Why does my program not read full files?
- by user593395
I have written code in Java to read the content of a file. But it is working for small line of file only not for more than 1000 line of file. Please tell me me what error I have made in the below program.
program:
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class aaru
{
public static void main(String args[]) throws FileNotFoundException
{
File sourceFile = new File("E:\\parser\\parse3.txt");
File destinationFile = new File("E:\\parser\\new.txt");
FileInputStream fileIn = new FileInputStream(sourceFile);
FileOutputStream fileOut = new FileOutputStream(destinationFile);
DataInputStream dataIn = new DataInputStream(fileIn);
DataOutputStream dataOut = new DataOutputStream(fileOut);
String str="";
String[] st;
String sub[]=null;
String word="";
String contents="";
String total="";
String stri="";;
try
{
while((contents=dataIn.readLine())!=null)
{
total = contents.replaceAll(",","");
String str1=total.replaceAll("--","");
String str2=str1.replaceAll(";","" );
String str3=str2.replaceAll("&","" );
String str4=str3.replaceAll("^","" );
String str5=str4.replaceAll("#","" );
String str6=str5.replaceAll("!","" );
String str7=str6.replaceAll("/","" );
String str8=str7.replaceAll(":","" );
String str9=str8.replaceAll("]","" );
String str10=str9.replaceAll("\\?","");
String str11=str10.replaceAll("\\*","");
String str12=str11.replaceAll("\\'","");
Pattern pattern = Pattern.compile("\\s+", Pattern.CASE_INSENSITIVE | Pattern.DOTALL | Pattern.MULTILINE);
Matcher matcher = pattern.matcher(str12);
//boolean check = matcher.find();
String result=str12;
Pattern p=Pattern.compile("^www\\.|\\@");
Matcher m=p.matcher(result);
stri = m.replaceAll(" ");
int i;
int j;
st=stri.split("\\.");
for(i=0;i<st.length;i++)
{
st[i]=st[i].trim();
/*if(st[i].startsWith(" "))
st[i]=st[i].substring(1,st[i].length);*/
sub=st[i].split(" ");
if(sub.length>1)
{
for(j=0;j<sub.length-1;j++)
{
word = word+sub[j]+","+sub[j+1]+"\r\n";
}
}
else
{
word = word+st[i]+"\r\n";
}
}
}
System.out.println(word);
dataOut.writeBytes(word+"\r\n");
fileIn.close();
fileOut.close();
dataIn.close();
dataOut.close();
}
catch(Exception e)
{
System.out.print(e);
}
}
}
