{"id":264845,"date":"2024-05-15T15:50:56","date_gmt":"2024-05-15T07:50:56","guid":{"rendered":""},"modified":"2024-05-15T15:51:02","modified_gmt":"2024-05-15T07:51:02","slug":"java-%e6%ba%90%e4%bb%a3%e7%a0%81%e4%b8%ad%e6%9c%89%e5%93%aa%e4%ba%9b%e5%b8%b8%e8%a7%81%e7%9a%84%e7%bc%96%e7%a0%81%e8%a7%84%e8%8c%83","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/264845.html","title":{"rendered":"Java \u6e90\u4ee3\u7801\u4e2d\u6709\u54ea\u4e9b\u5e38\u89c1\u7684\u7f16\u7801\u89c4\u8303"},"content":{"rendered":"

\"Java<\/p>\n

\u5728Java\u6e90\u4ee3\u7801\u4e2d\uff0c\u5e38\u89c1\u7684\u7f16\u7801\u89c4\u8303\u5305\u62ec\u7c7b\u540d\u4f7f\u7528\u5927\u9a7c\u5cf0\u547d\u540d\u6cd5\u3001\u53d8\u91cf\u4e0e\u65b9\u6cd5\u540d\u4f7f\u7528\u5c0f\u9a7c\u5cf0\u547d\u540d\u6cd5\u3001\u5e38\u91cf\u540d\u5168\u7528\u5927\u5199\u5b57\u6bcd\u548c\u4e0b\u5212\u7ebf\u7ec4\u5408\u3001\u5408\u7406\u7684\u7f29\u8fdb\u548c\u7a7a\u884c\u6765\u589e\u52a0\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u6ce8\u91ca\u5e94\u5f53\u7b80\u6d01\u660e\u4e86\u4e14\u76f8\u5173\u3001\u9075\u5b88\u4e00\u81f4\u7684\u5927\u62ec\u53f7\u98ce\u683c\u3001\u9650\u5236\u5355\u884c\u4ee3\u7801\u957f\u5ea6\u3001\u907f\u514d\u8fc7\u957f\u7684\u65b9\u6cd5\u548c\u7c7b\u5b9a\u4e49\u3001\u5408\u7406\u4f7f\u7528\u7a7a\u683c\u5206\u9694\u4ee3\u7801\u5143\u7d20<\/strong>\u3002\u5c55\u5f00\u6765\u8bb2\uff0c\u7c7b\u540d\u4f7f\u7528\u5927\u9a7c\u5cf0\u547d\u540d\u6cd5<\/strong>\u662fJava\u4e2d\u6700\u57fa\u7840\u7684\u7f16\u7801\u89c4\u8303\u4e4b\u4e00\uff0c\u5b83\u8981\u6c42\u6bcf\u4e2a\u5355\u8bcd\u7684\u9996\u5b57\u6bcd\u5747\u5927\u5199\uff0c\u800c\u5176\u4ed6\u5b57\u6bcd\u5c0f\u5199\uff0c\u4f8b\u5982MyClass<\/code>\u3001CustomerService<\/code>\u3001OrderProcessor<\/code>\u7b49\u3002\u8fd9\u6837\u505a\u4e0d\u4ec5\u4f7f\u5f97\u7c7b\u7684\u540d\u79f0\u66f4\u6613\u8bfb\uff0c\u800c\u4e14\u7b26\u5408Java\u793e\u533a\u7684\u4e60\u60ef\uff0c\u6709\u52a9\u4e8e\u5176\u4ed6\u5f00\u53d1\u8005\u66f4\u5feb\u5730\u7406\u89e3\u548c\u7ef4\u62a4\u4ee3\u7801\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u547d\u540d\u89c4\u8303<\/strong><\/h2>\n<\/p>\n

\u547d\u540d\u89c4\u8303\u662f\u4efb\u4f55\u7f16\u7a0b\u8bed\u8a00\u4e2d\u6700\u57fa\u672c\u7684\u89c4\u8303\u4e4b\u4e00\uff0c\u5b83\u6709\u52a9\u4e8e\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n

