does java Readline() method read all Lines ?!

Question

4.00/5 (1 vote)

See more:

hi guys . im developing an android application . this application must return Html Source code .acctualy it connects to a web site and must return its Html Source .
But It returns something difrent !
it jumps from some lines ! it does'nt read all of them , i dont know , maybe it just reads pair lines !
i have 30 lines in Source Code but it shows only 14 of them !
i will show you my java code, the Html and the output at the end .
pls look at it and help me .

Here This is my java Code :

Java

public class MainActivity extends Activity {	
	
	protected String ShowHtml()
	{
		//TextView myTxt=(TextView)findViewById(R.id.txtReturn); 
		   int LineCounter=0;
		HttpURLConnection urlConnection = null;
		String line="";
		try
		{
	    URL myUrl=new URL("http://10.0.2.2:80/mob1/Default.aspx");
	//	URL myUrl=new URL("http://tabnak.ir");
		urlConnection = (HttpURLConnection)myUrl.openConnection();		
		BufferedReader in = new BufferedReader (new InputStreamReader(urlConnection.getInputStream()));		
     
		while(in.readLine()!=null)
		{			
			line=line+in.readLine().toString();		
			LineCounter++;
		}
	
	
		}
		catch(Exception ex0)
		{
		Log.d("Error : ",ex0.toString());

		}
		finally
		{
			if(urlConnection!=null){urlConnection.disconnect(); }
			
			
		}
		int Count=line.length();
		return line="Count: "+String.valueOf(Count)+"Line Counter"+LineCounter+"/ Start XML : "+line;
		
	}	
	
	class RetrieveFeedTask extends AsyncTask<String, Void, String> {

	    

	    protected String doInBackground(String... urls) {
	    	try
	    	{
	        return ShowHtml();
	    	}
	    	catch(Exception e)
	    	{
	    	return e.toString();
	    	}
	    }

	    protected void onPostExecute(String Result) {
	    	TextView mytxt2=(TextView)findViewById(R.id.txtReturn);
	    	mytxt2.setText(Result);
	      
	    }
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		new RetrieveFeedTask().execute();
	}

	

}

Html Source Code :

HTML

<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
	Hello
</title></head>
<body>
<form name="form1" method="post" action="Default.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJNzgzNDMwNTMzZGRE1XcQ3ivQexlso8SYFW5dafVfqQ==" />
</div>


<div>
<div>position2</div> 
<div>position3</div> 
<div>position4</div> 
<div>position5</div> 
<div>position6</div>
<div>position7</div> 
<div>position8</div> 
 
   
</div>


</form>
</body>
</html>

Application Output :

HTML

<head><title>
</title></head>
<form name="form1" method="post" action="Default.aspx" id="form1">
<div> 
<div>position3</div>
<div>position5</div>
<div>position7</div>
</div>
</body>

Posted 14-Dec-14 2:58am

seyed mahmud shahrokni

Updated 14-Dec-14 3:12am

Richard MacCutchan

v5

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Accepted Answer · 2014-12-14T03:19:00

Solution 1

Java

while(in.readLine()!=null) {			
    line=line+in.readLine().toString();		
    LineCounter++;
}

You read a line (in the while statement), but you do not save it anywhere. Then you read the next line and add it to your variable. Then you go back and read another line which you ignore, etc, etc.

Posted 14-Dec-14 3:19am

Richard MacCutchan

Comments

Maciej Los 14-Dec-14 9:22am

+5

Richard MacCutchan 14-Dec-14 9:31am

Thanks, took me a few minutes to spot it though.

seyed mahmud shahrokni 14-Dec-14 9:34am

tnx man . you are my personal hero !

Richard MacCutchan 14-Dec-14 10:00am

Happy to help. We all learn something from these questions.