Java wont Integer.parseInt(string)

Question

This is my site: http://daniandroid.honor.es/getAllCustomers.php when you visit the site, you get a simple text "500".

OK.

 final ourHTTP hi = new ourHTTP();

        out_string = hi.getWebPage("http://daniandroid.honor.es/getAllCustomers.php");

getWebPage returns the string(content).

 int veriff = Integer.parseInt(out_string);

         if(veriff>1)
         {
             final_form.setText("ya");
         }

final_form is a TextView on my xml file (activity_second.xml)

Application will crash. ERROR:

at com.android.interval.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)

Caused by: java.lang.NumberFormatException: Invalid int: "500"
at java.lang.Integer.parse(Integer.java:375)

If I replace the out_string with this

out_string= "500";

everything is good.

My getAllCustomers.php files contains (source):

<?php
echo"500";
?>

Here is also the method to get the content.

public String getWebPage(String adress)
{
    HttpClient httpClient = new DefaultHttpClient();
    HttpGet httpGet = new HttpGet();

    InputStream inputStream = null;
    String response = null;


    try{
        URI uri = new URI(adress);
        httpGet.setURI(uri);

        HttpResponse httpResponse = httpClient.execute(httpGet);


        inputStream = httpResponse.getEntity().getContent();
        Reader reader = new InputStreamReader(inputStream, "UTF-8");
        int inChar;
        StringBuffer stringBuffer = new StringBuffer();

        while((inChar = reader.read()) != -1){

            stringBuffer.append((char)inChar);
        }

        response = stringBuffer.toString();

    }catch(ClientProtocolException e)
    {
        Log.e(adress, "error");
    }catch(IOException e)
    {
        Log.e(response, "error");
        //
    }catch(URISyntaxException e)
    {
        Log.e(response, "error"); 
    }

    return response;
    }

Are you perhaps getting ""500"" returned from the PHP file instead of an expected String literal? — andrewdleach
– andrewdleach, Commented Aug 20, 2015 at 20:14
if you visit the site it will appear 500, also if you view source of page it will appear 500 — Xan
– Xan, Commented Aug 20, 2015 at 20:17
Try Integer.parseInt(out_string.replaceAll("[\\D]",""));. I think your HTTP lib passes some non-decimal chars along with the output. — iTurki
– iTurki, Commented Aug 20, 2015 at 20:19

iTurki · Accepted Answer · 2015-08-20 20:35:46Z

1

As discussed in the comments:

I think your HTTP lib passes some non-decimal chars along with the output. Try this:

int veriff = Integer.parseInt(out_string.replaceAll("[\\D]",""));

Where [\\D] is a regex denote any non-decimal character.

edited Aug 20, 2015 at 20:35

answered Aug 20, 2015 at 20:32

iTurki

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1 Comment

user370305 Over a year ago

Yupp.. Nice catch.. +1. Need to handle junk characters also.

user370305 · Accepted Answer · 2015-08-20 20:29:43Z

1

May be possible your response contains "" internally in String, Just replace ""

So do it like,

out_string = hi.getWebPage("http://daniandroid.honor.es/getAllCustomers.php");

if(out_string.contains("\"")) // change according to your response, if it contains other charcter
{
 out_string = out_string.replace("\"", "")
}

try
{
 int veriff = Integer.parseInt(out_string);

 if(veriff>1)
 {
  final_form.setText("ya");
 } 
}catch(NumberFormatException ex)
{
   // Handle exception
}

I would suggest you to handle Exception also, May be if you have other invalid character in your resposnse..

edited Aug 20, 2015 at 20:29

answered Aug 20, 2015 at 20:15

user370305

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1 Comment

user370305 Over a year ago

@Aakash - Than what is the reason? Before do downvote just read question carefully, OP get response with 500..

Jim Ward · Accepted Answer · 2015-08-20 20:28:05Z

0

For the version of Java you are running against examine the code. java.lang.Integer.parse(Integer.java:375)

Crudely using Firebug and examining the response
I see "ï»¿500" which is certainly more than the "500" I would have expected.

answered Aug 20, 2015 at 20:28

Jim Ward

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