How do I round a double to the thirds place?

Question

double1 = .05100000000003;

double2 = .05295;

How do I round a decimal to three places? Respectively, I'd like the output to do this 0.051 and 0.053.

I tried Math.round(double1); but I got back 0.0.

Any ideas would be greatly appreciated thanks.

You could multiply by 1000, round to and divide by 1000.0. – Nowhere Man Sep 21 '20 at 18:56 — Nowhere Man, Sep 21 '20 at 18:56

score 1 · Accepted Answer · answered Sep 21 '20 at 19:08

1

Try the following code in Java. The number of zeros indicates how many decimal places you would like to round to. (In this case there are 3 zeros).

(double)Math.round(value * 1000d) / 1000d

EDIT: same answer is provided in this previous StackOverflow Post

answered Sep 21 '20 at 19:08

Vignesh Pethuraj

1

that's weird...it works on my Java compiler (returns 0.053). What Java version are you running? – Vignesh Pethuraj Sep 21 '20 at 19:38
2

my bad that's my fault it works. i forgot to apply it to my other double – Sep 21 '20 at 19:41

1 Answers1