\u53d8\u91cf\u548c\u65b9\u6cd5\u547d\u540d<\/strong><\/h3>\n<\/p>\n

\u53d8\u91cf\u548c\u65b9\u6cd5\u5728Java\u4e2d\u5e94\u4f7f\u7528\u5c0f\u9a7c\u5cf0\u547d\u540d\u6cd5\uff0c\u4e5f\u5c31\u662f\u7b2c\u4e00\u4e2a\u5355\u8bcd\u7684\u9996\u5b57\u6bcd\u5c0f\u5199\uff0c\u540e\u7eed\u5355\u8bcd\u7684\u9996\u5b57\u6bcd\u5927\u5199\u3002\u6bd4\u5982 localVariable<\/code>\u3001readData<\/code>\u3001printOutput<\/code>\u3002\u8fd9\u79cd\u547d\u540d\u65b9\u5f0f\u6709\u52a9\u4e8e\u533a\u5206\u7c7b\u540d\u548c\u53d8\u91cf\u6216\u65b9\u6cd5\u540d\u3002<\/p>\n<\/p>\n

\u5e38\u91cf\u547d\u540d<\/strong><\/h3>\n<\/p>\n

\u5e38\u91cf\u547d\u540d\u9700\u8981\u5168\u90e8\u4f7f\u7528\u5927\u5199\u5b57\u6bcd\uff0c\u5355\u8bcd\u4e4b\u95f4\u901a\u8fc7\u4e0b\u5212\u7ebf\u8fde\u63a5\u3002\u4f8b\u5982\uff1aMAX_SIZE<\/code>\u3001DEFAULT_VALUE<\/code>\u3002\u8fd9\u6837\u7684\u547d\u540d\u65b9\u5f0f\u4f7f\u5f97\u5e38\u91cf\u5728\u4ee3\u7801\u4e2d\u975e\u5e38\u663e\u773c\uff0c\u4e00\u773c\u5c31\u53ef\u4ee5\u5206\u8fa8\u51fa\u5b83\u4e0e\u53d8\u91cf\u7684\u4e0d\u540c\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u4ee3\u7801\u683c\u5f0f<\/strong><\/h2>\n<\/p>\n

\u5408\u7406\u7684\u4ee3\u7801\u683c\u5f0f\u4e0d\u4ec5\u80fd\u63d0\u5347\u4ee3\u7801\u7684\u7f8e\u89c2\u5ea6\uff0c\u800c\u4e14\u8fd8\u80fd\u4f7f\u4ee3\u7801\u66f4\u52a0\u6613\u4e8e\u9605\u8bfb\u548c\u7ef4\u62a4\u3002<\/p>\n<\/p>\n

\u7a7a\u884c\u548c\u7f29\u8fdb<\/strong><\/h3>\n<\/p>\n

\u4e3a\u4e86\u4f7f\u4ee3\u7801\u7ed3\u6784\u6e05\u6670\uff0c\u5e94\u8be5\u9002\u5f53\u4f7f\u7528\u7a7a\u884c\u6765\u5206\u9694\u903b\u8f91\u5757\u3002\u540c\u65f6\uff0c\u6bcf\u4e00\u7ea7\u8bed\u53e5\u5e94\u8be5\u9002\u5f53\u7f29\u8fdb\uff0c\u901a\u5e38\u662f\u56db\u4e2a\u7a7a\u683c\u3002\u8fd9\u6709\u52a9\u4e8e\u6807\u8bc6\u4ee3\u7801\u7684\u5c42\u6b21\u7ed3\u6784\uff0c\u662f\u826f\u597d\u7f16\u7801\u4e60\u60ef\u7684\u4f53\u73b0\u3002<\/p>\n<\/p>\n

\u5927\u62ec\u53f7\u98ce\u683c<\/strong><\/h3>\n<\/p>\n

\u5728Java\u4e2d\uff0c\u5927\u62ec\u53f7\u53ef\u4ee5\u91c7\u7528K&R\u98ce\u683c\uff08\u5f00\u62ec\u53f7\u5728\u58f0\u660e\u8bed\u53e5\u672b\u5c3e\uff09\u6216\u662fAllman\u98ce\u683c\uff08\u5f00\u62ec\u53f7\u81ea\u6210\u4e00\u884c\uff09\u3002\u91cd\u8981\u7684\u662f\u9879\u76ee\u4e2d\u5e94\u4fdd\u6301\u4e00\u81f4\u7684\u98ce\u683c\uff0c\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

