Java file operations Daquan 1: the establishment of documents, checks and delete
Abstract: Java file operations Daquan 1: the establishment of documents, checks and delete
</ Td> </ tr> <tr> <td width="443" height="35" valign="top" class="ArticleTeitle"> <% @ page contentType = "text / html; gb2312 charset ="% >
<% @ Page import = "java.io. *"%>
<head>
</ Head>
<body>
<%
String path = request.getRealPath ( "/ article/article5a/example/filetest");
Out.println (path + "
");
File f = new File (path, "File.txt");
Out.println (f + "
");
/ / Out.println (f.exists ());
If (f.exists ()){// check whether there File.txt
F.delete ();// delete documents File.txt
Out.println (path + "\ \ File.txt exist, has been deleted.");
Else ()
F.createNewFile ();// under the current directory creation of a document entitled File.txt
Out.println (path + "\ \ File.txt did not exist, the current output has been established 。");// the directory path
)
%>
</ Td> <td width="264" valign="top" class="ArticleTeitle">
</ Td> </ tr> <tr> <td height="25" colspan="2" valign="top" class="ArticleTeitle">
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Tags: File, java documents