String/Number formatting

[x-ice]

How can I format a number in java so that only two numbers are displayed after the decimal point?

I have tried using DecimalFormat with no luck.

Here is the code I used.

float newTotPrice = totPrice + Double.valueOf(myProduct.getPrice()).floatValue();
//For formatting a number
DecimalFormat df = new DecimalFormat("#.00");
//Format 'newTotPrice' so that only two digits are shown after the decimal point
df.format(newTotPrice);
//Show total price
lblTotPrice.setText("£ " + newTotPrice);

This doesn't work as I got a result of "£ 509.97003"