\/\/ K&R style<\/p>\n
if (condition) {<\/p>\n
    \/\/ statements<\/p>\n
}<\/p>\n
\/\/ Allman style<\/p>\n
if (condition)<\/p>\n
{<\/p>\n
    \/\/ statements<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u6ce8\u91ca\u89c4\u8303<\/strong><\/h2>\n<\/p>\n
\u826f\u597d\u7684\u6ce8\u91ca\u80fd\u591f\u5e2e\u52a9\u4eba\u4eec\u5feb\u901f\u7406\u89e3\u4ee3\u7801\u7684\u610f\u56fe\uff0c\u6ce8\u91ca\u89c4\u8303\u5bf9\u4e8e\u4fdd\u6301\u4ee3\u7801\u8d28\u91cf\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/p>\n
\u7b80\u6d01\u660e\u4e86\u7684\u6ce8\u91ca<\/strong><\/h3>\n<\/p>\n
\u6ce8\u91ca\u5e94\u8be5\u7b80\u6d01\u800c\u4e14\u660e\u4e86\uff0c\u5c3d\u91cf\u907f\u514d\u5197\u957f\u4e14\u65e0\u7528\u7684\u63cf\u8ff0\u3002\u5b83\u5e94\u8be5\u8bf4\u660e\u4ee3\u7801\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\u5199\uff0c\u800c\u975e\u600e\u6837\u5199\u7684\u3002\u5bf9\u4e8e\u7b80\u5355\u660e\u4e86\u7684\u4ee3\u7801\uff0c\u6ce8\u91ca\u53ef\u80fd\u5e76\u4e0d\u662f\u5fc5\u9700\u7684\u3002<\/p>\n<\/p>\n
\u4f7f\u7528Javadoc<\/strong><\/h3>\n<\/p>\n
Javadoc\u662fJava\u7684\u5b98\u65b9\u6587\u6863\u6ce8\u91ca\u683c\u5f0f\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u7f16\u5199\u683c\u5f0f\u5316\u7684\u6ce8\u91ca\uff0cIDE\u548c\u5176\u4ed6\u5de5\u5177\u53ef\u4ee5\u7528\u8fd9\u4e9b\u6ce8\u91ca\u751f\u6210\u6587\u6863\u3002Javadoc\u6ce8\u91ca\u5e94\u5f53\u88ab\u7528\u4e8e\u6bcf\u4e2a\u516c\u5171\u7c7b\u548c\u65b9\u6cd5\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
\/<\/p>\n
 * \u8fd9\u4e2a\u65b9\u6cd5\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u6574\u6570\u7684\u548c\u3002<\/p>\n
 *<\/p>\n
 * @param a \u7b2c\u4e00\u4e2a\u52a0\u6570<\/p>\n
 * @param b \u7b2c\u4e8c\u4e2a\u52a0\u6570<\/p>\n
 * @return \u8fd4\u56de\u4e24\u4e2a\u52a0\u6570\u7684\u548c<\/p>\n
 *\/<\/p>\n
public int add(int a, int b) {<\/p>\n
    return a + b;<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u4ee3\u7801\u957f\u5ea6\u4e0e\u7a7a\u683c<\/strong><\/h2>\n<\/p>\n
\u63a7\u5236\u4ee3\u7801\u884c\u7684\u957f\u5ea6\u548c\u5408\u7406\u4f7f\u7528\u7a7a\u683c\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u8fd8\u80fd\u907f\u514d\u5728\u67d0\u4e9b\u73af\u5883\u4e0b\u7684\u663e\u793a\u95ee\u9898\u3002<\/p>\n<\/p>\n
\u9650\u5236\u5355\u884c\u4ee3\u7801\u957f\u5ea6<\/strong><\/h3>\n<\/p>\n
\u5355\u884c\u4ee3\u7801\u957f\u5ea6\u5e94\u8be5\u6709\u9650\u5236\uff0c\u901a\u5e38\u63a8\u8350\u4e0d\u8d85\u8fc780-120\u4e2a\u5b57\u7b26\u3002\u8fc7\u957f\u7684\u4ee3\u7801\u884c\u4f1a\u5bfc\u81f4\u9605\u8bfb\u548c\u7406\u89e3\u4e0a\u7684\u56f0\u96be\uff0c\u5c24\u5176\u662f\u5728\u5c0f\u5c4f\u5e55\u6216\u5206\u5c4f\u7f16\u8f91\u65f6\u3002<\/p>\n<\/p>\n
