compare String[] and crash app

Question

I have a big problem... I want check if S1[1] is empty. is populated dynamically but I want to know when it is full or when it is empty

public class MainActivity extends FragmentActivity  {
public String[] S1 = new String[200];
....

btnArrivi.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                 try {

                     if(S1[1].equals(""))
                     Toast.makeText(MainActivity.this, S1[1]
                            , Toast.LENGTH_LONG).show();

                    .....
                     Fragment a = Check(S1); 

                 }

            }
     });

My application crashes. I have tried :

f(S1[1].isEmpty(""))

My logcat doesn't work on eclipse... :( If I delete:

if(S1[1].equals(""))
Toast.makeText(MainActivity.this, S1[1], Toast.LENGTH_LONG).show();

My application works... can you help me please?

If S1 isn't empty, works. Thank you!

EDIT: logcat:

    05-09 07:35:48.655: E/chromium(3421): [ERROR:chrome_browser_main_android.cc(130)] Not implemented reached in void RecordBreakpadStatusUMA(MetricsService*)
05-09 07:35:49.460: E/Nova.Workspace(2867): The Hotseat screen must be >= 0 and < 1 (was 1); skipping child
05-09 07:35:49.465: E/Nova.Workspace(2867): The Hotseat screen must be >= 0 and < 1 (was 2); skipping child
05-09 07:35:50.630: E/RestStorages(2827): using folders=/storage/extSdCard/Musica/
05-09 07:35:51.150: E/FbInjectorInitializer(3510): Multi-binding Key[type=com.facebook.common.init.INeedInit, annotation=[none]] wasn't declared.

possible duplicate of [Unfortunately MyApp has stopped. How can I solve this?](http://stackoverflow.com/questions/23353173/unfortunately-myapp-has-stopped-how-can-i-solve-this) — Code-Apprentice, May 14 '14 at 23:45
Have you tried restarting Eclipse? Alternatively, you can run `adb logcat` from the command line (assuming your PATH is set correctly). — Code-Apprentice, May 14 '14 at 23:47
Yes i have tried to restart eclipse... PATH of ADT?? where check? — roxdragon, May 14 '14 at 23:50
setting the PATH environment variable for your OS. The details depend on which OS you use. Do a google search for details. — Code-Apprentice, May 14 '14 at 23:51
adb is in sdk/platform-tools. I assume you mean isEmpty(), not isEmpty(""). What happens if you get rid of the Toast line, and just try to access a method of S1[1]? — user234461, May 14 '14 at 23:58
@user234461 i want only check if S1[1] is empty. If i try isEmpty() crash... @ Code-Guru i have edited 1st post... logcat don't rappreset my app. — roxdragon, May 15 '14 at 00:01

score 1 · Accepted Answer · answered May 15 '14 at 00:04

1

Instead of this:

if (S1[1].equals("")) {
   ...
}

Do this:

final String s = S1[1]; // Can be null
if (s == null || s.isEmpty()) {
   ...
}

answered May 15 '14 at 00:04

cybersam

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compare String[] and crash app

1 Answers1