int cannot be converted to string?

Question

I am trying to write the instructions to notice when circle is about to be 12 and then add 1 to square.

The code below works fine for me

   int x = Integer.parseInt(circle.getText()); 
   x = x + 1;
   String z = Integer.toString(x);
   circle.setText(z);

However, I am having trouble with these new instructions I am trying to write. How can I get square, convert to integer, add 1 and then put the value back?

   int q = Integer.parseInt(square.getText());
   x = q + 1;
   square.setText(x);

The answer is in the first snippet: convert the int to a String. — JB Nizet
– JB Nizet, Commented Nov 9, 2014 at 12:17
In the first snippet you do Integer.toString(x). In the second you do not. Why do you think it's not required. — Boris the Spider
– Boris the Spider, Commented Nov 9, 2014 at 12:19

Eran · Accepted Answer · 2014-11-09 12:17:26Z

8

You can convert to String using Integer.toString() :

square.setText(Integer.toString(x));

answered Nov 9, 2014 at 12:17

Eran

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Comments

Dici · Accepted Answer · 2014-11-09 12:19:26Z

2

square.setText(x+"")

Will work

edited Nov 9, 2014 at 12:19

Dici

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answered Nov 9, 2014 at 12:19

Don Chakkappan

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Comments

Dici · Accepted Answer · 2014-11-09 12:18:31Z

0

Why would an int be convertible to a String (unless an implicit conversion exists, which is not the case, there is not a lot of implicit things with the Java compiler, primitive wrappers and string concatenation apart) ?

Use one of these two options :

square.setText(String.valueOf(x));
square.setText(x + "");

answered Nov 9, 2014 at 12:18

Dici

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2 Comments

Twisted AISTRIKE at 1687989253 Over a year ago

honestly... I'm kind of new to Java as well and didn't understand (and really I still don't) why something that can be printed to the screen doesn't have an implicit conversion. I know you said Java omits a lot of conversions that happen implicitly in other languages, but why do they? It doesn't seem like you lose any data... Could you possibly update your answer to shed some light on this?

Dici Over a year ago

Printing things out and concatenating strings is a special case where the compiler will automatically add string conversions, but that's the only place. Everywhere else, you have to use types rigorously.

Krusty Simancas · Accepted Answer · 2021-07-13 13:23:03Z

-1

Using your own code String z = Integer.toString(x); square.setText(z);

answered Jul 13, 2021 at 13:23

Krusty Simancas

1

1 Comment

Eric Aya Over a year ago

Same solution as stackoverflow.com/a/26828052/2227743

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