Editext Value Adding not Working

Question

EditText crr1 = (EditText) findViewById(R.id.ch1);
        add=Double.parseDouble(crr1.getText().toString());
        EditText crr2 = (EditText) findViewById(R.id.ch2);
        add1=(Double.parseDouble(crr2.getText().toString()));
        EditText crr3 = (EditText) findViewById(R.id.ch3);
        add2=(Double.parseDouble(crr3.getText().toString()));
        EditText crr4 = (EditText) findViewById(R.id.ch4);
        add3=(Double.parseDouble(crr4.getText().toString()));
        EditText crr5 = (EditText) findViewById(R.id.ch5);
        add4=(Double.parseDouble(crr5.getText().toString()));
        EditText crr6 = (EditText) findViewById(R.id.ch6);
        add5=(Double.parseDouble(crr6.getText().toString()));
        tadd=add+add1+add2+add3+add4+add5;

I'm adding the values of edittext with double.. why it's showing error? when I call this code, why app close automatically..!!

Are you using Eclipse for developing? If so, use Logcat http://developer.android.com/tools/debugging/debugging-log.html it's very useful to analyze errors while executing — SebasSBM, May 06 '15 at 19:45
Sorry @slanecek new to site and android therefore it's happened. But I found the problem. Thanks all of you.. I should check the empty values and replace those with minimum 0. Thanks — Asif Mushtaq, May 06 '15 at 20:09

score 1 · Accepted Answer · edited May 23 '17 at 12:32

1

You haven't posted stacktrace, but ok.

You initialize an Edit Text and then you are trying to parse a double from an EMPTY string that you got from edittext.getText().toString(). That's why it's crashing.

If you run your app in debugging mode on a physical device, you can use Logcat to see the log's stacktrace.

How to enable LogCat/Console in Eclipse for Android?

edited May 23 '17 at 12:32

Community

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answered May 06 '15 at 19:42

slanecek

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Hi thanks for your interest, can you explain how i can solve it? I'm little confused.. there is already value in ch1 id.. then how it could be empty? – Asif Mushtaq May 06 '15 at 19:45
1

When you call findViewById(), it creates an Edit Text. It is created EMPTY, it has value "". On the next line you try to read a double value from the empty string. Then it crashes, because in the empty string is no double value. Look at Bojan Kseneman answer. – slanecek May 06 '15 at 19:50
Hi Thanks I found the problem..!! I should check the empty value.. and replace that with 0..!! Got the point.. Thanks.. – Asif Mushtaq May 06 '15 at 20:07
If my answer helped, please, accept it as the solution. – slanecek May 06 '15 at 20:08

score 0 · Answer 2 · answered May 06 '15 at 19:43

Your app possibly crashes because the value in EditText is not a number and you get the NumberFormatException. Surround your code with try, catch

try {
      double a = Double.parseDouble(et.getText().toString());
}
catch (NumberFormatException e){
    // Not a number. EditText empty???
}

Mohammad Arman · Answer 3 · 2015-05-06T20:06:18.453

0

In your onCreate method:

    EditText crr1 = (EditText) findViewById(R.id.ch1);        
    EditText crr2 = (EditText) findViewById(R.id.ch2);
    EditText crr3 = (EditText) findViewById(R.id.ch3);
    EditText crr4 = (EditText) findViewById(R.id.ch4);
    EditText crr5 = (EditText) findViewById(R.id.ch5);
    EditText crr6 = (EditText) findViewById(R.id.ch6);
    Button btnResult =(Button) findViewById(R.id.btn1);

Now add a button click event:

btnResult.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                  add=Double.parseDouble(crr1.getText().toString());
                  add1=(Double.parseDouble(crr2.getText().toString()));
                  add3=(Double.parseDouble(crr4.getText().toString()));
                  add4=(Double.parseDouble(crr5.getText().toString()));
                  add5=(Double.parseDouble(crr6.getText().toString()));
                  tadd=add+add1+add2+add3+add4+add5;
            }
        });

All the variable should be global.

edited May 06 '15 at 20:06

answered May 06 '15 at 19:45

Mohammad Arman

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Sorry I'm little confused... add=Double.parseDouble(crr1.getText().toString()); what is difference between yours and my code? – Asif Mushtaq May 06 '15 at 19:49
There isn't any difference. I meant to say, this line as well as all the other lines of similar kind must be added inside a button click event (not in onCreate method). – Mohammad Arman May 06 '15 at 19:51
You mean I need to work with one by one ? and different id will not work? line are sames but ID's are different.. I'm really sorry may be I'm confused.. -_- – Asif Mushtaq May 06 '15 at 19:55
Nope, you are getting confused. I am updating the answer, for better understanding. – Mohammad Arman May 06 '15 at 19:58
Okay thanks, It would be better if you can paste an example same as my code. – Asif Mushtaq May 06 '15 at 20:00
Hi Thanks I found the problem..!! I should check the empty value.. and replace that with 0..!! Got the point.. Thanks.. – Asif Mushtaq May 06 '15 at 20:07
i think after your code I could face same problem, If I will leave any edittext empty then it will crash the app..!! – Asif Mushtaq May 06 '15 at 20:14
1

Yes thats basic thing! As you are parsing the editText input into double. It will fail to parse a null object into a double variable. You can check if(add != null) then you will do that thing. else add = 0.0 something like that. – Mohammad Arman May 06 '15 at 20:17

Editext Value Adding not Working

3 Answers3