How use Java printf to format a double’s decimals. To use Java printf to format double and float values with decimal place precision, follow these two rules:. Use %f as the double specifier in the ...

Java double precision. The precision of a double in Java is 10-324 decimal places, although true mathematical precision can suffer due to issues with binary arithmetic. To simplify display, you can ...

The basic gist of it is that for this special 64-bit floating point value, the Java call Double.parseDouble("2.2250738585072012e-308") will get stuck in an infinite loop. Read the link above to ...