[4744] in java-interest
How can I check End Of File?
daemon@ATHENA.MIT.EDU (Kyungsoon Park)
Fri Jan 12 06:51:10 1996
Date: Fri, 12 Jan 1996 19:05:54 +0900
To: java-interest@java.sun.com
From: Kyungsoon Park <sosarian@bae.nuri.net>
Hi,
How can I check the End Of File?
There is no keyword EOF or eof.
try{
String FileName="111";
URL url=new URL(getDocumentBase(), FileName);
int pp=0;
try
{
DataInputStream ff=new DataInputStream(url.openStream());
while (nextLine(ff)!=null)
{
g.drawString(Integer.toString(pp), pp*10+30, 100);
pp++;
}
} catch (IOException e) { }
//nextLine method read a line from a file with readLine() method.
It occurs an "java.lang.NullPointerException" error.
It displays from 0 to 42(total 43 lines, it's right) and then occurs the error.
What's my problem?
What is the best way to check the end of file?
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