java 文件最后一行,如何使用java读取文本文件中的最后一行

I am making a log and I want to read the last line of the log.txt file, but I'm having trouble getting the BufferedReader to stop once the last line is read.

Here's my code:

try {

String sCurrentLine;

br = new BufferedReader(new FileReader("C:\\testing.txt"));

while ((sCurrentLine = br.readLine()) != null) {

System.out.println(sCurrentLine);

}

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

if (br != null)br.close();

} catch (IOException ex) {

ex.printStackTrace();

}

}

解决方案

Here's a good solution.

In your code, you could just create an auxiliary variable called lastLine and constantly reinitialize it to the current line like so:

String lastLine = "";

while ((sCurrentLine = br.readLine()) != null)

{

System.out.println(sCurrentLine);

lastLine = sCurrentLine;

}