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[java] I'm having a file reading problem.

Started by Keim Apr 20, 2002 at 1:26 AM 5 replies 250+ views

Original Post

Apr 20, 2002 at 1:26 AM

I was wondering if someone could help me out with a text file reading program. It''s supposed to read the file line by line, and print a set of tokens for each line. But it seems to only be outputting the first line of text. And yet at the point where it''s gathering the data it reads the entire 7 lines. I''ve been trying to debug it, but I just can''t figure it out. ICQ: 11451528 AIM: KhesioN I''d really appreciate the help. It''s getting frustrating. Thanks RMK

HenryApe

Apr 20, 2002 at 4:44 AM

Time to post some code me thinks.

fodd3r

Apr 20, 2002 at 4:49 AM

Yes, code would really help! There are a few ways to take in input from a file, so it seeing your code is important.

Keim

Author

Keim

Apr 20, 2002 at 7:54 PM

Okay. I wasn''t sure if it was polite to post a lot of code in here. I''ll just post the method I believe I''m having the problem with:

public static void countWordOccurrence(Vector text, String fname)
{
int i, match = 0;
String line, word;
StringTokenizer tokenizer;

try
{
FileReader fr = new FileReader(fname);
BufferedReader inFile = new BufferedReader(fr);

line = inFile.readLine();
while(line != null)
{
tokenizer = new StringTokenizer(line);

while(tokenizer.hasMoreTokens())
{
word = tokenizer.nextToken();
word = word.toLowerCase();

if( word.charAt(word.length()-1) == ''.'' ||
word.charAt(word.length()-1) == ''?'' ||
word.charAt(word.length()-1) == '','' ||
word.charAt(word.length()-1) == ''!'' )
{
word = word.substring(0, word.length()-1);
}

if(text.size() == 0)
{
text.addElement(new Data(word, 0));
}
else
{
for(i = 0; i < text.size(); i++)
{
if(((Data)text.elementAt(i)).str_type.equals(word))
{
((Data)text.elementAt(i)).data++;
match = 1;
}
}

if(match == 0)
{
text.addElement(new Data(word, 0));
}
}
}
System.out.println("\n<<< LINE END >>>");
line = inFile.readLine();
}
inFile.close();
}
catch(FileNotFoundException Exception)
{
System.out.println("Specified file could not be found.");
}
catch(IOException Exception)
{
System.out.println("Specified file could not be opened.");
}
}

RMK

Keim

Author

Keim

Apr 20, 2002 at 7:56 PM

...it doesn''t like leading spaces I suppose. This might look better.

public static void countWordOccurrence(Vector text, String fname)
{
int i, match = 0;
String line, word;
StringTokenizer tokenizer;

try
{
FileReader fr = new FileReader(fname);
BufferedReader inFile = new BufferedReader(fr);

line = inFile.readLine();
while(line != null)
{
tokenizer = new StringTokenizer(line);

while(tokenizer.hasMoreTokens())
{
word = tokenizer.nextToken();
word = word.toLowerCase();

if( word.charAt(word.length()-1) == ''.'' ||
word.charAt(word.length()-1) == ''?'' ||
word.charAt(word.length()-1) == '','' ||
word.charAt(word.length()-1) == ''!'' )
{
word = word.substring(0, word.length()-1);
}

if(text.size() == 0)
{
text.addElement(new Data(word, 0));
}
else
{
for(i = 0; i < text.size(); i++)
{
if(((Data)text.elementAt(i)).str_type.equals(word))
{
((Data)text.elementAt(i)).data++;
match = 1;
}
}

if(match == 0)
{
text.addElement(new Data(word, 0));
}
}
}
System.out.println("\n<<< LINE END >>>");
line = inFile.readLine();
}
inFile.close();
}
catch(FileNotFoundException Exception)
{
System.out.println("Specified file could not be found.");
}
catch(IOException Exception)
{
System.out.println("Specified file could not be opened.");
}
}

RMK