Why program crashes when using integer value in setText?

Question

I am trying to set text in my button .

answers is an ArrayList of Integers

On converting it to string it works perfectly

button0.setText(Integer.toString(answers.get(0)));

But on using integer value my app crashes.

button0.setText(answers.get(0));

Any suggestions why this happening ?

As TextView.seText() easily set the integer text to it but why button is unable to do it ?

Crashes? Are you sure you are not talking about a compiler error? Hint : read [mcve] and enhance your question accordingly. — GhostCat, May 04 '18 at 17:12
Because there's a difference between *integer text* (the ASCII representation of the digit `0`) and the *integer* zero. Numbers are not characters. They're numbers, which is why they're called integers and not characters or strings. — Ken White, May 04 '18 at 17:39

score 1 · Accepted Answer · answered May 04 '18 at 16:58

It is happening because setText() only expects string or char[].

So either you can perform type casting or you can add quotes with the number

By type casting String.valueOf(number)
By adding "" with the number quantityTextView.setText(""+number); or quantityTextView.setText(number+"");
textView.setText(Integer.toString(number));

score 0 · Answer 2 · answered May 04 '18 at 16:58

0

This happens because setText() expects a String as argument. Just do like this

String.valueOf(integer)

And thus will work.

answered May 04 '18 at 16:58

Prasheel

2 Answers2