{"id":939,"date":"2022-10-15T18:02:02","date_gmt":"2022-10-15T10:02:02","guid":{"rendered":"https:\/\/qaqaq.top\/?p=939"},"modified":"2022-11-27T12:39:52","modified_gmt":"2022-11-27T04:39:52","slug":"%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86-finally%e7%9a%84%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=939","title":{"rendered":"\u5f02\u5e38\u5904\u7406-finally\u7684\u4f7f\u7528"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P376;\r\n\r\nimport java.io.File;\r\nimport java.io.FileInputStream;\r\nimport java.io.FileNotFoundException;\r\nimport java.io.IOException;\r\n\r\nimport org.junit.Test;\r\n\r\n\/*\r\n * try-catch-finally\u4e2dfinally\u7684\u4f7f\u7528\uff1a\r\n * \r\n * \r\n * 1. finally\u662f\u53ef\u9009\u7684\r\n * \r\n * 2. finally\u4e2d\u58f0\u660e\u7684\u662f\u4e00\u5b9a\u4f1a\u88ab\u6267\u884c\u7684\u4ee3\u7801\u3002\u5373\u4f7fcatch\u4e2d\u53c8\u51fa\u73b0\u5f02\u5e38\u4e86\uff0ctry\u4e2d\u6709return\u8bed\u53e5\uff0cchath\u4e2d\u6709\r\n * return\u8bed\u53e5\u7b49\u60c5\u51b5\u3002\r\n * \r\n * 3. \u50cf\u6570\u636e\u5e93\u8fde\u63a5\u3001\u8f93\u5165\u8f93\u51fa\u6d41\u3001\u7f51\u7edc\u7f16\u7a0bSocket\u7b49\u8d44\u6e90\uff0cJVM\u662f\u4e0d\u80fd\u81ea\u52a8\u7684\u56de\u6536\u7684\uff0c\u6211\u4eec\u9700\u8981\u81ea\u5df1\u624b\u52a8\u7684\u8fdb\u884c\u8d44\u6e90\u7684\r\n * \t\t\u91ca\u653e\u3002\u6b64\u65f6\u7684\u8d44\u6e90\u91ca\u653e\uff0c\u5c31\u9700\u8981\u58f0\u660e\u5728finally\u4e2d\u3002\r\n * \r\n * \r\n * \r\n * \r\n *\/\r\npublic class FinallyTest {\r\n\r\n\t@Test\r\n\tpublic void test2() {\r\n\t\tFileInputStream fis = null;\r\n\t\ttry {\r\n\t\t\tFile file = new File(\"hello1.txt\");\r\n\t\t\tfis = new FileInputStream(file);\r\n\r\n\t\t\tint data = fis.read();\r\n\t\t\twhile (data != -1) {\r\n\t\t\t\tSystem.out.print((char) data);\r\n\t\t\t\tdata = fis.read();\r\n\t\t\t}\r\n\r\n\t\t} catch (FileNotFoundException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t} catch (IOException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t} finally {\r\n\t\t\ttry {\r\n\t\t\t\tif (fis != null)\r\n\t\t\t\t\tfis.close();\r\n\t\t\t} catch (IOException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t@Test\r\n\tpublic void testMethod() {\r\n\t\tint num = method();\r\n\t\tSystem.out.println(num);\r\n\t}\r\n\r\n\tpublic int method() {\r\n\r\n\t\ttry {\r\n\t\t\tint&#91;] arr = new int&#91;10];\r\n\t\t\tSystem.out.println(arr&#91;10]);\r\n\t\t\treturn 1;\r\n\t\t} catch (ArrayIndexOutOfBoundsException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t\treturn 2;\r\n\t\t} finally {\r\n\t\t\tSystem.out.println(\"\u6211\u4e00\u5b9a\u4f1a\u88ab\u6267\u884c\");\r\n\t\t\treturn 3;\r\n\t\t}\r\n\t}\r\n\r\n\t@Test\r\n\tpublic void test1() {\r\n\t\ttry {\r\n\t\t\tint a = 10;\r\n\t\t\tint b = 0;\r\n\t\t\tSystem.out.println(a \/ b);\r\n\r\n\t\t} catch (ArithmeticException e) {\r\n\t\t\te.printStackTrace();\r\n\r\n\/\/\t\t\tint&#91;] arr = new int&#91;10];\r\n\/\/\t\t\tSystem.out.println(arr&#91;10]);\r\n\r\n\t\t} catch (Exception e) {\r\n\t\t\te.printStackTrace();\r\n\t\t}\r\n\/\/\t\tSystem.out.println(\"\u6211\u597d\u5e05\u554a\uff01\uff01\uff01~~\");\r\n\r\n\t\tfinally {\r\n\t\t\tSystem.out.println(\"\u6211\u597d\u5e05\u554a~~\");\r\n\t\t}\r\n\t}\r\n}\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[46],"class_list":["post-939","post","type-post","status-publish","format-standard","hentry","category-java-code","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/939"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=939"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/939\/revisions"}],"predecessor-version":[{"id":940,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/939\/revisions\/940"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}