\u7a7a\u683c\u7684\u4f7f\u7528<\/strong><\/h3>\n<\/p>\n
\u5728\u64cd\u4f5c\u7b26\uff08\u5982 =<\/code>, +<\/code>, -<\/code> \u7b49\uff09\u7684\u4e24\u8fb9\u5e94\u5f53\u6dfb\u52a0\u4e00\u4e2a\u7a7a\u683c\uff0c\u8fd9\u6837\u53ef\u4ee5\u4f7f\u5f97\u8868\u8fbe\u5f0f\u66f4\u52a0\u6e05\u6670\u3002\u53e6\u5916\uff0c\u5728\u9017\u53f7\u540e\u9762\u52a0\u4e00\u4e2a\u7a7a\u683c\u4e5f\u662f\u4e00\u4e2a\u597d\u4e60\u60ef\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
int sum = a + b;<\/p>\n
String message = "Hello," + userName;<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u907f\u514d\u590d\u6742\u4e0e\u5197\u957f\u7684\u6784\u9020<\/strong><\/h2>\n<\/p>\n
\u4ee3\u7801\u5e94\u5f53\u5c3d\u91cf\u4fdd\u6301\u7b80\u6d01\uff0c\u907f\u514d\u8fc7\u5ea6\u590d\u6742\u548c\u5197\u957f\u7684\u7ed3\u6784\uff0c\u8fd9\u52a9\u4e8e\u4ed6\u4eba\u9605\u8bfb\u548c\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u9650\u5236\u65b9\u6cd5\u957f\u5ea6<\/strong><\/h3>\n<\/p>\n
\u4e00\u4e2a\u65b9\u6cd5\u5e94\u8be5\u5c3d\u91cf\u4fdd\u6301\u7b80\u77ed\uff0c\u5efa\u8bae\u4e0d\u8d85\u8fc720\u884c\u3002\u8fc7\u957f\u7684\u65b9\u6cd5\u901a\u5e38\u610f\u5473\u7740\u5b83\u505a\u4e86\u592a\u591a\u7684\u4e8b\u60c5\uff0c\u5e94\u8be5\u8003\u8651\u62c6\u5206\u4e3a\u51e0\u4e2a\u66f4\u5c0f\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u5408\u7406\u5212\u5206\u7c7b\u4e0e\u63a5\u53e3<\/strong><\/h3>\n<\/p>\n
\u7c7b\u548c\u63a5\u53e3\u4e0d\u5e94\u5f53\u8fc7\u5ea6\u81a8\u80c0\uff0c\u5e94\u8be5\u6839\u636e\u804c\u8d23\u8fdb\u884c\u5212\u5206\u3002\u575a\u6301\u5355\u4e00\u804c\u8d23\u539f\u5219\u80fd\u591f\u4fdd\u6301\u4ee3\u7801\u7684\u6e05\u6670\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u9075\u5faa\u8fd9\u4e9b\u5e38\u89c1\u7684\u7f16\u7801\u89c4\u8303\u5c06\u6709\u52a9\u4e8e\u7ef4\u62a4Java\u6e90\u4ee3\u7801\u7684\u4e13\u4e1a\u6027\u3001\u6e05\u6670\u5ea6\u548c\u4e00\u81f4\u6027\u3002\u4e0d\u4ec5\u4f7f\u5f97\u4ee3\u7801\u5bf9\u5f53\u524d\u5f00\u53d1\u8005\u6765\u8bf4\u6613\u4e8e\u7ba1\u7406\uff0c\u4e5f\u6709\u52a9\u4e8e\u672a\u6765\u7684\u7ef4\u62a4\u5de5\u4f5c\uff0c\u5305\u62ec\u65b0\u56e2\u961f\u6210\u5458\u7684\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
1. Java\u6e90\u4ee3\u7801\u4e2d\u5e38\u89c1\u7684\u7f16\u7801\u89c4\u8303\u6709\u54ea\u4e9b\uff1f<\/strong><\/p>\n
\u7f16\u7801\u89c4\u8303\u5bf9\u4e8eJava\u6e90\u4ee3\u7801\u7684\u7f16\u5199\u975e\u5e38\u91cd\u8981\uff0c\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5e38\u89c1\u7684\u7f16\u7801\u89c4\u8303\uff1a<\/p>\n