{"id":46808,"date":"2024-12-02T17:32:30","date_gmt":"2024-12-02T09:32:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46808\/"},"modified":"2024-12-02T17:32:30","modified_gmt":"2024-12-02T09:32:30","slug":"java-%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e4%b8%ad%e9%80%92%e5%bd%92%e4%bc%98%e5%8c%96%e7%ae%97%e6%b3%95%e6%8e%a2%e8%ae%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46808\/","title":{"rendered":"Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8"},"content":{"rendered":"

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

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8<\/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\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8\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

\u9012\u5f52\u4f18\u5316\u6280\u672f\u5305\u62ec\uff1a1. \u5c3e\u9012\u5f52\u4f18\u5316\uff1a\u6d88\u9664\u9012\u5f52\u8c03\u7528\u7684\u5f00\u9500\uff0c\u5c06\u5c3e\u9012\u5f52\u8f6c\u6362\u4e3a\u5faa\u73af\uff1b2. \u5907\u5fd8\u5f55\uff1a\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\uff0c\u907f\u514d\u91cd\u590d\u8ba1\u7b97\uff1b3. \u6d41\u5f0f\u8ba1\u7b97\uff1a\u4ee5\u60f0\u6027\u65b9\u5f0f\u5904\u7406\u8f93\u5165\uff0c\u907f\u514d\u521b\u5efa\u4e0d\u5fc5\u8981\u7684\u4e34\u65f6\u6570\u636e\u7ed3\u6784\u3002\u5b9e\u6218\u6848\u4f8b\u4e2d\uff0c\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5\u901a\u8fc7\u5c3e\u9012\u5f52\u4f18\u5316\u83b7\u5f97\u4e86\u6027\u80fd\u63d0\u5347\u3002<\/p>\n

\"Java<\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

\u9012\u5f52\u5728\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u7b80\u6d01\u5730\u8868\u793a\u95ee\u9898\u3002\u7136\u800c\uff0c\u9012\u5f52\u7b97\u6cd5\u53ef\u80fd\u5f88\u4f4e\u6548\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u8f93\u5165\u6570\u636e\u8f83\u5927\u65f6\u3002\u4e86\u89e3\u9012\u5f52\u4f18\u5316\u6280\u672f\u5bf9\u4e8e\u5f00\u53d1\u9ad8\u6548\u7684\u51fd\u6570\u5f0f\u7a0b\u5e8f\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

\u4f18\u5316\u6280\u672f<\/strong><\/p>\n

1. \u5c3e\u9012\u5f52\u4f18\u5316<\/strong><\/p>\n

\u5f53\u9012\u5f52\u51fd\u6570\u7684\u6700\u540e\u4e00\u6b65\u662f\u8c03\u7528\u81ea\u8eab\u65f6\uff0c\u5219\u79f0\u4e3a\u5c3e\u9012\u5f52\u3002Java \u5728\u7f16\u8bd1\u65f6\u5c06\u5c3e\u9012\u5f52\u8f6c\u6362\u4e3a\u5faa\u73af\uff0c\u4ece\u800c\u6d88\u9664\u9012\u5f52\u8c03\u7528\u7684\u5f00\u9500\u3002<\/p>\n

