Converting double to string and back again? 1

[DeanConsulting]

I am a Java newbie and I know that I have a simple question that someone can help me with. I just cannot find the solution on my own.

How does one convert double to string and string to double? I cannot seem to figure out how to do this. Is there a cast for it?

Thanks in advance.
Noble


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Noble D. Bell

http://www.noblesoftware.com

http://www.noblebell.com

 

[Rodie]

Euh ... String to double ??
A String can contains hundreds of characters. How do u want to convert it in 8 bytes ?

U mean long -> char and char -> long no ?

 

[DeanConsulting]

What I mean is this:

I am doing a calculator project.


I have two variables that are type double.

I want to be able to add, subtract, multiply, or divide by the user entering numbers in via keypad or mouse

I need to take results and display them in the calculator display.

ie. jTextField

I hope this is more understandable than my last post. Sorry.

Noble



---------------------------------------
Noble D. Bell

http://www.noblesoftware.com

http://www.noblebell.com

 

[sedj]

If you're dealing with a primitive type double :

double dVal = 1.0d;
String sVal = dVal +"";
double dNewVal = 0.0d;
try { 
  dNewVal = Double.parseDouble(sVal);
} catch (NumberFormatException npe) {
  // handle error
}

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[Diancecht]

Or

String sVal = Double.toString(dVal);

Cheers,

Dian