{"id":203017,"date":"2025-05-22T08:41:55","date_gmt":"2025-05-22T00:41:55","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203017\/"},"modified":"2025-05-22T08:41:55","modified_gmt":"2025-05-22T00:41:55","slug":"%e5%87%bd%e6%95%b0%e5%bc%8fjava%e7%bc%96%e7%a8%8b%e5%af%b9%e5%9b%be%e5%83%8f%e5%a4%84%e7%90%86%e7%ae%97%e6%b3%95%e5%8f%91%e5%b1%95%e6%96%b9%e5%90%91%e7%9a%84%e6%80%9d%e8%80%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203017\/","title":{"rendered":"\u51fd\u6570\u5f0fJava\u7f16\u7a0b\u5bf9\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u53d1\u5c55\u65b9\u5411\u7684\u601d\u8003"},"content":{"rendered":"

<\/b> <\/p>\n

\u51fd\u6570\u5f0fJava\u7f16\u7a0b\u5bf9\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u53d1\u5c55\u65b9\u5411\u7684\u601d\u8003<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u51fd\u6570\u5f0fJava\u7f16\u7a0b\u5bf9\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u53d1\u5c55\u65b9\u5411\u7684\u601d\u8003\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u6b63\u8f6c\u5411\u51fd\u6570\u5f0f\u7f16\u7a0b\uff0c\u5e26\u6765\u4f18\u52bf\uff1a\u5e76\u53d1\u6027\uff1a\u7eaf\u51fd\u6570\u53ef\u5b89\u5168\u5e76\u884c\u6267\u884c\u3002\u53ef\u6d4b\u8bd5\u6027\uff1a\u4e0d\u53ef\u53d8\u6570\u636e\u7b80\u5316\u6d4b\u8bd5\u3002\u53ef\u91cd\u7528\u6027\uff1a\u9ad8\u9636\u51fd\u6570\u4fbf\u4e8e\u4ee3\u7801\u5757\u5305\u88c5\u548c\u91cd\u7528\u3002\u8fd9\u79cd\u53d8\u9769\u5c06\u4fc3\u8fdb\u7b97\u6cd5\u7684\uff1a\u9ad8\u6548\u5e76\u884c\u5316\u53ef\u7ef4\u62a4\u6027\u63d0\u5347\u5f00\u53d1\u5468\u671f\u52a0\u5feb<\/p>\n

<\/p>\n

\u51fd\u6570\u5f0f Java \u7f16\u7a0b\u5bf9\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u53d1\u5c55\u65b9\u5411\u7684\u601d\u8003<\/h2>\n

\u5f15\u8a00<\/strong><\/p>\n

\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u6b63\u7ecf\u5386\u4e00\u573a\u4ece\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b (OOP) \u5230\u51fd\u6570\u5f0f\u7f16\u7a0b (FP) \u7684\u53d8\u9769\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u4f18\u52bf\uff0c\u8fd9\u4e9b\u4f18\u52bf\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u7684\u6548\u7387\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4f18\u52bf<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6838\u5fc3\u539f\u5219\u5305\u62ec\uff1a<\/p>\n

    \n
  • \u7eaf\u51fd\u6570\uff1a\u4e0d\u4f1a\u4ea7\u751f\u526f\u4f5c\u7528\u6216\u4fee\u6539\u53ef\u53d8\u72b6\u6001\u3002<\/li>\n
  • \u4e0d\u53ef\u53d8\u6570\u636e\uff1a\u6570\u636e\u7ed3\u6784\u5728\u521b\u5efa\u540e\u4e0d\u53ef\u66f4\u6539\u3002<\/li>\n
  • \u9ad8\u9636\u51fd\u6570\uff1a\u53ef\u4ee5\u63a5\u53d7\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u51fd\u6570\u3002<\/li>\n<\/ul>\n

    \u8fd9\u4e9b\u539f\u5219\u5e26\u6765\u4e86\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n

