生成BufferedReader对象的方法：
BufferedReader in=new BufferedReader(new FileReader("foo.in"));
import java.io*;
class Test
{
public static void main(String args[])
{
FileReader fileReader=null;
BufferedReader bufferedReader=null;
try
{
fileReader=new FileReader("e:/src/users.txt");
bufferedReader=new BufferedReader(fileReader);
String line=null;
while(true)
{
line=bufferedReader.readline();
if(line==null)break;
System.out.println(line);
}
}
catch(Exception e)
{
System.out.println(e);
}
finally
{
try{
}
catch(Exception e)
{
System.out.println(e);
}
}
}
}