floating point - Java: How to change Double 2.3 to "2.0"? -

floating point - Java: How to change Double 2.3 to "2.0"? -

how can alter

double d = 2.3

to

double value of 2.0

i used math.round, produces 2.0

i need save string 2.0

you can utilize printf(...):

system.out.printf("double value of %.1f", math.round(d));

or can save string using string.format(...):

string s = string.format("double value of %1f", math.round(d));

java floating-point double