{"id":264005,"date":"2024-05-15T15:24:04","date_gmt":"2024-05-15T07:24:04","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/264005.html"},"modified":"2024-05-15T15:24:16","modified_gmt":"2024-05-15T07:24:16","slug":"java-%e5%ae%9e%e7%8e%b0%e5%86%92%e6%b3%a1%e6%8e%92%e5%ba%8f%e7%9a%84%e4%bb%a3%e7%a0%81%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/264005.html","title":{"rendered":"Java \u5b9e\u73b0\u5192\u6ce1\u6392\u5e8f\u7684\u4ee3\u7801\u600e\u4e48\u5199"},"content":{"rendered":"

\"Java<\/p>\n

\u5192\u6ce1\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5b83\u901a\u8fc7\u591a\u6b21\u6bd4\u8f83\u548c\u4ea4\u6362\u76f8\u90bb\u5143\u7d20\u7684\u4f4d\u7f6e\u6765\u5b9e\u73b0\u6392\u5e8f\u3002Java \u5b9e\u73b0\u5192\u6ce1\u6392\u5e8f\u7684\u5173\u952e\u6b65\u9aa4\u5305\u62ec\uff1a\u904d\u5386\u6570\u7ec4\u3001\u6bd4\u8f83\u76f8\u90bb\u5143\u7d20\u3001\u4ea4\u6362\u4f4d\u7f6e\u3001\u91cd\u590d\u76f4\u81f3\u6392\u5e8f\u5b8c\u6210<\/strong>\u3002\u5728Java\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u53cc\u5c42\u5faa\u73af\u548c\u4e34\u65f6\u53d8\u91cf\u5b8c\u6210\u8fd9\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n

\u4e0b\u9762\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u901a\u8fc7Java\u4ee3\u7801\u5b9e\u73b0\u5192\u6ce1\u6392\u5e8f\u7b97\u6cd5\uff1a<\/p>\n<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u5fc5\u987b\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\uff0c\u8fd9\u662f\u901a\u8fc7\u5916\u5c42\u5faa\u73af\u5b8c\u6210\u7684\u3002\u5185\u5c42\u5faa\u73af\u4f1a\u9488\u5bf9\u6bcf\u4e00\u4e2a\u672a\u6392\u5e8f\u7684\u5143\u7d20\u6267\u884c\u6bd4\u8f83\u548c\u53ef\u80fd\u7684\u4f4d\u7f6e\u4ea4\u6362\u64cd\u4f5c\u3002\u5982\u679c\u5728\u6bd4\u8f83\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u524d\u4e00\u4e2a\u5143\u7d20\u6bd4\u540e\u4e00\u4e2a\u5143\u7d20\u5927\uff0c\u5c31\u9700\u8981\u4ea4\u6362\u8fd9\u4e24\u4e2a\u5143\u7d20\u7684\u4f4d\u7f6e\uff0c\u5b8c\u6210\u4e00\u6b21\u5192\u6ce1\u64cd\u4f5c\u3002\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u76f4\u81f3\u6574\u4e2a\u6570\u7ec4\u5b8c\u5168\u6709\u5e8f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u8bbe\u7f6e\u4ea4\u6362\u6807\u5fd7<\/p>\n<\/p>\n

\u4e3a\u4e86\u63d0\u9ad8\u6392\u5e8f\u6548\u7387\uff0c\u8bbe\u7f6e\u4e00\u4e2a\u6807\u5fd7\u53d8\u91cfswapped<\/code>\uff0c\u7528\u4e8e\u5728\u6bcf\u4e00\u8f6e\u904d\u5386\u4e2d\u5224\u65ad\u6570\u7ec4\u662f\u5426\u7ecf\u8fc7\u4ea4\u6362\uff0c\u5982\u679c\u6ca1\u6709\u4ea4\u6362\u5219\u8868\u793a\u6570\u7ec4\u5df2\u7ecf\u662f\u6709\u5e8f\u7684\uff0c\u6b64\u65f6\u5c31\u53ef\u4ee5\u9000\u51fa\u6392\u5e8f\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n

