Separating double according to "." in java [duplicate]

Question

i have a double number which is "547.123456"

i just want to use this double as "547.1" like only 1 number after "."

How can i do that?

Answer 1

Use BigDecimal

double f=547.123456;
BigDecimal d=new BigDecimal(f);
System.out.print( d.setScale(1, RoundingMode.FLOOR));