Question

I have entered a value to my database as $1000000000. it stored in Database also its looks like as same. when retrieve it from using the DB. Its converted to $1e+09 automatically. how to restrict it.

thanks in advance.

Answer 1

1.000.000.000 is equal to 1e+09, the only difference is that the second is value is printed in scientific notation. You said, that the database field holds the value in it’s “standard” form.

I assume, you get the value and store it in a float (Float) or double (Double) field/variable. Now if you convert that number to a String you can use the Formatter class to choose between scientific and non-scientific representation:

double value = 1000000000.;
String scientific = String.format("%f", value);
String nonScientific = String.format("%e", value);
String automatic = String.format("%g", value);

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Hint – if you have a currency output and want to restrict the precision, try

System.out.printf("Price: $%.2f", value);