public static void bubbleSort(int[] array) {<\/p>\n
    if(array == null || array.length <= 1) {<\/p>\n
        return;<\/p>\n
    }<\/p>\n
    boolean swapped;<\/p>\n
    for(int i = 0; i < array.length - 1; i++) {<\/p>\n
        swapped = false;<\/p>\n
        for(int j = 0; j < array.length - 1 - i; j++) {<\/p>\n
            if(array[j] > array[j+1]) {<\/p>\n
                int temp = array[j];<\/p>\n
                array[j] = array[j+1];<\/p>\n
                array[j+1] = temp;<\/p>\n
                swapped = true;<\/p>\n
            }<\/p>\n
        }<\/p>\n
        if(!swapped){<\/p>\n
            break;<\/p>\n
        }<\/p>\n
    }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f18\u5316\u5192\u6ce1\u6392\u5e8f<\/p>\n<\/p>\n
\u9664\u4e86\u8bbe\u7f6e\u4ea4\u6362\u6807\u5fd7\u4ee5\u5916\uff0c\u8fd8\u53ef\u4ee5\u8bb0\u5f55\u904d\u5386\u4e2d\u6700\u540e\u4e00\u6b21\u4ea4\u6362\u7684\u4f4d\u7f6e\uff0c\u8be5\u4f4d\u7f6e\u540e\u7684\u5143\u7d20\u5728\u4e0b\u4e00\u8f6e\u6392\u5e8f\u65f6\u4e0d\u5fc5\u518d\u6bd4\u8f83\uff0c\u56e0\u4e3a\u90fd\u5df2\u7ecf\u662f\u6709\u5e8f\u7684\u4e86\u3002<\/p>\n<\/p>\n
public static void optimizedBubbleSort(int[] array) {<\/p>\n
    if(array == null || array.length <= 1) {<\/p>\n
        return;<\/p>\n
    }<\/p>\n
    int lastSwappedIndex;<\/p>\n
    int swapBorder = array.length - 1;<\/p>\n
    for(int i = 0; i < array.length - 1; i++) {<\/p>\n
        lastSwappedIndex = 0; \/\/\u91cd\u7f6e\u6700\u540e\u4e00\u6b21\u4ea4\u6362\u4f4d\u7f6e\u7684\u7d22\u5f15<\/p>\n
        for(int j = 0; j < swapBorder; j++) {<\/p>\n
            if(array[j] > array[j+1]) {<\/p>\n
                int temp = array[j];<\/p>\n
                array[j] = array[j+1];<\/p>\n
                array[j+1] = temp;<\/p>\n
                lastSwappedIndex = j; \/\/ \u66f4\u65b0\u6700\u540e\u4e00\u6b21\u4ea4\u6362\u7684\u4f4d\u7f6e<\/p>\n
            }<\/p>\n
        }<\/p>\n
        swapBorder = lastSwappedIndex;<\/p>\n
        if(swapBorder == 0){<\/p>\n
            break;<\/p>\n
        }<\/p>\n
    }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u4f1a\u8fdb\u4e00\u6b65\u5256\u6790\u5192\u6ce1\u6392\u5e8f\u7684\u5185\u90e8\u5de5\u4f5c\u539f\u7406\u3001\u65f6\u95f4\u590d\u6742\u5ea6\u3001\u7a7a\u95f4\u590d\u6742\u5ea6<\/strong>\u53ca\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/strong>\u3002\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u4f1a\u63d0\u4f9b\u4ee3\u7801\u4f18\u5316\u6280\u5de7<\/strong>\u548c\u5192\u6ce1\u6392\u5e8f\u7684\u53d8\u79cd<\/strong>\u6765\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u8fd0\u7528\u8fd9\u4e00\u7b97\u6cd5\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5982\u4f55\u5728Java\u4e2d\u5199\u5192\u6ce1\u6392\u5e8f\u7684\u4ee3\u7801\uff1f<\/strong><\/p>\n
    \n
  1. \u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2aJava\u7c7b\u6765\u5b9e\u73b0\u5192\u6ce1\u6392\u5e8f\u7b97\u6cd5\u3002<\/li>\n
  2. \u5728\u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u63a5\u53d7\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\u3002<\/li>\n
  3. \u5728\u9759\u6001\u65b9\u6cd5\u4e2d\u4f7f\u7528\u4e24\u4e2a\u5d4c\u5957\u7684for\u5faa\u73af\u6765\u6bd4\u8f83\u548c\u4ea4\u6362\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n
  4. \u5916\u5faa\u73af\u63a7\u5236\u6bd4\u8f83\u7684\u6b21\u6570\uff0c\u5185\u5faa\u73af\u7528\u4e8e\u6bd4\u8f83\u76f8\u90bb\u7684\u5143\u7d20\u5e76\u4ea4\u6362\u5b83\u4eec\u7684\u4f4d\u7f6e\u3002<\/li>\n
  5. \u5982\u679c\u5f53\u524d\u5143\u7d20\u6bd4\u4e0b\u4e00\u4e2a\u5143\u7d20\u5927\uff0c\u5c31\u4ea4\u6362\u5b83\u4eec\u7684\u4f4d\u7f6e\u3002<\/li>\n
  6. \u7ee7\u7eed\u8fdb\u884c\u4e0b\u4e00\u8f6e\u7684\u6bd4\u8f83\uff0c\u76f4\u5230\u6ca1\u6709\u53d1\u751f\u4ea4\u6362\u4e3a\u6b62\uff0c\u8bf4\u660e\u6570\u7ec4\u5df2\u7ecf\u6392\u5e8f\u5b8c\u6210\u3002<\/li>\n
  7. \u8fd4\u56de\u6392\u5e8f\u597d\u7684\u6574\u6570\u6570\u7ec4\u3002<\/li>\n<\/ol>\n