      \n
    • \u5e76\u53d1\u6027\uff1a<\/strong> \u7eaf\u51fd\u6570\u53ef\u4ee5\u5b89\u5168\u5730\u5728\u5e76\u884c\u73af\u5883\u4e2d\u6267\u884c\u3002<\/li>\n
    • \u53ef\u6d4b\u8bd5\u6027\uff1a<\/strong> \u4e0d\u53ef\u53d8\u6570\u636e\u4f7f\u6d4b\u8bd5\u66f4\u5bb9\u6613\uff0c\u56e0\u4e3a\u60a8\u53ef\u4ee5\u786e\u4fe1\u6570\u636e\u5728\u6d4b\u8bd5\u671f\u95f4\u4e0d\u4f1a\u6539\u53d8\u3002<\/li>\n
    • \u53ef\u91cd\u7528\u6027\uff1a<\/strong> \u9ad8\u9636\u51fd\u6570\u5141\u8bb8\u60a8\u5c06\u4ee3\u7801\u5757\u5305\u88c5\u6210\u51fd\u6570\uff0c\u5e76\u5c06\u5176\u8f7b\u677e\u5730\u7ec4\u5408\u548c\u91cd\u7528\u3002<\/li>\n<\/ul>\n

      \u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

      \u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u8fdb\u884c\u56fe\u50cf\u5904\u7406\u7684\u5177\u4f53\u6848\u4f8b\uff1a<\/p>\n

      import java.awt.image.BufferedImage;\nimport java.util.stream.IntStream;\n\n\/\/ \u9608\u503c\u5316\u56fe\u50cf\uff08\u5c06\u50cf\u7d20\u503c\u8f6c\u6362\u4e3a 0 \u6216 255\uff09\npublic static BufferedImage threshold(BufferedImage image, int threshold) {\n    BufferedImage result = new BufferedImage(image.getWidth(), image.getHeight(), image.getType());\n    IntStream.range(0, image.getWidth())\n            .forEach(x -> IntStream.range(0, image.getHeight())\n                    .forEach(y -> result.setRGB(x, y, image.getRGB(x, y) < threshold ? 0 : 255)));\n    return result;\n}<\/pre>\n
      \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cthreshold<\/code> \u51fd\u6570\u4f7f\u7528 Java 8 \u6d41\u6765\u5e76\u884c\u5730\u5904\u7406\u56fe\u50cf\u50cf\u7d20\u3002\u8fd9\u79cd\u51fd\u6570\u5f0f\u65b9\u6cd5\u6bd4\u4f20\u7edf\u7684\u9762\u5411\u5bf9\u8c61\u5faa\u73af\u6548\u7387\u66f4\u9ad8\uff0c\u5e76\u4e14\u66f4\u6613\u4e8e\u6d4b\u8bd5\u548c\u7ef4\u62a4\u3002<\/p>\n
      \u53d1\u5c55\u65b9\u5411<\/strong><\/p>\n
      \u51fd\u6570\u5f0f\u7f16\u7a0b paradigm \u7684\u5174\u8d77\u4e3a\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u7684\u53d1\u5c55\u65b9\u5411\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u7684\u601d\u8003\uff1a<\/p>\n
        \n
      • \u9ad8\u6548\u5e76\u884c\u5316\uff1a<\/strong> \u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u901a\u5e38\u8ba1\u7b97\u5bc6\u96c6\u578b\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u53ef\u4ee5\u5229\u7528\u591a\u6838\u5904\u7406\u5668\u5feb\u901f\u6267\u884c\u8fd9\u4e9b\u7b97\u6cd5\u3002<\/li>\n
      • \u66f4\u9ad8\u7684\u53ef\u7ef4\u62a4\u6027\uff1a<\/strong> \u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\u4f7f\u4ee3\u7801\u66f4\u6613\u4e8e\u7406\u89e3\u548c\u8c03\u8bd5\u3002<\/li>\n
      • \u66f4\u5feb\u7684\u5f00\u53d1\u5468\u671f\uff1a<\/strong> \u9ad8\u9636\u51fd\u6570\u548c\u51fd\u6570\u7ec4\u5408\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u5feb\u901f\u4e14\u8f7b\u677e\u5730\u6784\u5efa\u548c\u4fee\u6539\u7b97\u6cd5\u3002<\/li>\n<\/ul>\n
        \u968f\u7740\u51fd\u6570\u5f0f\u7f16\u7a0b\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u6211\u4eec\u53ef\u4ee5\u9884\u671f\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u5c06\u53d8\u5f97\u66f4\u52a0\u9ad8\u6548\u3001\u53ef\u7ef4\u62a4\u548c\u53ef\u6269\u5c55\u3002<\/p>\n
        \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u51fd\u6570\u5f0fJava\u7f16\u7a0b\u5bf9\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\u53d1\u5c55\u65b9\u5411\u7684\u601d\u8003\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ejava,\u56fe\u50cf\u5904\u7406\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u51fd\u6570\u5f0fJava\u7f16\u7a0b\u5bf9\u56fe\u50cf\u5904\u7406\u7b97\u6cd5...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203017","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203017","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203017"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203017\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}