Java Format Two Decimal Places

Question

I'm getting an error while trying to format a string number:

Argument type 'String' does not match the type of the format specifier '%.2f'.

The String is created by:

String cost = Double.parseDouble((Double.parseDouble(".04") * aLONGTYPEnumber * 24));

• ter: It did not work. Still gives same error
• Pedro Hidalgo: Possible duplicate of How to display an output of float data with 2 decimal places in Java?
• Kaushal28: @PedroHidalgo I think OP has double data
• Pedro Hidalgo: @Kaushal28 ok, it could be a duplicated of this one I think: stackoverflow.com/questions/8819842/… This is what he is looking for.
• Lew Bloch: Your code doesn't show any formatted output commands.

Answer 1

The problem is you're trying to print a String using a double specifier (%.2f).

Using:

System.out.printf("%.2f", d);

requires that d is a double or Double, while your cost is a String.

Try it with:

double cost = Double.parseDouble(".04") * aLONGTYPEnumber * 24;

and it should work

• ter: Thank You so much it worked. I don't know what i was thinking.

Answer 2

You can format your string like:

NumberFormat formatter = new DecimalFormat("#0.00"); 
System.out.println(formatter.format((Double.parseDouble(".04") * aLONGTYPEnumber * 24)));