Handling With Double In Computations(Java)

Question

For a simple calculation like:

1+1 = 2.0

I'm not sure how to get rid of the unnecessary .0 after the 2 integer, even though I'm working with a double variable as my output. So, 1.1 + 1 = 2.1 is acceptable.

My output code looks like this:

        double total = 1+1;        
        output.setText(String.valueOf(total));

See [this](http://stackoverflow.com/a/14126736/1611791). – 4J41 Dec 29 '13 at 22:24 — 4J41, Dec 29 '13 at 22:24

score 3 · Answer 1 · answered Dec 29 '13 at 22:22

3

Use java.text.NumberFormat or String.format(), e.g.:

output.setText(String.format("%.0f", total));

answered Dec 29 '13 at 22:22

Moritz Petersen

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score 0 · Answer 2 · answered Dec 29 '13 at 22:34

You could also check with modulo for the value after the . , but I think you should work with the other solution mentioned by @MoritzPetersen .

           double total = 1+1.1;        
            if((total%1) == 0) {
                System.out.println((String.valueOf(total)).split("\\.")[0]);
            }
            else {
                System.out.println((String.valueOf(total)));
            }

Handling With Double In Computations(Java)

2 Answers2