String + Double in AlertDialog

Question

My problem is this:

Double result = SubActivity.this.resultado(SubActivity.this.num1, SubActivity.this.pes1, SubActivity.this.num2, SubActivity.this.pes2, 
    SubActivity.this.num3, SubActivity.this.pes3, 
    SubActivity.this.num4, SubActivity.this.pes4, 
    SubActivity.this.num5, SubActivity.this.pes5);                  

AlertDialog.Builder builder = new AlertDialog.Builder(SubActivity.this);                    
builder.setIcon(R.drawable.ic_launcher);                    
builder.setTitle(R.string.result);                    
builder.setMessage(R.string.n + result);                    
builder.setPositiveButton("OK", null);                    
builder.show();                 
return;

But I got a error:

There is no applicable method to '(double)'

How i can add the string?

if your intent is to concatenate R.string.n to result, you can use getString(R.string.n) + result — Blackbelt, Oct 12 '15 at 20:07

score 0 · Accepted Answer · answered Oct 12 '15 at 20:07

0

I believe your problem is that there is an implicit cast from string to double because your function returns a string, but you are storing in it a result of type double.

Your code:

Double result = String functionThatReturnsAString();

You need to use the Double.parseDouble() function for the conversion

Double result = Double.parseDouble(functionThanReturnsAString());

answered Oct 12 '15 at 20:07

Tony Ruth

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I grab the double in the EditText, the "Double result" are only numbers. – Crimeiaman Oct 12 '15 at 20:16
What I mean is that EditText returns a string and there is no implicit cast (Double)string, so you have to use the parseDouble function for the conversion. I believe the other answers are better though because it looks like you only need the string, you are only storing the Double to convert it back to a string later. – Tony Ruth Oct 12 '15 at 20:48
I got with other method Tony Ruth, anyway thanks for the answer. – Crimeiaman Oct 13 '15 at 20:36

score 0 · Answer 2 · edited May 23 '17 at 10:27

0

Try -

builder.setMessage(Double.parseDouble(getResources.getString(R.String.n))+ result)+"");

(You may need to tinker a bit to get the string from R.string.n

the reference

edited May 23 '17 at 10:27

Community

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answered Oct 12 '15 at 20:08

Darpan

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Error: -Unknown entity 'getResources' – Crimeiaman Oct 12 '15 at 20:15
use context or whatever that makes you use `getResources()`. (I guess you might have figured it out). Or if not, its a small google query away! – Darpan Oct 12 '15 at 20:17

String + Double in AlertDialog

2 Answers2