r\n        } else if (state == APPLE &amp;&amp; talking == 0) {\r\n            return PPAP;\r\n        } else {\r\n            return UNKNOWN;\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<h2>\u5904\u7406\u90e8\u5206<\/h2>\n<p>\u6709\u4e86enum\u7684\u5e2e\u52a9\uff0c\u4e3b\u8981\u5904\u7406\u53d8\u5f97\u6e05\u6670\u7b80\u6d01\uff01<\/p>\n<pre class=\"post-pre\"><code>PPAP_STATE state = PPAP_STATE.UNKNOWN;\r\nRandom random = new Random();\r\n\r\nwhile (true) {\r\n    int talking = random.nextInt(3);\r\n    Log.i(\"talk: \", new String[]{\"\u30da\u30f3\", \"\u30d1\u30a4\u30ca\u30c3\u30d7\u30eb\", \"\u30a2\u30c3\u30d7\u30eb\"}[talking]);\r\n\r\n    state = PPAP_STATE.getState(state, talking);\r\n    if (state == PPAP_STATE.PPAP) {\r\n        Log.i(\"finish: \", \"Pen Pineapple Apple Pen!\");\r\n        break;\r\n    }\r\n}\r\n<\/code><\/pre>\n<h2>Outcome.<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d0b4d37434c4406be5f52\/7-0.png\" alt=\"Screenshot_1479921556.png\" \/><\/div>\n<h2>\u8ffd\u52a0\u4fe1\u606f<\/h2>\n<p>\u5b9e\u9645\u4e0a\uff0c\u6211\u672c\u60f3\u7528switch\u8bed\u53e5\u6765\u5904\u7406PPAP_STATE.getState()\u7684\u64cd\u4f5c&#8230;<\/p>\n<pre class=\"post-pre\"><code>switch(int a, int b) {\r\n    case (0, 0):\r\n        \/\/ do\r\n    case (1, 1):\r\n        \/\/ do\r\n    default:\r\n        \/\/ do\r\n}\r\n<\/code><\/pre>\n<p>\u6211\u4e0d\u61c2\u5f97\u5982\u4f55\u7528Java\u7f16\u5199\u8fd9\u79cd\u5f62\u5f0f\uff0c\u6240\u4ee5\u653e\u5f03\u4e86&#8230;<\/p>\n<h2>GitHub\u4ee3\u7801\u7247\u6bb5<\/h2>\n<h2>\u8bf7\u63d0\u4f9b\u66f4\u591a\u4e0a\u4e0b\u6587\u4fe1\u606f\u6216\u5f85\u8f6c\u8ff0\u7684\u5185\u5bb9\u3002<\/h2>\n<p>\u4f7f\u7528Swift3\u5b9e\u73b0PPAP\u7684\u529f\u80fd<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56e0\u4e3a\u521a\u597d\u5728\u7535\u89c6\u5e7f\u544a\u4e2d\u64ad\u653e\u4e86PPAP\u6b4c\u66f2\u3002 \u5b9a\u4e49\u4e00\u4e2aenum enum PPAP_STATE { UNKNOWN [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31207","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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