How to use Java's DecimalFormat for “smart” currency formatting?

Question

I\'d like to use Java\'s DecimalFormat to format doubles like so:

#1 - 100 -> $100
#2 - 100.5 -> $100.50
#3 - 100.41 -> $100.41

Th

Answer 1

printf also works.

Example:

double anyNumber = 100; printf("The value is %4.2f ", anyNumber);

Output:

The value is 100.00

4.2 means force the number to have two digits after the decimal. The 4 controls how many digits to the right of the decimal.