Java: Lead 0 in double and 1 digit after a dot

Question

I want to format a double to string with the max length is 7 which contains a dot "." and one digit after it.
For example:

 123.4 becomes "00123.4"
 12345 becomes "12345.0"
 12345.63 becomes "12345.6"

Any help, please!

Answer 1

you can do this:

double test = 33333.327;

String formatted = String.format("%07.1f", test)

System.out.println(formatted);

Answer 2

String.format("%07.1f", myDouble);

See http://docs.oracle.com/javase/8/docs/api/java/util/Formatter.html

Answer 3

Try this -

DecimalFormat df = new DecimalFormat("00000.0");

...

System.out.println(df.format(123.4)); -> 00123.4
System.out.println(df.format(12345)); -> 12345.0
System.out.println(df.format(12345.63)); -> 12345.6