java中IO对文件读写操作
本文转载自：http://www.blogjava.net/duduli/archive/2008/10/06/232662.htmljava中很多关于文件读取的工作。
操作也很平凡。
所以java的文件读取是很重要的一部分。
首先是单字节的读取工作。
见源代码：
java中很多关于文件读取的工作。
操作也很平凡。
所以java的文件读取是很重要的一部分。
首先是单字节的读取工作。
见源代码：
<div style="padding-right: 5px; padding-left: 4px; font-size: 13px; border-left-color: #cccccc; padding-bottom: 4px; width: 98%; padding-top: 4px; background-color: #eeeeee;"> 1http://www.agoit.com/Images/OutliningIndicators/None.gifpackage ReadFile;
2http://www.agoit.com/Images/OutliningIndicators/None.gif
3http://www.agoit.com/Images/OutliningIndicators/None.gifimport java.io.FileReader;
4http://www.agoit.com/Images/OutliningIndicators/None.gifimport java.io.IOException;
5http://www.agoit.com/Images/OutliningIndicators/None.gif
6http://www.agoit.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.agoit.com/Images/OutliningIndicators/ContractedBlock.gifpublic class readFile http://www.blogjava.net/Images/dot.gif{
7http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.agoit.com/Images/OutliningIndicators/ContractedSubBlock.gif public static void readfile(String file)http://www.blogjava.net/Images/dot.gif{
8http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.agoit.com/Images/OutliningIndicators/ContractedSubBlock.gif tryhttp://www.blogjava.net/Images/dot.gif{
9http://www.agoit.com/Images/OutliningIndicators/InBlock.gif FileReader fr = new FileReader(file);
10http://www.agoit.com/Images/OutliningIndicators/InBlock.gif int ch = 0;
11http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.agoit.com/Images/OutliningIndicators/ContractedSubBlock.gif while((ch=fr.read())!=-1)http://www.blogjava.net/Images/dot.gif{
12http://www.agoit.com/Images/OutliningIndicators/InBlock.gif System.out.println((char)ch);
13http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
14http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.agoit.com/Images/OutliningIndicators/ContractedSubBlock.gif }catch(IOException e)http://www.blogjava.net/Images/dot.gif{
15http://www.agoit.com/Images/OutliningIndicators/InBlock.gif e.printStackTrace();
16http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
17http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
18http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.agoit.com/Images/OutliningIndicators/ContractedSubBlock.gif public static void main(String[] args) http://www.blogjava.net/Images/dot.gif{
19http://www.agoit.com/Images/OutliningIndicators/InBlock.gif readfile("e:\\dd.txt");
20http://www.agoit.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
21http://www.agoit.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
页:
[1]