\/\/ \u539f\u59cb\u9012\u5f52\u7b97\u6cd5\npublic int factorial(int n) {\n    if (n == 0) {\n        return 1;\n    } else {\n        return n * factorial(n - 1);\n    }\n}\n\n\/\/ \u5c3e\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\npublic int factorialOptimized(int n) {\n    return factorialHelper(n, 1);\n}\n\nprivate int factorialHelper(int n, int acc) {\n    if (n == 0) {\n        return acc;\n    } else {\n        return factorialHelper(n - 1, n * acc);\n    }\n}<\/pre>\n
2. \u5907\u5fd8\u5f55<\/strong><\/p>\n
\u5bf9\u4e8e\u91cd\u590d\u8ba1\u7b97\u76f8\u540c\u8f93\u5165\u7684\u9012\u5f52\u51fd\u6570\uff0c\u5907\u5fd8\u5f55\u53ef\u4ee5\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\u3002\u8fd9\u6709\u52a9\u4e8e\u907f\u514d\u91cd\u590d\u8ba1\u7b97\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
import java.util.HashMap;\nimport java.util.Map;\n\n\/\/ \u539f\u59cb\u9012\u5f52\u7b97\u6cd5\npublic int fibonacci(int n) {\n    if (n <= 1) {\n        return 1;\n    } else {\n        return fibonacci(n - 1) + fibonacci(n - 2);\n    }\n}\n\n\/\/ \u5907\u5fd8\u5f55\u4f18\u5316\u7b97\u6cd5\npublic int fibonacciOptimized(int n) {\n    Map<Integer, Integer> memo = new HashMap<>();\n    return fibonacciHelper(n, memo);\n}\n\nprivate int fibonacciHelper(int n, Map<Integer, Integer> memo) {\n    if (n <= 1) {\n        return 1;\n    } else {\n        Integer memoizedValue = memo.get(n);\n        if (memoizedValue != null) {\n            return memoizedValue;\n        } else {\n            int result = fibonacciHelper(n - 1, memo) + fibonacciHelper(n - 2, memo);\n            memo.put(n, result);\n            return result;\n        }\n    }\n}<\/pre>\n
3. \u6d41\u5f0f\u8ba1\u7b97<\/strong><\/p>\n
\u6d41\u5f0f\u8ba1\u7b97\u53ef\u4ee5\u5229\u7528\u5c3e\u9012\u5f52\u4f18\u5316\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u4ee5\u60f0\u6027\u65b9\u5f0f\u5904\u7406\u8f93\u5165\u3002\u8fd9\u6709\u52a9\u4e8e\u907f\u514d\u521b\u5efa\u4e0d\u5fc5\u8981\u7684\u4e34\u65f6\u6570\u636e\u7ed3\u6784\u3002<\/p>\n
import java.util.stream.Stream;\n\n\/\/ \u539f\u59cb\u9012\u5f52\u7b97\u6cd5\npublic int sum(List<Integer> numbers) {\n    if (numbers.isEmpty()) {\n        return 0;\n    } else {\n        return numbers.get(0) + sum(numbers.subList(1, numbers.size()));\n    }\n}\n\n\/\/ \u6d41\u5f0f\u8ba1\u7b97\u4f18\u5316\u7b97\u6cd5\npublic int sumOptimized(List<Integer> numbers) {\n    return numbers.stream().reduce(0, Integer::sum);\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b\uff1a\u4e8c\u5206\u67e5\u627e<\/strong><\/p>\n
\u4e8c\u5206\u67e5\u627e\u662f\u4e00\u79cd\u9012\u5f52\u7b97\u6cd5\uff0c\u7528\u4e8e\u4ece\u6392\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u7ed9\u5b9a\u7684\u5143\u7d20\u3002<\/p>\n
\/\/ \u539f\u59cb\u9012\u5f52\u7b97\u6cd5\npublic int binarySearch(int[] arr, int target, int low, int high) {\n    if (low > high) {\n        return -1;\n    } else {\n        int mid = (low + high) \/ 2;\n        if (arr[mid] == target) {\n            return mid;\n        } else if (arr[mid] < target) {\n            return binarySearch(arr, target, mid + 1, high);\n        } else {\n            return binarySearch(arr, target, low, mid - 1);\n        }\n    }\n}\n\n\/\/ \u5c3e\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\npublic int binarySearchOptimized(int[] arr, int target, int low, int high) {\n    while (low <= high) {\n        int mid = (low + high) \/ 2;\n        if (arr[mid] == target) {\n            return mid;\n        } else if (arr[mid] < target) {\n            low = mid + 1;\n        } else {\n            high = mid - 1;\n        }\n    }\n    return -1;\n}<\/pre>\n
