What does converting a string to long means?

**Jack_Tauson_Sr** · 01-05-2013, 01:38 PM

Could anyone explain with the example?

**Sierra** · 01-05-2013, 02:25 PM

It means you parse a character sequence to a computer usable format of a number.

Java Code:

String sMyString = "412312315134";
long   iMyLong = Long.parseLong( sMyString );

**Jack_Tauson_Sr** · 01-11-2013, 07:52 PM

I know adding two numbers represented as string is not possible but why are we declaring numbers as a String if we know that we have to add them in future? I hope you understand my question.

Also closing someones thread without understanding his/her question properly is not appropriate.

**Norm** · 01-11-2013, 07:55 PM

why are we declaring numbers as a String if we know that we have to add them in future?

You're right. That makes no sense. Who wrote the code that is doing that? Did they add any comments explaining why they did it that way?

**Jack_Tauson_Sr** · 01-11-2013, 08:04 PM

No, that's my question. That's what I asked why would there be a need of converting String to long at all?

**Norm** · 01-11-2013, 08:15 PM

If it were read from a text file, it would be a String.
Or if it were typed into a textfield.

**Sierra** · 01-11-2013, 08:16 PM

Sadly those stupid users today have difficulties in communicating binary via RS232... actually keyboards would be a lot simpler if people could do that. So maybe you should google about ASCII and the evolution of the human interface.

**JosAH** · 01-11-2013, 08:35 PM

Originally Posted by Jack_Tauson_Sr

Also closing someones thread without understanding his/her question properly is not appropriate.

If you mean your other identical thread: believe me, Darryl understood very well what this question is all about and double posts are closed (I usually merge them with the other thread or, when no replies are given yet, I simply remove them). Don't double post anymore.

kind regards,

Jos

**Jack_Tauson_Sr** · 01-12-2013, 06:43 AM

Originally Posted by Norm

If it were read from a text file, it would be a String.
Or if it were typed into a textfield.

Thanks Norm. That's the answer I was looking for.

**Jack_Tauson_Sr** · 01-12-2013, 06:44 AM

Originally Posted by Sierra

Sadly those stupid users today have difficulties in communicating binary via RS232... actually keyboards would be a lot simpler if people could do that. So maybe you should google about ASCII and the evolution of the human interface.

Is your answer relevant to my question? I don't know what you are talking about.