Output Problem

[Ekrem Altintas]

The code is executing the while-loop once and I can not see result of this statement: System.out.println(satir);



import java.io.*;
import java.net.*;
import java.lang.*;
import java.sql.*;
import java.util.regex.*;
import java.util.*;

public class Derlemeproblem{

public static void main(String args[]) throws IOException
{
URL local = new URL("http://localhost/phpmyadmin/hey.html");
URLConnection baglanti = local.openConnection();


BufferedReader oku = new BufferedReader(new InputStreamReader(baglanti.getInputStream()));


try
{

String satir;
int u,boy;
char[] kelime = new char[2500];
boolean kucuk=false;
u=0;

while ((satir = oku.readLine()) != null)
{

u=satir.length();

boy=0;

if(u!=0&u!=-1)
{
while(boy<u)
{
kar=satir.charAt(boy);

if(kar=='<')
{
kucuk=true;

}

else if(kar=='>')
{
kucuk=false;

}

if(kucuk==false)
{
if (satir.charAt(boy+1)!='<')
{
kelime[boy]=satir.charAt(boy+1);
System.out.println("YAZ "+kelime[boy]);
}
else
{
kucuk=true;
boy=boy+1;
kelime[boy]=' ';
System.out.println("YAZ "+kelime[boy]);
}

}
boy=boy+1;
}

}
System.out.println(satir);
}

}
catch(Exception e)
{
// System.err.println ("Cannot connect to database server");
}

}
}

[Paul Clapham]

Let's format that code so it might be understood:

import java.io.*;
import java.net.*;
import java.lang.*;
import java.sql.*;
import java.util.regex.*;
import java.util.*;
 
public class Derlemeproblem{
 
public static void main(String args[]) throws IOException
{
  URL local = new URL("http://localhost/phpmyadmin/hey.html");
  URLConnection baglanti = local.openConnection();
 
  BufferedReader oku = new BufferedReader(new InputStreamReader(baglanti.getInputStream()));
 
  try
  {
 
    String satir;
    int u,boy;
    char[] kelime = new char[2500];
    boolean kucuk=false;
    u=0;
 
    while ((satir = oku.readLine()) != null)
    {
 
      u=satir.length();
 
      boy=0;
 
      if(u!=0&u!=-1)
      {
        while(boy<u)
        {
          kar=satir.charAt(boy);
 
          if(kar=='<')
          {
            kucuk=true;
          }
          else if(kar=='>')
          {
            kucuk=false;
          }
 
          if(kucuk==false)
          {
            if (satir.charAt(boy+1)!='<')
            {
              kelime[boy]=satir.charAt(boy+1);
              System.out.println("YAZ "+kelime[boy]);
            }
            else
            {
              kucuk=true;
              boy=boy+1;
              kelime[boy]=' ';
              System.out.println("YAZ "+kelime[boy]);
            }
          }
          boy=boy+1;
        }
 
      }
      System.out.println(satir);
    }
 
  }
  catch(Exception e)
  {
    // System.err.println ("Cannot connect to database server");
  }
 
}
}

[Paul Clapham]

Okay. You said

The code is executing the while-loop once and I can not see result of this statement: System.out.println(satir);

Well, there are two while-loops in that code. But if you do not see the result of System.out.println(satir) then there are a few possibilities:

1. When you print it, the variable satir is all blanks, or it has zero length.

2. There is no data returned from that input stream, so the outer while-loop is actually executed zero times.

3. The code throws an exception, which you ignore.

I bet on #3, but not a large amount of money. I could be wrong. At least change your catch block to report errors when they occur:

  catch(Exception e)
  {
    e.printStackTrace();
  }

[Ekrem Altintas]

Thanks for your help.I solved the problem.