How to print a float with 2 decimal places in Java?

Question

Can I do it with System.out.print?

Answer 1

You can use the printf method, like so:

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

In short, the %.2f syntax tells Java to return your variable (val) with 2 decimal places (.2) in decimal representation of a floating-point number (f) from the start of the format specifier (%).

There are other conversion characters you can use besides f:

• d: decimal integer
• o: octal integer
• e: floating-point in scientific notation

Answer 2

You can use DecimalFormat. One way to use it:

DecimalFormat df = new DecimalFormat(); df.setMaximumFractionDigits(2); System.out.println(df.format(decimalNumber)); 

Another one is to construct it using the #.## format.

I find all formatting options less readable than calling the formatting methods, but that's a matter of preference.