how to avoid -e exponential representation in servlet

[sakthi vadivel]

hi ranch.

Anybody tell me the API to convert exponential number to ordinary number in servlet.

thanks in advance.
sakthi

[Ulf Dittmer]

(Moved to a more general forum, since the answer has nothing to do with servlets.)

What do you mean by "convert" - what data type and format does the input have, and what data type and format should the output have? Integer? String? Something else? Can you give an example of input and desired output?

[sakthi vadivel]

sorry i forget to mention that...

I want to display the double value without exponential representation. whether string or long or double....

[Jesper de Jong]

Use a DecimalFormat object to convert your double to a String:

double d = 3.141592652358979;

DecimalFormat df = new DecimalFormat("0.0000");
String text = df.format(d);

System.out.println(text);

Lookup the documentation for DecimalFormat.

[Ulf Dittmer]

Something like the following should do the trick. Be sure to read the javadocs of the toPlainString method.

double d = 1.0e20;
System.out.println(new BigDecimal(d).toPlainString());

d = 1.0e-20;
System.out.println(new BigDecimal(d).toPlainString());

[Campbell Ritchie]

If you know the likely range of the values to display, try the %f tags. They work with the Formatter#format, PrintStream#format, PrintStream#print(ln) and String#format methods.

[sakthi vadivel]

thankyou folks...

i got solution new java.math.BigDecimal(d).toBigInteger()

because toPlainString() is undefined for the BigDecimal....

thanks to all....

[Rob Spoor]

I think you need new glasses. toPlainString() is undefined for BigInteger; it is most definitely defined for BigDecimal.