    \u5192\u6ce1\u6392\u5e8f\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f\u591a\u5c11\uff1f<\/strong><\/p>\n
    \u5192\u6ce1\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5176\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(n^2)\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u6700\u574f\u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u8fdb\u884c(n-1)\u6b21\u6bd4\u8f83\u548c(n-1)\u6b21\u4ea4\u6362\uff0c\u5176\u4e2dn\u662f\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u56e0\u6b64\uff0c\u5192\u6ce1\u6392\u5e8f\u7684\u6548\u7387\u5bf9\u4e8e\u5927\u578b\u6570\u636e\u96c6\u662f\u76f8\u5bf9\u8f83\u4f4e\u7684\u3002<\/p>\n
    \u9664\u4e86\u5192\u6ce1\u6392\u5e8f\uff0c\u8fd8\u6709\u54ea\u4e9b\u5e38\u7528\u7684\u6392\u5e8f\u7b97\u6cd5\uff1f<\/strong><\/p>\n
    \u9664\u4e86\u5192\u6ce1\u6392\u5e8f\u4ee5\u5916\uff0c\u8fd8\u6709\u5f88\u591a\u5176\u4ed6\u5e38\u7528\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n
      \n
    • \u63d2\u5165\u6392\u5e8f\uff1a\u5c06\u6570\u7ec4\u5206\u4e3a\u5df2\u6392\u5e8f\u548c\u672a\u6392\u5e8f\u4e24\u90e8\u5206\uff0c\u6bcf\u6b21\u4ece\u672a\u6392\u5e8f\u90e8\u5206\u9009\u62e9\u4e00\u4e2a\u5143\u7d20\u63d2\u5165\u5230\u5df2\u6392\u5e8f\u90e8\u5206\u7684\u9002\u5f53\u4f4d\u7f6e\u3002<\/li>\n
    • \u5feb\u901f\u6392\u5e8f\uff1a\u9009\u62e9\u4e00\u4e2a\u57fa\u51c6\u5143\u7d20\uff0c\u5c06\u6570\u7ec4\u5206\u6210\u4e24\u4e2a\u5b50\u6570\u7ec4\uff0c\u6bd4\u57fa\u51c6\u5143\u7d20\u5c0f\u7684\u653e\u5728\u5de6\u8fb9\uff0c\u6bd4\u57fa\u51c6\u5143\u7d20\u5927\u7684\u653e\u5728\u53f3\u8fb9\uff0c\u7136\u540e\u5bf9\u5b50\u6570\u7ec4\u8fdb\u884c\u9012\u5f52\u6392\u5e8f\u3002<\/li>\n
    • \u5f52\u5e76\u6392\u5e8f\uff1a\u5c06\u6570\u7ec4\u4e0d\u65ad\u5206\u6210\u8f83\u5c0f\u7684\u5b50\u6570\u7ec4\uff0c\u76f4\u5230\u6bcf\u4e2a\u5b50\u6570\u7ec4\u53ea\u6709\u4e00\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u4e0d\u65ad\u5408\u5e76\u8fd9\u4e9b\u5b50\u6570\u7ec4\uff0c\u76f4\u5230\u5408\u5e76\u4e3a\u4e00\u4e2a\u6709\u5e8f\u7684\u6570\u7ec4\u3002<\/li>\n
    • \u9009\u62e9\u6392\u5e8f\uff1a\u4ece\u6570\u7ec4\u4e2d\u9009\u62e9\u6700\u5c0f\u7684\u5143\u7d20\uff0c\u5e76\u5c06\u5176\u653e\u5728\u7b2c\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u7136\u540e\u7ee7\u7eed\u5728\u5269\u4f59\u7684\u672a\u6392\u5e8f\u90e8\u5206\u9009\u62e9\u6700\u5c0f\u7684\u5143\u7d20\uff0c\u4ee5\u6b64\u7c7b\u63a8\uff0c\u76f4\u5230\u6574\u4e2a\u6570\u7ec4\u6392\u5e8f\u5b8c\u6210\u3002<\/li>\n
    • \u5806\u6392\u5e8f\uff1a\u5c06\u6570\u7ec4\u89c6\u4e3a\u4e8c\u53c9\u5806\uff0c\u5e76\u901a\u8fc7\u91cd\u590d\u5220\u9664\u6700\u5927\u5143\u7d20\u5e76\u5c06\u5176\u653e\u5728\u6570\u7ec4\u672b\u5c3e\u7684\u65b9\u5f0f\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n
      \u8fd9\u4e9b\u6392\u5e8f\u7b97\u6cd5\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u7684\u6548\u7387\u548c\u9002\u7528\u6027\u90fd\u6709\u6240\u4e0d\u540c\uff0c\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6392\u5e8f\u7b97\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5192\u6ce1\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5b83\u901a\u8fc7\u591a\u6b21\u6bd4\u8f83\u548c\u4ea4\u6362\u76f8\u90bb\u5143\u7d20\u7684\u4f4d\u7f6e\u6765\u5b9e\u73b0\u6392\u5e8f\u3002Java \u5b9e\u73b0\u5192\u6ce1\u6392\u5e8f\u7684\u5173\u952e\u6b65\u9aa4\u5305 […]","protected":false},"author":3,"featured_media":264016,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/264005"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=264005"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/264005\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/264016"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=264005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=264005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=264005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}