高手帮忙看下啊
import *; public class IODemo4
{
public static void main(String[] args)
{
try
{
File file = new File ("f:\\java\\source.txt");
int sizeL = (int)file.length();
int chars_read = 0;
BufferedReader in =new BufferedReader( new FileReader("f:\\java\\source.txt"));
char[] data = new char[sizeL];
while(in.ready())
{
chars_read += in.read(data, chars_read, sizeL - chars_read);
}
String temp="";
for(int j=0;j<chars_read;j++)
temp+=data[j];
String newtemp=temp.replace("tihuan","g");
in.close();
PrintWriter out =new PrintWriter(
new FileWriter("f:\\java\\destnation1.txt"));
out.println(newtemp);
out.close();
}
catch(Exception e) {}
}
}
为什么字符没有替换呢?