\u7ed3\u8bba<\/strong><\/p>\n
\u638c\u63e1\u9012\u5f52\u4f18\u5316\u6280\u672f\u5bf9\u4e8e\u7f16\u5199\u9ad8\u6548\u7684\u51fd\u6570\u5f0f\u7a0b\u5e8f\u81f3\u5173\u91cd\u8981\u3002\u5c3e\u9012\u5f52\u4f18\u5316\u3001\u5907\u5fd8\u5f55\u548c\u6d41\u5f0f\u8ba1\u7b97\u90fd\u63d0\u4f9b\u4e86\u63d0\u9ad8\u9012\u5f52\u7b97\u6cd5\u6027\u80fd\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u8ba4\u8bc6\u5230\u8fd9\u4e9b\u6280\u672f\u5e76\u5c06\u5176\u5e94\u7528\u5230\u5b9e\u9645\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u5f00\u53d1\u66f4\u4f18\u5316\u3001\u66f4\u53ef\u6269\u5c55\u7684\u51fd\u6570\u5f0f\u4ee3\u7801\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8ejava,\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8 \u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8\u300b\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\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 \u9012\u5f52\u4f18\u5316\u6280\u672f\u5305\u62ec\uff1a1. \u5c3e\u9012\u5f52\u4f18\u5316\uff1a\u6d88\u9664\u9012\u5f52\u8c03\u7528\u7684\u5f00\u9500\uff0c\u5c06\u5c3e\u9012\u5f52\u8f6c\u6362\u4e3a\u5faa\u73af\uff1b2. \u5907\u5fd8\u5f55\uff1a\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\uff0c\u907f\u514d\u91cd\u590d\u8ba1\u7b97\uff1b3. \u6d41\u5f0f\u8ba1\u7b97\uff1a\u4ee5\u60f0\u6027\u65b9\u5f0f\u5904\u7406\u8f93\u5165\uff0c\u907f\u514d\u521b\u5efa\u4e0d\u5fc5\u8981\u7684\u4e34\u65f6\u6570\u636e\u7ed3\u6784\u3002\u5b9e\u6218\u6848\u4f8b\u4e2d\uff0c\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5\u901a\u8fc7\u5c3e\u9012\u5f52\u4f18\u5316\u83b7\u5f97\u4e86\u6027\u80fd\u63d0\u5347\u3002 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u4f18\u5316\u7b97\u6cd5\u63a2\u8ba8 \u7b80\u4ecb \u9012\u5f52\u5728\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u7b80\u6d01\u5730\u8868\u793a\u95ee\u9898\u3002\u7136\u800c\uff0c\u9012\u5f52\u7b97\u6cd5\u53ef\u80fd\u5f88\u4f4e\u6548\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u8f93\u5165\u6570\u636e\u8f83\u5927\u65f6\u3002\u4e86\u89e3\u9012\u5f52\u4f18\u5316\u6280\u672f\u5bf9\u4e8e\u5f00\u53d1\u9ad8\u6548\u7684\u51fd\u6570\u5f0f\u7a0b\u5e8f\u81f3\u5173\u91cd\u8981\u3002 \u4f18\u5316\u6280\u672f 1. \u5c3e\u9012\u5f52\u4f18\u5316 \u5f53\u9012\u5f52\u51fd\u6570\u7684\u6700\u540e\u4e00\u6b65\u662f\u8c03\u7528\u81ea\u8eab\u65f6\uff0c\u5219\u79f0\u4e3a\u5c3e\u9012\u5f52\u3002Java \u5728\u7f16\u8bd1\u65f6\u5c06\u5c3e\u9012\u5f52\u8f6c\u6362\u4e3a\u5faa\u73af\uff0c\u4ece\u800c\u6d88\u9664\u9012\u5f52\u8c03\u7528\u7684\u5f00\u9500\u3002 \/\/ \u539f\u59cb\u9012\u5f52\u7b97\u6cd5 public int factorial(int n) { if (n == 0) { return 1; } else { return n * factorial(n – 1); } } \/\/ \u5c3e\u9012\u5f52\u4f18\u5316\u7b97\u6cd5 public int factorialOptimized(int n) { return factorialHelper(n, 1); } private int […]<\/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-46808","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46808","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=46808"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46808\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}